期刊文献+
共找到287篇文章
< 1 2 15 >
每页显示 20 50 100
Nutritional Composition, Physical Characteristics and Sanitary Quality of the Tomato Variety Mongol F1 from Burkina Faso 被引量:1
1
作者 Edwige B. Oboulbiga Charles Parkouda +3 位作者 Hagrétou Sawadogo-Lingani Ella W. R. Compaoré Abdoul Karim Sakira Alfred S. Traoré 《Food and Nutrition Sciences》 2017年第4期444-455,共12页
Tomato (Lycopersicon esculentum Mill) is quantitatively the highest vegetable consumed in Burkina Faso. The objective of this study was to evaluate the physico-chemical, nutritional characteristics, and sanitary quali... Tomato (Lycopersicon esculentum Mill) is quantitatively the highest vegetable consumed in Burkina Faso. The objective of this study was to evaluate the physico-chemical, nutritional characteristics, and sanitary quality of the tomato variety Mongal F1 from different production sites. Twenty-eight (28) samples of Mongal F1 fresh tomatoes were collected from 28 producers at three different localities of Ouahigouya, Loumbila and Ouagadougou. The physico-chemical and nutritional characteristics were determined by standardized methods and the traces metallic elements by atomic absorption spectrophotometry. The results revealed a degree brix varying from 4.07° to 5.50° and a pH ranging from 3.71 to 4.08 corresponding to a total acidity of 0.39% to 0.55% citric acid equivalents. The moisture content, the ash content, the total carbohydrates content, the reducing carbohydrates content, the lipids content and the protein content were ranged from 95.09% to 96.17%, 9.25% to 10.60%, 47.00% to 53.43%, 30.03% to 41.21%, 3.04% to 7.71% and 17.09% to 25.03% respectively. The results of the trace metals showed a high accumulation of total cadmium from 0.11 to 0.22 ppm, of total lead of 1.15 to 1.27 ppm and arsenic total of 0.19 to 0.20 ppm. The results proved that environmental conditions influence the quality of the tomato Mongal F1. Detection of trace elements in the tomato fruits suggests that a better production practices are needed. 展开更多
关键词 tomato Mongol f1 Characteristics NUTRIENT TRACE METAL
下载PDF
A study on the pathogen species and physiological races of tomato Fusarium wilt in Shanxi,China 被引量:7
2
作者 CHANG Yin-dong DU Bin +5 位作者 WANG Ling JI Pei XIE Yu-jie LI Xin-feng LI Zhi-gang WANG Jian-ming 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2018年第6期1380-1390,共11页
In order to clarify the main pathogens of tomato Fusarium wilt in Shanxi Province, China, morphological identification, elongation factor 1 alpha (EF-1α) sequence analysis, specific primer amplification and pathoge... In order to clarify the main pathogens of tomato Fusarium wilt in Shanxi Province, China, morphological identification, elongation factor 1 alpha (EF-1α) sequence analysis, specific primer amplification and pathogenicity tests were applied to study the isolates which were recovered from diseased plants collected