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QTL Mapping and Q×E Interactions of Grain Cooking and Nutrient Qualities in Rice Under Upland and Lowland Environments 被引量:2
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作者 郭咏梅 穆平 +2 位作者 刘家富 卢义宣 李自超 《Journal of Genetics and Genomics》 SCIE CAS CSCD 北大核心 2007年第5期420-428,共9页
Grain cooking and nutrient qualities are the most important components of rice (Oryza sativa L.) quality. A doubled haploid (DH) population from a cross between two japonica cultivars was used to examine the pheno... Grain cooking and nutrient qualities are the most important components of rice (Oryza sativa L.) quality. A doubled haploid (DH) population from a cross between two japonica cultivars was used to examine the phenotypic values and potential QTLs for the quality traits. The cooking and nutrient quality traits, including the amylose content (AC), the gel consistency (CJC), the gelatinization temperature (GT), and the protein content (PC), in rice grown under upland and lowland environments were evaluated. Significant differences for AC, GC, GT, and PC between upland and lowland environments were detected. The phenotypic values of all four traits were higher under upland environment than lowland environment. The value of PC under upland environment was significantly higher (by 37.9%) than that under lowland environment. This suggests that upland cultivation had large effect on both cooking and nutrient qualifies. A total of seven QTLs and twelve pairs of QTLs were detected to have significant additive and epistatic effects for the four traits. Significant Q x E interaction effects of two QTLs and two pairs of QTLs were also discovered. The general contribution of additive QTLs ranged from 1.91% to 19.77%. The Q × E interactions of QTLs QGt3 and QAc6 accounted for 8.99% and 47.86% of the phenotypic variation, respectively, whereas those of the 2 pairs of epistatic QTLs, QAc6-QAcllb and QAc8-QAc9, accounted for 32.54% and 11.82%, respectively. Five QTLs QGt6b, QGt8, QGt11, QGcl, and QPc2, which had relatively high general contribution and no Q x E interactions, were selected to facilitate the upland rice grain quality breeding. 展开更多
关键词 upland rice cooking quality nutrient quality QTL mapping Q × e interaction effects
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Pressure-Induced Shift of R-Line of MgO:Cr^3+ with Electron-Phonon Interaction Effect
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作者 ZHANG Zheng-Jie MA Dong-Ping 《Communications in Theoretical Physics》 SCIE CAS CSCD 2007年第2X期357-362,共6页
By means of improved ligand-field theory, the "pure electronic" pressure-induced shift (PS) and the PS due to electron-phonon interaction (EPI) of R-line of MgO:Cr^3+ have been calculated, respectively. The ca... By means of improved ligand-field theory, the "pure electronic" pressure-induced shift (PS) and the PS due to electron-phonon interaction (EPI) of R-line of MgO:Cr^3+ have been calculated, respectively. The calculated results are in very good agreement with the experimental data. The behaviors of the pure electronic PS of R-line of MgO:Cr^3+ and the PS of its R-line due to EPI are different. It is the combined effect of them that gives rise to the total PS of R-line, which has satisfactorily explained the experimental results. The comparison between the feature of R-line PS of MgO:Cr^3+ and that of R1-line PS of ruby has been made. 展开更多
关键词 high-pressure effect electron-phonon interaction R-line improved ligand-field theory admixture of |t2^2(3T1)e^4T2) and |t2^32e
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Genome-wide association mapping and genomic prediction of stalk rot in two mid-altitude tropical maize populations
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作者 Junqiao Song Angela Pacheco +7 位作者 Amos Alakonya Andrea S.Cruz-Morales Carlos Muoz-Zavala Jingtao Qu Chunping Wang Xuecai Zhang Felix San Vicente Thanda Dhliwayo 《The Crop Journal》 SCIE CSCD 2024年第2期558-568,共11页
Maize stalk rot reduces grain yield and quality.Information about the genetics of resistance to maize stalk rot could help breeders design effective breeding strategies for the trait.Genomic prediction may be a more e... Maize stalk rot reduces grain yield and quality.Information about the genetics of resistance to maize stalk rot could help breeders design effective breeding strategies for the trait.Genomic prediction may be a more effective breeding strategy for stalk-rot resistance than marker-assisted selection.We performed a genome-wide association study(GWAS)and genomic prediction of resistance in testcross hybrids of 677 inbred lines from the Tuxpe?o and non-Tuxpe?o heterotic pools grown in three environments and genotyped with 200,681 single-nucleotide polymorphisms(SNPs).Eighteen SNPs associated with stalk rot shared genomic regions with gene families previously associated with plant biotic and abiotic responses.More favorable SNP haplotypes traced to tropical than to temperate progenitors of the inbred lines.Incorporating genotype-by-environment(G×E)interaction increased genomic prediction accuracy. 展开更多