from 17 different districts of Shanxi Province. The results were as follows: 1) Through morphological and molecular identification, the following 7 species of Fusarium were identified: F. oxysporum, F. solani, F. verticillioides, F. subglutinans, F. chlamydosporum, F. sporotrichioides, and F. semitectum; 2) 56 isolates of F. oxysporum were identified using specific primer amplification, among which, 29, 5 and 6 isolates were respectively identified as F. oxysporum f. sp. lycopersici physiological race 1, race 2, and race 3; 3) pathogenicity test indicated the significant pathogenicity of F. oxysporum, F. solani, F. verticillioides, and F. subglutinans to tomato plant. Therefore, among these 4 species confirmed as pathogenic to tomato in Shanxi, the highest isolation rate (53.3%) corresponded to F. oxysporum. Three physiological species, race 1, race 2, and race 3 of F. oxysporum f. sp. lycopersici are detected in Shanxi, among which race 1 is the most widespread pathogen and is also considered as the predominant race. 展开更多
关键词 tomato fusarium wilt fusarium oxysporum f. sp. lycopersici physiological races Ef-1α sequence analysis specific primer amplification
下载PDF
Hardness Genetic Analysis of Pink Hard-fruit Tomato
3
作者 Qingzhen YIN Liyong ZHANG +3 位作者 Guohua WANG Weiping YIN Lijuan QIE Fujiang ZHAO 《Agricultural Science & Technology》 CAS 2017年第1期35-40,共6页
Hardness genetic laws of pink hard-fruit tomato were studied for breeding new varieties of pink hard-fruit tomato. The change of hardness degree and heredi- tary characters of tomato were studied using the texture ana... Hardness genetic laws of pink hard-fruit tomato were studied for breeding new varieties of pink hard-fruit tomato. The change of hardness degree and heredi- tary characters of tomato were studied using the texture analyzer, with female parents P27, male parents P31 and tomato F1 combination 15# as the test materials. The result showed that transverse hardness was the lowest, followed by longitudinal hardness, and the hardness of fruit shoulder was the highest. The average hardness at green fruit stage was higher, the hardness at turning-color period and red ripe stage decreased significantly. The average hardness of P27, P31, F1 combination 15# at red ripe fruit was 13.27, 10.88, 12.28 N, respectively. The hardness at red fruit stage and green fruit stage had significantly positive correlation. Fruit shape index of F1 combinations 15#at red ripe stage was 0.87. The fruit shape was round with 5-6 locules. The pericarp thickness was 0.7-0.8 cm. The single fruit weight was 258 g. It was the ideal bred variety for pink hard-tomato fruit. There was no necessary connection among fruit hardness and fruit size, pericarp thickness, ventricle numbers, single fruit weight. Fruit shape index could be used as indirect selection index of the hardness of tomato. 展开更多