关键词 Maize stalk rot genome-wide association mapping Haplotype analysis genomic prediction g×e interaction
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Effects of salinity, light and temperature on growth rates of two species of Gracilaria (Rhodophyta) 被引量:5
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作者 徐永健 韦玮 方建光 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2009年第2期350-355,共6页
Effects of temperature, salinity and light intensity on growth rates of Gracilaria lichenoides and G. tenuistipitata var. liui Zhang et Xia were tested. Eight to ten levels of each factor were first tested separately.... Effects of temperature, salinity and light intensity on growth rates of Gracilaria lichenoides and G. tenuistipitata var. liui Zhang et Xia were tested. Eight to ten levels of each factor were first tested separately. The best growth rate was obtained under the conditions of 32℃, 30 and 240 μmol/(m^2·s) for G. lichenoides, and 24℃, 20 and 200 μmol/(m^2·s) for G. tenuistipitata, respectively. Then a uniform design was used to evaluate the optimal combinations of the three factors. The best conditions for the highest daily specific growth rates (% increase in wet weight) are determined to be 31.30℃, 32.10, and 287.23 lamol/(m^2·s) for G. lichenoides (16.26%/d), and 25.38℃, 21.10, and 229.07 lamol/(m^2·s) for G tenuistipitata (14.83%/d), respectively. 展开更多
关键词 gracilaria lichenoides g. tenuistipitata var. liui Zhang et Xia environmental factors uniformdesign interaction effect
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Pressure Effects on Spectra of Tunable Laser Crystal GSGG:Cr^3+ I:Theory 被引量:2
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作者 MADong-Ping ZHANGJi-Ping 《Communications in Theoretical Physics》 SCIE CAS CSCD 2003年第2期249-256,共8页
A theory for shifts of energy spectra due to electron-phonon interaction (EPI) has been developed. Both the temperature-independent contributions and the temperature-dependent ones of acoustic branches and optical bra... A theory for shifts of energy spectra due to electron-phonon interaction (EPI) has been developed. Both the temperature-independent contributions and the temperature-dependent ones of acoustic branches and optical branches have been derived. It is found that the temperature-independent contributions are very important, especially at low temperature. The total pressure-induced shift (PS) of a level (or spectral line or band) is the algebraic sum of its PS without EPI and its PS due to EPI. By means of both the theory for shifts of energy spectra due to EPI and the theory for PS of energy spectra, the total PS of R<SUB>1</SUB> line of tunable laser crystal GSGG:Cr<SUP>3+</SUP> at 70 K as well as the ones of its R<SUB>1</SUB> line, R<SUB>2</SUB> line and U band at 300 K will be successfully calculated and explained in this series of papers. 展开更多
关键词 high-pressure effect line shift spin-orbit interaction electron-phonon interaction d-orbital coupling between t(2)(2)(T-3(1))e(4)T(2) and t(2)(3) e-2 tunable laser crystal
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Two-dimensional transport and strong spin-orbit interaction in SrMnSb_2
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作者 凌霁玮 刘彦闻 +11 位作者 金昭 黄沙 王伟懿 张成 袁翔 刘姗姗 张恩泽 黄策 Raman Sankar Fang-Cheng Chou 夏正才 修发贤 《Chinese Physics B》 SCIE EI CAS CSCD 2018年第1期203-208,共6页
We have carried out magneto-transport measurements for single crystal SrMnSb2. Clear Shubnikov-de Haas oscil- lations were resolved at relatively low magnetic field around 4 T, revealing a quasi-2D Fermi surface. We o... We have carried out magneto-transport measurements for single crystal SrMnSb2. Clear Shubnikov-de Haas oscil- lations were resolved at relatively low magnetic field around 4 T, revealing a quasi-2D Fermi surface. We observed a development of quantized plateaus in Hall resistance (Rxy) at high pulsed fields up to 60 T. Due to the strong 2D confine- ment and layered properties of the samples, we interpreted the observation as bulk quantum Hall effect that is contributed by the parallel 2D conduction channels. Moreover, the spin degeneracy was lifted leading to Landau level splitting. The presence of anisotropic g factor and the formation of the oscillation beating pattern reveal a strong spin-orbit interaction in the SrMnSb2 system. 展开更多
关键词 high field transport spin-orbit interaction anisotropic g factor bulk quantum Hall effect