关键词 tomato f1 combination female parents Male parents HARDNESS Texture analyzer HEREDITY
下载PDF
蒙古冰草×航道冰草杂种F1代组织培养再生体系建立
4
作者 杨东升 卢倩倩 +2 位作者 丁伟 王志宇 王志鹏 《种子》 北大核心 2024年第9期135-140,共6页
以蒙古冰草×航道冰草种间杂种F1代幼穗为外植体,对影响愈伤组织诱导、分化和生根的激素浓度进行筛选,并建立了完整植株的再生体系。结果表明,杂种F1代的最适愈伤组织诱导培养基为MS+2,4-二氯苯氧乙酸(2,4-D)1.5 mg/L+6-苄氨基嘌呤(... 以蒙古冰草×航道冰草种间杂种F1代幼穗为外植体,对影响愈伤组织诱导、分化和生根的激素浓度进行筛选,并建立了完整植株的再生体系。结果表明,杂种F1代的最适愈伤组织诱导培养基为MS+2,4-二氯苯氧乙酸(2,4-D)1.5 mg/L+6-苄氨基嘌呤(6-BA)0.3 mg/L,出愈率为81.7%;愈伤组织分化的培养基为6-BA 2.5 mg/L+萘乙酸(NAA)0.4 mg/L,分化率为71.7%;生根培养基为1/2 MS+NAA 0.2 mg/L,生根率为88.3%。经炼苗后,各基质移栽成活率大于90%。本研究通过建立蒙古冰草×航道冰草杂种F1代组织培养再生体系,为有效保存冰草杂种F1代新种质,并为后期秋水仙碱诱导其染色体加倍恢复育性奠定基础。 展开更多
关键词 蒙古冰草 航道冰草 杂种f1 幼穗 再生体系
下载PDF
A New Towel Gourd F_1 hybrid——‘Taisi NO.3'
5
作者 冯春梅 赵永彬 +2 位作者 陈海平 王娇阳 屈为栋 《Agricultural Science & Technology》 CAS 2016年第10期2277-2279,共3页
'Taisi N0.3' is an early mid-maturing towel gourd F1 hybrid developed by crossing Ps17-6-5-2-10-8 as female parent and Ps39-3-8-4-6-5 as male parent. The period from sowing to first harvest is about 75 days in sprin... 'Taisi N0.3' is an early mid-maturing towel gourd F1 hybrid developed by crossing Ps17-6-5-2-10-8 as female parent and Ps39-3-8-4-6-5 as male parent. The period from sowing to first harvest is about 75 days in spring cropping. It grows exuberantly in early stage and better in middle and later stages; leaves are green and palmately divided; the maximum leaf's length and width are about 25.5 and 33.7 cm. It bears fruit at the main and lateral branch. The first female flower sets on the 7^th-8^th node, and the fruit-setting rate is 72.8%. The fruit-setting rate is high. Its fruit is long round stick shape, 47.4 cm in length, and 3.75 cm in width, with smooth and green skin covered by dark green stripes, dense flesh. The fruit tastes good, with high Vc content. It is resistant to downy mildew, moderately resistant to CMV, and highly resistant to blight. The average fruit weight is about 282.3 g with the general yield of 82 500 kg/hm2. 展开更多
关键词 Towel gourd Taisi no.3 f1 hybrid
下载PDF
设施栽培番茄新品种闽农科1号的选育
6
作者 张前荣 林珲 +6 位作者 裘波音 叶新如 刘建汀 李永平 李大忠 温庆放 朱海生 《中国瓜菜》 CAS 北大核心 2024年第9期170-173,共4页
闽农科1号是以自交系SH5-3-1-1-1-1-1为母本、SH2-1-1-1-1-1-1为父本选育而成的杂交1代高抗设施型番茄新品种。该品种为无限生长类型,植株长势强,单式花序为主,始花节位7~11节,坐果能力强。单果质量170~210 g,果实近圆形,完熟果大红色,... 闽农科1号是以自交系SH5-3-1-1-1-1-1为母本、SH2-1-1-1-1-1-1为父本选育而成的杂交1代高抗设施型番茄新品种。该品种为无限生长类型,植株长势强,单式花序为主,始花节位7~11节,坐果能力强。单果质量170~210 g,果实近圆形,完熟果大红色,无绿肩,有鲜艳色泽,畸裂果率低,硬度高。果实可溶性固形物含量(w,后同)4.4%、番茄红素含量3.70 mg·100 g^(-1)、维生素C含量10.60 mg·100 g^(-1)、总糖含量2.6 g·100 g^(-1)、总酸含量6.11 g·100 g^(-1)、蛋白质含量2.53 g·100 g^(-1)。667 m2产量5000 kg以上,高抗番茄黄化曲叶病毒病(TYLCV)、枯萎病和根结线虫病等病害,适宜于福建省秋冬季设施栽培。2020年9月通过农业农村部非主要农作物品种登记。 展开更多
关键词 番茄 新品种 闽农科1 杂交1
下载PDF
樱桃番茄新品种‘宁樱红1号’的选育
7
作者 赵云霞 颜秀娟 +1 位作者 杨冬艳 韩道杰 《北方园艺》 CAS 北大核心 2024年第8期157-160,共4页
‘宁樱红1号’樱桃番茄是以411为母本,以1411为父本选育的樱桃番茄一代杂交种,无限生长型,生长势强,节间短,成熟早,多歧花序,单花序坐果数12~25个,果圆桃心形,成熟果亮红色,单果质量约20 g,可溶性固形物含量10.23%,番茄红素含量0.11 mg&... ‘宁樱红1号’樱桃番茄是以411为母本,以1411为父本选育的樱桃番茄一代杂交种,无限生长型,生长势强,节间短,成熟早,多歧花序,单花序坐果数12~25个,果圆桃心形,成熟果亮红色,单果质量约20 g,可溶性固形物含量10.23%,番茄红素含量0.11 mg·g^(-1),维生素C含量0.47 mg·g^(-1),心室数多为2个,口感甜,汁多,坐果能力强,颜色亮丽,含有叶霉病抗性基因Cf5、灰叶斑抗性基因Sm、晚疫病抗性基因ph3、疮痂病抗性基因Rx4、黄萎病抗性基因Ve1、Ve2,果实耐裂;适合露地,冬春茬温室和早春、秋延大拱棚,667 m2产量3400~4000 kg。 展开更多
关键词 樱桃番茄 ‘宁樱红1号’ 高品质 杂交一代
下载PDF
樱桃番茄新品种珍味1号的选育
8
作者 何秀萍 胡继军 +1 位作者 邰连赛 刘杨 《中国蔬菜》 北大核心 2024年第2期116-118,共3页
珍味1号是以自交系W-1-3-1-4为母本,以B-1-2-1-2-1为父本配制而成的粉红果樱桃番茄一代杂种。早熟,无限生长类型,植株生长势较强,叶量较少,以多岐花序为主;成熟果粉红色,幼果有绿果肩,果实短椭圆形,口味酸甜,可溶性固形物含量9.5%,番茄... 珍味1号是以自交系W-1-3-1-4为母本,以B-1-2-1-2-1为父本配制而成的粉红果樱桃番茄一代杂种。早熟,无限生长类型,植株生长势较强,叶量较少,以多岐花序为主;成熟果粉红色,幼果有绿果肩,果实短椭圆形,口味酸甜,可溶性固形物含量9.5%,番茄红素含量66.2 mg·kg^(-1),VC含量289.3 mg·kg^(-1);坐果能力强,平均单果质量18 g,6穗果后留2片叶摘心,每667 m^(2)前期产量850 kg左右,总产量3300 kg左右,高抗黄瓜花叶病毒病(CMV)、枯萎病,中抗烟草花叶病毒病(TMV)、番茄黄化曲叶病毒病(TYLCV),适合上海、江苏、浙江地区春季保护地种植。 展开更多
关键词 樱桃番茄 珍味1 一代杂种
下载PDF
Electrophoretic Analysis of Isozymes and Proteins in F_1 Hybrids of Ctenopharyngodon idellus ♀ × Elopichthys bambusa ♂
9
作者 Laining YU Xiaoping XIA +2 位作者 Dong YANG Hongyan LIU Fanrong ZHANG 《Agricultural Biotechnology》 CAS 2015年第1期44-47,51,共5页
[ Objective] This study aimed to investigate the biochemical and genetic characteristics of F1 hybrids of Ctenopharyngodon idellus ♀× Elopichthys bambusa ♂ - [ Method ] By using vertical polyacrylamide gel elec... [ Objective] This study aimed to investigate the biochemical and genetic characteristics of F1 hybrids of Ctenopharyngodon idellus ♀× Elopichthys bambusa ♂ - [ Method ] By using vertical polyacrylamide gel electrophoresis technology, three isozymes (LDH, EST, MDH) in nine tissues (heart, brain, eyes, liver, kidney, spleen, fin, muscle, plasma) of F1 hybrids of C. ideUus and parents were compared. [Result] Three isozymes in F1 hybrids of ♀× E. bambusa ♀ were analyzed; differences in isozyme and proteins between F1 hybrids idellus ♀× E. bambusa ♀ exhibited varying degrees of tissue-specificity; isozymes and proteins in F, hybrids were signiticandy different from the parents. [ Conclusion] These nine differences could be used as indicators to identify F1 hybrids and parents. 展开更多
关键词 Grass carp Ctenopharyngodon idellus) Elopichthys bambusa f1 hybrids ISOZYMES PROTEINS
下载PDF
Analysis of Protein and Isoenzyme of LiLum davidii var.unicolor,Lilium Asiatic Hybrids and Their Hybrid F_1 被引量:1
10
作者 李雪 杨彩玲 +2 位作者 张鸣 霍彩霞 朱彦荣 《Agricultural Science & Technology》 CAS 2011年第1期54-57,共4页
[Objective]The paper was to provide theoretical basis for selection of parental combination and early identification of hybrids.[Method]The soluble protein and peroxidase of LiLum davidii var.unicolor,Lilium Asiatic h... [Objective]The paper was to provide theoretical basis for selection of parental combination and early identification of hybrids.[Method]The soluble protein and peroxidase of LiLum davidii var.unicolor,Lilium Asiatic hybrids and their filial generations were analyzed using polyacrylamide gel electrophoresis technique.