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Multi-Environment Evaluation and Genotype ×Environment Interaction Analysis of Sorghum [<i>Sorghum bicolor</i>(L.) Moench] Genotypes in Highland Areas of Ethiopia
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作者 Amare Seyoum Zigale Semahegn +12 位作者 Amare Nega Sewmehone Siraw Adane Gebereyhones Hailemariam Solomon Tokuma Legesse Kidanemaryam Wagaw Temesgene Terresa Solomon Mitiku Yirgalem Tsehaye Moges Mokonen Wakjira Chifra Habte Nida Alemu Tirfessa 《American Journal of Plant Sciences》 2020年第12期1899-1917,共19页
Sorghum [<i><span style="font-family:Verdana;">Sorghum bicolor</span></i><span style="font-family:Verdana;"> (L.) Moench] is a high-yielding, nutrient-use efficient, a... Sorghum [<i><span style="font-family:Verdana;">Sorghum bicolor</span></i><span style="font-family:Verdana;"> (L.) Moench] is a high-yielding, nutrient-use efficient, and drought tolerant crop that can be cultivated on over 80 per cent of the world’s agricultural land. However, a number of biotic and abiotic factors are limiting grain yield increase. Diseases (leaf and grain) are considered as one of the major biotic factors hindering sorghum productivity in the highland and intermediate altitude sorghum growing areas of Ethiopia. In addition, the yield performance of crop varieties is highly influenced by genotype × environment (G × E) interaction which is the major focus of researchers while generating improved varieties. In Ethiopia, high yielding and stable varieties that withstand biotic stress in the highland areas are limited. In line with this, the yield performance of 21 sorghum genotypes and one standard check were evaluated across 14 environments with the objectives of estimating magnitude G </span><span style="font-family:Verdana;">× E interaction for grain yield and to identify high yielder and stable genotypes across environments. The experiment was laid out using Randomized Complete Block Design with three replications in all environments. The combined analysis of variance across environments revealed highly significant differences among environments, genotypes and G × E interactions of grain yield suggesting further analysis of the G × E interaction. The results of the combined AMMI analysis of variance indicated that the total variation in grain yield was attributed to environments effects 71.21%, genotypes effects 4.52% and G × E interactions effects 24.27% indicating the major sources of variation. Genotypes 2006AN7010 and 2006AN7011 were high yielder and they were stable across environments and one variety has been released for commercial production and can be used as parental lines for genetic improvement in the sorghum improvement program. In general, this research study revealed the importance of evaluating sorghum genotypes for their yield and stability across diverse highland areas of Ethiopia before releasing for commercial production.</span> 展开更多
关键词 g × e interaction Additive Main effect and Multiplicative interaction (AMMI) genotype and genotype by environment (gge) genotypes & Stability
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Pressure Effects on Spectra of Tunable Laser Crystal GSGG: Cr^3+ IV: Pressure—Induced Shifts of R1 Line, R2 Line, and U Band at 300 K
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作者 MADong-Ping ZHANGJi-Ping 《Communications in Theoretical Physics》 SCIE CAS CSCD 2003年第5期621-630,共10页
By means of both a theory for pressure-induced shifts (PS) of energy spectra and a theory for shifts of energy spectra due to electron-phonon interaction (EPI), the 'pure electronic' PS and the PS due to EPI o... By means of both a theory for pressure-induced shifts (PS) of energy spectra and a theory for shifts of energy spectra due to electron-phonon interaction (EPI), the 'pure electronic' PS and the PS due to EPI of R<SUB>1</SUB> line, R<SUB>2</SUB> line, and U band of GSGG:Cr<SUP>3+</SUP> at 300 K have been calculated, respectively. The calculated results are in good agreement with all the experimental data. Their physical origins have also been explained. It is found that the mixing-degree of and base-wavefunctions in the wavefunctions of R<SUB>1</SUB> level of GSGG:Cr<SUP>3+</SUP> at 300 K is remarkable under normal pressure, and the mixing-degree rapidly decreases with increasing pressure. The change of the mixing-degree with pressure plays a key role not only for the 'pure electronic' PS of R<SUB>1</SUB> line and R<SUB>2</SUB> line but also the PS of R<SUB>1</SUB> line and R<SUB>2</SUB> line due to EPI. The pressure-dependent behaviors of the 'pure electronic' PS of R<SUB>1</SUB> line (or R<SUB>2</SUB> line) and the PS of R<SUB>1</SUB> line (or R<SUB>2</SUB> line) due to EPI are quite different. It is the combined effect of them that gives rise to the total PS of R<SUB>1</SUB> line (or R<SUB>2</SUB> line). In the range of about 15 kbar ~ 45 kbar, the mergence and/or order-reversal between levels and levels take place, which cause the fluctuation of the rate of PS for with pressure. At 300 K, both the temperature-dependent contribution to R<SUB>1</SUB> line (or R<SUB>2</SUB> line or U band) from EPI and the temperature-independent one are important. 展开更多
关键词 high-pressure effect spin-orbit interaction electron-phonon interaction d orbital coupling between t(2)(2)(3T(1))e(4)T(2) and t(2)(32)e tunable laser crystal
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Pressure Effects on Spectra of Tunable Laser Crystal GSGG:Cr3+ III: Pressure-Induced Shift of R1 Line at 70 K
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作者 MADong-Ping ZHANGJi-Ping 《Communications in Theoretical Physics》 SCIE CAS CSCD 2003年第4期493-500,共8页
By means of both a theory for pressure-induced shifts (PS) of energy spectra and a theory for shifts of energy spectra due to electron-phonon interaction (EPI), the 'pure electronic' PS and the PS due to EPI o... By means of both a theory for pressure-induced shifts (PS) of energy spectra and a theory for shifts of energy spectra due to electron-phonon interaction (EPI), the 'pure electronic' PS and the PS due to EPI of R<SUB>1</SUB> line of GSGG:Cr<SUP>3+</SUP> at 70 K have been calculated, respectively. Their physical origins have been revealed. It is found that the admixture of and base-wavefunctions in the wavefunctions of R<SUB>1</SUB> level of GSGG:Cr<SUP>3+</SUP> at 70 K is remarkable under the normal pressure, and the degree of the admixture rapidly decreases with increasing pressure. The change of the degree of the admixture with the pressure plays a key role for not only the pure electronic PS of R<SUB>1</SUB> line but also the PS of R<SUB>1</SUB> line due to EPI. The detailed calculations and analyses show that the pressure-dependent behaviors of the pure electronic PS of R<SUB>1</SUB> line and the PS of R<SUB>1</SUB> line due to EPI are quite different. It is the combined effect of them that gives rise to the total PS of R<SUB>1</SUB> line, which has satisfactorily explained the experimental data (including a reversal of PS of R<SUB>1</SUB> line). In contributions to PS of R<SUB>1</SUB> line due to EPI at 70 K, the temperature-independent contribution is much larger than the temperature-dependent contribution. The former results from the interaction between the zero-point vibration of the lattice and localized electronic state. 展开更多
关键词 high-pressure effect spin-orbit interaction electron-phonon interaction d orbital coupling between t(2)(2)(T-3(1))e(4)T(2) and t(2)(3)(2)e tunable laser crystal
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Approaches to Detecting Gene-Environment Interactions in Human Variation Using Genetic Engineering, Remote Sensing and GIS
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《Journal of Earth Science and Engineering》 2013年第6期371-378,共8页
Elucidation of the relationships between genetic polymorphisms and environmental exposures can provide insights into the pathways and mechanisms underlying complex traits. A new approach was used to detect G×E (... Elucidation of the relationships between genetic polymorphisms and environmental exposures can provide insights into the pathways and mechanisms underlying complex traits. A new approach was used to detect G×E (gene-environment) interactions involved in human skin pigmentation variation to better understand the adaptive evolution of skin pigmentation. Specifically, we used genetic engineering, remote UVR (ultraviolet radiation) sensing and GIS (geographic information systems) to integrate the analysis of genetic and environmental factors into a coherent biological framework. Since we expected to generate large datasets for this multidimensional analysis, we used PCA (principal components analysis) as a spatial statistical analysis technique for analyzing the G×E interactions. The results suggest that skin pigmentation may be affected by mutations induced by UVR and support the hypothesis that global variation in skin pigmentation may be the result of localized adaptation to different UVR conditions via natural selection. Analyzing the relationships between heterozygous frequencies for SNP (single nucleotide polymorphism) loci and seasonal UVR levels as the environment changes will help elucidate the selective mechanisms involved in the UVR-induced evolution of skin pigmentation. Skin pigmentation fulfills the criteria for a successful evolutionary G×E interactions model. 展开更多
关键词 RS (remote sensing gIS genetic engineering g×e interactions adaptability.