[Result]The protein spectrum of filial generation with L.davidii var.unicolor as parent not only appeared the homologous band as parent with darker coloring,but also had new bands compared with parent.Peroxidase zymogram of hybrid F1 mainly displayed incomplete complementary and hybrid type of parent.[Conclusion]Protein spectrum and peroxidase zymogram could be used as the biochemical markers for the identification of hybrids of lily,which could also detect the target traits of plant. 展开更多
关键词 LiLum davidii var.unicolor Lilium Asiatic hybrids hybrid f1 PROTEIN PEROXIDASE
下载PDF
Genotypic Resistance of F_1 Cotton Hybrids by Inoculation with Different Virulent Isolates of the Fungus Verticillium Dahliae Klebahn
11
作者 AMANTURDIEV Alisher KIM Robert 《棉花学报》 CSCD 北大核心 2008年第S1期107-,共1页
The plant pathogen Verticillium dahliae causes severe cotton losses in Uzbekistan. To create cotton varieties that are resistant to the more virulent races of V.dahliae we wanted to determine
关键词 Genotypic Resistance of f1 Cotton hybrids by Inoculation with Different Virulent Isolates of the fungus Verticillium Dahliae Klebahn
下载PDF
Anther Culture about Hybrid F_1 by Solanum torvum SW.(♂) × Solanum melongena L.(♀)
12
作者 王益奎 王红 +6 位作者 方岩岩 王艳娜 李文嘉 黎炎 吴永官 蒋雅琴 康德贤 《Agricultural Science & Technology》 CAS 2015年第4期645-648,711,共5页
Objective] This study was conducted to investigate the effects of different hormone combinations and concentrations on cal us induction and pIant regeneration of F1 hybrid of Solanum torvum SW. &#215; Solanum melonge... Objective] This study was conducted to investigate the effects of different hormone combinations and concentrations on cal us induction and pIant regeneration of F1 hybrid of Solanum torvum SW. &#215; Solanum melongena L. [Method] Media suppIemented with different combinations and concentrations of hormones were pre-pared for anther cal us induction, proIiferation, differentiation and regeneration. [Re-sult] MS+1.0 m/L 2, 4-D+0.5 mg/L 6-BA was the optimum medium for anther cal us induction. MS+1.0 mg/L KT+0.1 mg/L NAA was the optimum medium for cal us proIiferation. MS+2.0 mg/L 6-BA+0.3 mg/L NAA was the optimum medium for in-duction of adventitious buds. MS+0.3 mg/L IAA was the optimum medium for root-ing of adventitious buds. The highest rooting rate was onIy 37.5 because induction of rooting was a difficuIt work. [Conclusion] The resuIts wiI provide references for outcross fertiIity and genetic improvement of eggpIant. 展开更多
关键词 f1 hybrid Anther cuIture HORMONE
下载PDF
樱桃番茄新品种紫小可1号的选育
13
作者 王宁东 邵桥 +2 位作者 余芳洁 史鹏祥 吴新胜 《中国瓜菜》 CAS 北大核心 2024年第2期133-137,142,共6页
紫小可1号是以浙樱BC紫圆102为母本、以凤BCGZ411为父本配制而成的樱桃番茄杂交1代新品种。该品种为无限生长类型,表现为早熟,浙江早春栽培生育期135 d,主茎第9~第11片叶着生第一花序,花黄色,果实椭圆形、棕紫色,单果质量15.0 g,可溶性... 紫小可1号是以浙樱BC紫圆102为母本、以凤BCGZ411为父本配制而成的樱桃番茄杂交1代新品种。该品种为无限生长类型,表现为早熟,浙江早春栽培生育期135 d,主茎第9~第11片叶着生第一花序,花黄色,果实椭圆形、棕紫色,单果质量15.0 g,可溶性固形物含量(w)9.0%,肉质细嫩,风味较好,667 m2产量3892.1 kg。适宜在华东地区春季保护地栽培,采收期为4月下旬至6月上旬。2023年通过农业农村部非主要农作物品种登记。 展开更多
关键词 樱桃番茄 新品种 紫小可1 杂交1
下载PDF
Transcriptome and metabolome profiling of unheading in F1 hybrid rice
14
作者 WANG Jie WEIS hao-bo +7 位作者 WANG Chun-chao Najeeb Ullah KHAN ZHANG Zhan-ying WANG Wen-sheng ZHAO Xiu-qin ZHANG Hong-liang LI Zi-chao GAO Yong-ming 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2020年第10期2367-2382,共16页
Heading date is a crucial agronomic trait.However,rice usually delays heading due to the photoperiod,temperature,hormones or age.The present research was conducted to analyze the mechanism cotrlling heading date in F,... Heading date is a crucial agronomic trait.However,rice usually delays heading due to the photoperiod,temperature,hormones or age.The present research was conducted to analyze the mechanism cotrlling heading date in F,hybrid rice.We constructed two test-crossing populations using two introgression lines(ILs),P20 and P21 coming from SH527/FH838 as the male parent,respectively,and male sterile line Jin23A as the female parent.Meanwhile,the F,hybrids of H20,obtained by mating P20 with Jin23A and having no heading,and H21,from the crossing between P21 and Jin23A having normal heading,were both observed under long days.Here,we analyzed the photoperiodic response of F,hybrids by transcriptome and metabolome profiling.The greater differences displayed in the transcriptome and the metabolome were caused by photoperiod(exogenous)instead of genes(endogenous).The coping mechanism resulted from long days(LD)in H20,leading to differences in the circadian rhythm and glutathione metabolism relative to other samples.The circadian oscillator and GSH/GSSG cycle typically regulate ROS homeostasis,and both of them are responsible for modulating ROS in H20 under LD condition.Both circadian rhythm genes and the reported genes related to heading date function via the DHD1/OsMFT1-Ehd1-RFT1-OsMADS14/OsMADS18 pathway and the glutathione metabolism pathway by regulating oxidative reduction processes.Both pathways are involved in the heading process and they interacted through the oxidative reduction process which was induced by photoperiod regulation,and all of them collectively modulated the heading process.The results of this study will be helpful for unraveling the mechanism of F,hybrid responses to unheading under LD condition. 展开更多
关键词 f1hybrid rice unheading transcriptome profiles metabolome profiles
下载PDF
抗TYLCV番茄新品种青恋1号的选育 被引量:1
15
作者 胡京昂 张丽霞 +4 位作者 李自娟 应芳卿 黄文 周涛 田朝辉 《中国蔬菜》 北大核心 2023年第1期104-106,共3页
青恋1号是以W44-3-1-16-7为母本,以KG52-2-5-2-6-8为父本配制而成的番茄一代杂种。无限生长类型,早熟,果实圆形,幼果有深绿果肩,果实完全成熟后为粉红色,单果质量120~150 g。糖酸比9.0,VC含量250 mg·kg^(-1),可溶性固形物含量5.7%... 青恋1号是以W44-3-1-16-7为母本,以KG52-2-5-2-6-8为父本配制而成的番茄一代杂种。无限生长类型,早熟,果实圆形,幼果有深绿果肩,果实完全成熟后为粉红色,单果质量120~150 g。糖酸比9.0,VC含量250 mg·kg^(-1),可溶性固形物含量5.7%,番茄红素含量52.0 mg·kg^(-1),含有ty-3a基因,抗番茄黄化曲叶病毒病,耐运输。每667 m^(2)前期产量1700 kg左右,总产量5300 kg左右,适合河南、山东等北方地区早春及越冬种植。 展开更多