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Effect of Environmental Conditions on Flexural Strength and Fracture Toughness of Particulate Filled Glass-Epoxy Hybrid Composites
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作者 Basappa Hulugappa Mysuru Venkataramaiah Achutha Bheemappa Suresha 《Materials Sciences and Applications》 2016年第11期710-729,共20页
Multifunctional hybrid polymer composites were projected as novel solutions to meet the demands in various industrial applications ranging from automotive to aerospace. This investigation focuses on processing, flexur... Multifunctional hybrid polymer composites were projected as novel solutions to meet the demands in various industrial applications ranging from automotive to aerospace. This investigation focuses on processing, flexural strength and fracture toughness characterization of the glass fabric reinforced epoxy (G-E) composites and graphite/fly ash cenosphere (FAC) modified interface between the epoxy matrix and glass fabric. Hand lay-up followed by compression moulding method was used to fabricate the laminates. Flexural and fracture toughness tests at room temperature, elevated temperature and cryogenic temperature were conducted to assess the flexural strength (FS) and mode-I plane-strain fracture toughness (K<sub>IC</sub>). The experimental and characterization efforts suggest that both graphite and FAC fillers improve bonding at the interface. The study showed that the graphite is more favorable for enhancing FS and KIC of G-E composites. Graphite filled G-E hybrid composites with significant FS and KIC to that of unfilled and FA filled G-E were successfully achieved by incorporating 10 wt% graphite. The incorporation of fillers resulted in improvement of FS, which increased by 43% and 37.7% for 10Gr+G-E and 10FAC+G-E hybrid composites respectively. All composites show a 26% improvement in KIC at cryogenic temperature and a decrease of 12.5% at elevated temperature. According to the SEM observations, fiber debonding from the matrix is suppressed due to the presence and uniform distribution of graphite. In addition, micro-pores, matrix shearing, active toughening mechanisms induced by graphite, such as crack deflection, layer breakage and delamination of graphite layers contributed to the enhanced KIC of hybrid G-E composites. 展开更多
关键词 Particulate Filled g-e Flexural Strength Plane-Strain Fracture Toughness Temperature effect FRACTOgRAPHY
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稻米淀粉黏滞性QTL定位及其G×E互作分析 被引量:10
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作者 沈圣泉 庄杰云 +3 位作者 舒庆尧 包劲松 吴殿星 夏英武 《作物学报》 CAS CSCD 北大核心 2005年第10期1289-1294,共6页
用珍汕97B/密阳46构建RIL群体及其遗传图谱,经海南陵水和浙江杭州两地遗传试验,以精米粉RVA谱5个参数特征值PKV、HPV、CPV、BDV和SBV作为研究稻米淀粉黏滞性的指标,运用检测QTL主效应、上位性效应和G×E互作效应的遗传分析方法,进行... 用珍汕97B/密阳46构建RIL群体及其遗传图谱,经海南陵水和浙江杭州两地遗传试验,以精米粉RVA谱5个参数特征值PKV、HPV、CPV、BDV和SBV作为研究稻米淀粉黏滞性的指标,运用检测QTL主效应、上位性效应和G×E互作效应的遗传分析方法,进行QTL联合分析。结果表明,(1)在检测到涉及5个性状的9个主效应QTL中,除PKV位于第5染色体qPKV5外,其余8个QTL均位于第6染色体上;(2)5个性状均检测到位于第6染色体RM197-RZ516区间的主效应QTL,很可能它们为同一基因,该基因还与Wx基因处于相同区域;(3)检测到与PKV、HPV、CPV、BDV等4个性状有关的QTL主效基因均表现有G×E互作,且方向一致,在海南试验中有增效作用;(4)还检测到涉及5个性状的10对上位性互作效应,但均未发现有显著的上位性×环境互作效应。 展开更多
关键词 水稻 RIL群体 QTL定位 上位性效应 g×e互作效应 淀粉黏滞性
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稻米透明度QTLs主效应、上位性效应和G×E互作效应检测 被引量:8
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作者 沈圣泉 庄杰云 +2 位作者 王淑珍 舒庆尧 夏英武 《浙江大学学报(农业与生命科学版)》 CAS CSCD 北大核心 2006年第4期367-371,共5页
利用珍汕97B/密阳46构建的RIL群体(ZM-RIL)及其相应分子遗传图谱,以海南和杭州两地试验的精米透光率(%)作为稻米透明度考察指标,应用检测QTL主效应、加×加上位性效应和G×E互作效应的遗传分析方法,对该性状两个环境下数据进行... 利用珍汕97B/密阳46构建的RIL群体(ZM-RIL)及其相应分子遗传图谱,以海南和杭州两地试验的精米透光率(%)作为稻米透明度考察指标,应用检测QTL主效应、加×加上位性效应和G×E互作效应的遗传分析方法,对该性状两个环境下数据进行联合分析.共检测到5个控制该性状的主效应QTL,分别位于第2、6(2个)、8、10染色体上,总的遗传贡献率19.15%.其中,qTR2-2增加透明度的有效基因来源于母本;其余4个(qTR6-1、qTR6-2、qTR8-2、qTR10)则来自于父本.qTR6-1还与环境存在显著的GE互作效应.此外,还检测到2对控制稻米透明度的加性上位性互作基因,但它们均未与环境存在显著互作. 展开更多
关键词 水稻 RIL群体 QTL定位 加×加上位性效应 g×e互作效应 稻米透明度
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在中国北方汉族人群中血管紧张素转换酶基因I/D多态与G蛋白beta3亚基基因C825T多态对原发性高血压的联合作用(英文) 被引量:6
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作者 黄文涛 于鸿江 +4 位作者 鲁向锋 赵维燕 王月兰 顾东风 陈润生 《生物化学与生物物理进展》 SCIE CAS CSCD 北大核心 2007年第5期471-478,共8页
原发性高血压是一种复杂的多基因疾病,被认为是多个变异了的基因遗传交互以及环境因素共同作用的结果.证据表明,血管紧张素转换酶基因和G蛋白beta3亚基基因各自都是重要的原发性高血压的易感基因,并且可能存在共同的通路来导致高血压疾... 原发性高血压是一种复杂的多基因疾病,被认为是多个变异了的基因遗传交互以及环境因素共同作用的结果.证据表明,血管紧张素转换酶基因和G蛋白beta3亚基基因各自都是重要的原发性高血压的易感基因,并且可能存在共同的通路来导致高血压疾病的发展.为了探索这两个基因在中国北方汉族人群中是否对高血压有影响,挑选血管紧张素转换酶基因I/D多态与G蛋白beta3亚基基因C825T多态,在一个包含502个高血压病例和490个健康对照的样本中做了关联研究.连锁不平衡分析揭示,仅仅在男性中有显著性的非随机性分布,表明血管紧张素转换酶基因与G蛋白beta3亚基基因倾向在男性中造成高血压.调整了的单位点的多变量逐步回归分析展示,在男性显性模型中DD/ID对Ⅱ的比值比达到显著性水平(OR1.57;95%CI,1.09~2.27;P=0.016).在对性别进行分层后的联合分析中,在男性中经过调整后的比值比具有弱显著性水平:在血管紧张素转换酶基因的DD基因型中,TT对CC的比值比是0.11;95%CI,0.01~0.99;P=0.049;在G蛋白beta3亚基基因的CC+CT基因型中,DD/ID对Ⅱ的比值比是1.52;95%CI,1.01~2.29;P=0.047.结果暗示,血管紧张素转换酶基因或附近的某个基因是具有男性性别倾向的高血压易感侯选基因,同时,在血管紧张素转换酶基因基因的D等位基因和G蛋白beta3亚基基因的825C等位基因之间,可能存在具有上位效应的基因-基因相互作用. 展开更多
关键词 血管紧张素转换酶 g蛋白beta3亚基 相互作用 联合效应 高血压
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水稻蛋白质和直链淀粉含量的稳定性及G×E互作与气候因子的关系 被引量:4
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作者 黄元财 贾燕 +3 位作者 刘江 姜秀英 沈枫 李秀芬 《生态学杂志》 CAS CSCD 北大核心 2008年第11期1920-1925,共6页
利用AMMI模型,分析了辽宁省25个水稻品种的蛋白质(PC)和直链淀粉含量(AC)的稳定性,并对G×E互作与气候因子的关系及各品种的气候生态适应性进行了探讨。结果表明,PC和AC稳定性高的品种分别有V3(辽粳294)、V15(沈农9810)、V11(0157)... 利用AMMI模型,分析了辽宁省25个水稻品种的蛋白质(PC)和直链淀粉含量(AC)的稳定性,并对G×E互作与气候因子的关系及各品种的气候生态适应性进行了探讨。结果表明,PC和AC稳定性高的品种分别有V3(辽粳294)、V15(沈农9810)、V11(0157)等和品种V2(辽农49)、V13(沈农693)、V1(仙S38)等。温度和日照是影响G×E互作的主要气候因子,PC的气候适应性表明,品种V12(花粳49)和V9(沈农9819)对相对低温和寡照的环境有特殊适应性。各品种AC的气候适应性表明,品种V20(兴3号)、V21(东亚03-51)和V6(茂洋1号)分别对低温寡照、低温多日照和高温多日照的环境具有特殊适应性。 展开更多
关键词 水稻 蛋白质含量 直链淀粉含量 稳定性分析 g×e互作 气候因子
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水稻外观品质稳定性分析及G×E互作与气候因子的关系 被引量:3
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作者 李凤芹 贾燕 +3 位作者 李秀芬 刘江 姜秀英 沈枫 《种子》 CSCD 北大核心 2009年第4期24-29,共6页
基于AMM I模型,研究了25个水稻品种外观品质性状与环境的交互作用,并对参试品种垩白品质性状的稳定性、G×E互作与气候因子的关系及气候生态适应性进行了探讨。结果表明,稻米长、宽及长宽比的G×E互作效应差异不显著,垩白率和... 基于AMM I模型,研究了25个水稻品种外观品质性状与环境的交互作用,并对参试品种垩白品质性状的稳定性、G×E互作与气候因子的关系及气候生态适应性进行了探讨。结果表明,稻米长、宽及长宽比的G×E互作效应差异不显著,垩白率和垩白度的G×E互作效应达到了1%的显著水平。在此基础上将参试品种分为稳定性最好垩白适中、稳定性适中垩白较小及稳定性和垩白性状均较差三类。垩白品质性状的iPCA与水稻生育期内的气温、日照、降雨的相关分析表明气候因子是决定G×E互作的一项重要环境因子。据此得到不同品种对气候因子的最佳品质适应性,如品种V 9和V 24(沈农9819和0142)的垩白率对温度较低的环境,V 23(盐优5858)的垩白度对相对寡照高温的环境具有特殊适应性,在实际生产中选择与这些品种有负向互作的地点可获得较低的稻米垩白率和垩白度。 展开更多
关键词 水稻 外观品质 稳定性分析 g×e互作 气候因子
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应用GGE双标图进行向日葵杂交种产量稳定性分析 被引量:13
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作者 孙敏 蒋文敏 +3 位作者 李慧英 刘壮 于学鹏 张雷 《黑龙江农业科学》 2010年第9期11-13,共3页
采用GGE模型对2009年度全国向日葵杂交种区域试验数据资料进行统计分析,对参试品种的丰产性、稳产性做出了评价,结果表明:参试品种S18、S11和NX34250表现为高产、稳产,建议继续参加生产试验;S26和S086在白城、松原表现减产,其它地区增产... 采用GGE模型对2009年度全国向日葵杂交种区域试验数据资料进行统计分析,对参试品种的丰产性、稳产性做出了评价,结果表明:参试品种S18、S11和NX34250表现为高产、稳产,建议继续参加生产试验;S26和S086在白城、松原表现减产,其它地区增产,可继续参试;而UK301、B09-1、S02、NX44166表现不好,建设停止参试。 展开更多
关键词 gge双标图 向日葵 基因型×环境交互作用 稳定性分析
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壳白长牡蛎基因型与环境互作(G×E)效应分析 被引量:4
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作者 邢德 李琪 张景晓 《水产学报》 CAS CSCD 北大核心 2019年第2期474-482,共9页
为探索壳白长牡蛎品系的壳色性状和生长性状的基因型与环境互作(G×E)效应,利用巢氏设计构建全同胞家系,每个家系分成两组分别在乳山和荣成海域进行养殖。利用线性混合模型和REML法分析11月龄壳白长牡蛎生长性状和壳色性状的遗传力... 为探索壳白长牡蛎品系的壳色性状和生长性状的基因型与环境互作(G×E)效应,利用巢氏设计构建全同胞家系,每个家系分成两组分别在乳山和荣成海域进行养殖。利用线性混合模型和REML法分析11月龄壳白长牡蛎生长性状和壳色性状的遗传力及G×E效应。采用最佳线性无偏预测法(BLUP法)估计壳高和L~*两个性状的育种值,并通过加权获得综合育种值来筛选优良家系。结果显示,乳山组和荣成组的壳白长牡蛎生长和壳色性状的遗传力不同,分别为(0.14±0.08)~(0.62±0.18)和(0.01±0.03)~(0.78±0.19),可能存在尺度效应。以不同环境为固定效应,综合两个环境计算出的生长和壳色性状的遗传力为(0.02±0.02)~(0.51±0.09),然而由于部分全同胞家系缺失和模型不收敛的原因,估计模型中未包括母本/共同环境效应和显性效应,上述遗传力估计值偏高。本研究中生长和壳色性状在两个环境间的遗传相关为(–0.47±0.40)~(0.75±0.18),均小于0.8,表明壳白长牡蛎品系的生长和壳色性状都具有明显的重排效应,壳白长牡蛎品系其选育需要针对不同的养殖环境培育不同适应性的选育家系。综合育种值排名前20的个体其家系来源比例表明,家系G1和G21对于乳山海域表现出特殊的适应性,而家系G4、G22和G5对荣成海域环境具有特适性,家系G2则对两个环境具有普适性。研究为壳白长牡蛎品系的良种选育提供了重要的参考依据。 展开更多
关键词 长牡蛎 壳白 生长性状 壳色性状 基因型与环境互作(g×e)效应 育种值
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Yield stability and relationships among stability parameters in faba bean(Vicia faba L.) genotypes 被引量:4
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作者 Tamene Temesgen Gemechu Keneni +1 位作者 Tadese Sefera Mussa Jarso 《The Crop Journal》 SCIE CAS CSCD 2015年第3期258-268,共11页
Sixteen faba bean genotypes were evaluated in 13 environments in Ethiopia during the main cropping season for three years(2009–2011). The objectives of the study were to evaluate the yield stability of the genotypes ... Sixteen faba bean genotypes were evaluated in 13 environments in Ethiopia during the main cropping season for three years(2009–2011). The objectives of the study were to evaluate the yield stability of the genotypes and the relative importance of different stability parameters for improving selection in faba bean. The study was conducted using a randomized complete block design with four replications. G × E interaction and yield stability were estimated using 17 different stability parameters. Pooled analysis of variance for grain yield showed that the main effects of both genotypes and environments, and the interaction effect, were highly significant(P ≤ 0.001) and(P ≤ 0.01), respectively. The environment main effect accounted for 89.27% of the total yield variation, whereas genotype and G × E interaction effects accounted for 2.12% and 3.31%, respectively.Genotypic superiority index(Pi) and FT3 were found to be very informative for selecting both high-yielding and stable faba bean genotypes. Twelve of the 17 stability parameters,including CVi, RS, α, λ, S2 di, bi, S(2)i, Wi, σ2i, EV, P59, and ASV, were influenced simultaneously by both yield and stability. They should accordingly be used as complementary criteria to select genotypes with high yield and stability. Although none of the varieties showed consistently superior performance across all environments, the genotype EK 01024-1-2ranked in the top third of the test entries in 61.5% of the test environments and was identified as the most stable genotype, with type I stability. EK 01024-1-2 also showed a17.0% seed size advantage over the standard varieties and was released as a new variety in2013 for wide production and named "Gora". Different stability parameters explained genotypic performance differently, irrespective of yield performance. It was accordingly concluded that assessment of G × E interaction and yield stability should not be based on a single or a few stability parameters but rather on a combination of stability parameters. 展开更多
关键词 Faba BeAN g×e interaction RANK correlation STABILITY parameters Yield STABILITY
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Clustering Gene Expression Data Based on Predicted Differential Effects of GV Interaction 被引量:4
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作者 Hal-Yah Pan Jun Zhu Dan-Fu Han 《Genomics, Proteomics & Bioinformatics》 SCIE CAS CSCD 2005年第1期36-41,共6页
Microarray has become a popular biotechnology in biological and medical research. However, systematic and stochastic variabilities in microarray data are expected and unavoidable, resulting in the problem that the raw... Microarray has become a popular biotechnology in biological and medical research. However, systematic and stochastic variabilities in microarray data are expected and unavoidable, resulting in the problem that the raw measurements have inherent “noise” within microarray experiments. Currently, logarithmic ratios are usually analyzed by various clustering methods directly, which may introduce bias interpretation in identifying groups of genes or samples. In this paper, a statistical method based on mixed model approaches was proposed for microarray data cluster analysis. The underlying rationale of this method is to partition the observed total gene expression level into various variations caused by different factors using an ANOVA model, and to predict the differential effects of GV (gene by variety) interaction using the adjusted unbiased prediction (AUP) method. The predicted GV interaction effects can then be used as the inputs of cluster analysis. We illustrated the application of our method with a gene expression dataset and elucidated the utility of our approach using an external validation. 展开更多
关键词 gene expression clustering analysis predicting g V interaction effects
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