关键词 番茄 青恋1 抗TYLCV 一代杂种
下载PDF
Preliminary Report on the Breeding of F_1 Hybrid Between Broccolini with High Sulforaphane
16
作者 李向阳 刘振翔 +4 位作者 刘自珠 郑岩松 张华 李光光 黄红弟 《Agricultural Science & Technology》 CAS 2015年第8期1672-1675,共4页
Through the use of broccolini innovation resources, a group of unique ex- cellent broccolini and male sterile lines, as well as inbred lines were bred. In the research, 4 hybrid strains were bred by the use of male st... Through the use of broccolini innovation resources, a group of unique ex- cellent broccolini and male sterile lines, as well as inbred lines were bred. In the research, 4 hybrid strains were bred by the use of male sterile lines which had vigorous growth, high resistance, good quality, good commodity and high yield, in- cluding Beauty No.l, Beauty No.2, Beauty No.3, Beauty No.4. The results showed that Beauty No.2 behaved the best comprehensive characters of high yield, high commercial value and good taste. The yield of Beauty No.2 was 28 185 kg/hm2 and 25% higher than the control Qianxiu, the sulforaphane content was as high as 48 mg/kg and 77.8%, 272.1% higher than the control of Qianxiu and Manuolv broc- coli, respectively. The comprehensive character of Beauty No.1 ranked the second, the yield was the highest (29 265 kg/hm2) and 30% than the control Qianxiu. 展开更多
关键词 Broccolini Male sterility f1 hybrid BREEDING SULfORAPHANE
下载PDF
利用PCR技术同时检测番茄抗根结线虫基因(Mi-1)和抗叶霉病基因(Cf-9) 被引量:20
17
作者 周国治 叶青静 +2 位作者 杨悦俭 王荣青 阮美颖 《浙江大学学报(农业与生命科学版)》 CAS CSCD 北大核心 2008年第2期163-168,共6页
利用同一PCR反应体系,对分别与番茄抗根结线虫的Mi-1基因和抗番茄叶霉病的Cf-9基因紧密连锁的CAPS(cleaved amplified polymorphic sequences)标记进行同时扩增筛选,扩增的特异性片段与单引物扩增片段吻合.与Cf-9基因紧密连锁的CAPS1标... 利用同一PCR反应体系,对分别与番茄抗根结线虫的Mi-1基因和抗番茄叶霉病的Cf-9基因紧密连锁的CAPS(cleaved amplified polymorphic sequences)标记进行同时扩增筛选,扩增的特异性片段与单引物扩增片段吻合.与Cf-9基因紧密连锁的CAPS1标记在抗病试材中可扩增出2775bp的特异片段,且存在TaqⅠ酶切位点,酶切后产生1177bp、446bp、370bp和160bp的不同特异片段;与Mi-1基因紧密连锁的CAPS2为共显性标记,抗性材料中产生915bp的特异片段,TaqⅠ酶切后产生719bp和196bp的特异片段.该体系可用于在同一PCR反应体系中对Mi-1和Cf-92个抗病基因进行同时筛选鉴定.该体系的建立不仅省时、省工,节省费用,而且可用于苗期早期辅助选育,加快番茄育种进程. 展开更多
关键词 番茄 Mi-1 Cf-9 分子标记
下载PDF
草鱼×赤眼鳟F_1 与其亲本遗传性状的比较研究 被引量:14
18
作者 金燮理 金宏 +1 位作者 王明龙 郑陶生 《生命科学研究》 CAS CSCD 1999年第4期316-320,共5页
采用生物统计方法,对草鱼、赤眼鳟及其杂种一代(草♀×赤♂、草♂×赤♀)的10 个数量性状进行统计分析,结果显示草♂×赤♀杂种的性状表现了明显的趋父性遗传,而草♀×赤♂杂种则表现了明显的趋母性遗传.用杂... 采用生物统计方法,对草鱼、赤眼鳟及其杂种一代(草♀×赤♂、草♂×赤♀)的10 个数量性状进行统计分析,结果显示草♂×赤♀杂种的性状表现了明显的趋父性遗传,而草♀×赤♂杂种则表现了明显的趋母性遗传.用杂种指数衡量,在所测量的7 个性状中,有5 个偏向草鱼,只有体长/体高和脊椎骨数2 个性状偏向赤眼鳟.这表明草鱼与赤眼鳟的杂交后代(F1)数量性状遗传受草鱼遗传因子的影响较大. 展开更多
关键词 草鱼 赤眼鳟 杂交 f1 遗传性状
下载PDF
鹅掌楸属种间F_1杂种与亲本的叶下表皮微形态研究 被引量:11
19
作者 叶金山 王章荣 《林业科学》 EI CAS CSCD 北大核心 1998年第3期47-50,共4页
鹅掌楸属种间正、反交F1杂种及双亲的扫描电镜(SME)观察表明:马褂木和反交F1的下表皮细胞具明显乳突,北美鹅掌楸和正交F1则呈现平坦状;北美鹅掌楸和正交F1下表皮气孔密度显著高于马褂木与反交F1;杂种与双亲的下表皮... 鹅掌楸属种间正、反交F1杂种及双亲的扫描电镜(SME)观察表明:马褂木和反交F1的下表皮细胞具明显乳突,北美鹅掌楸和正交F1则呈现平坦状;北美鹅掌楸和正交F1下表皮气孔密度显著高于马褂木与反交F1;杂种与双亲的下表皮蜡质纹饰和气孔器形态没有表现出明显差异;正、反交F1的气孔开口明显大于双亲。 展开更多
关键词 鹅掌楸 f1杂种 叶下表皮 微形态
下载PDF
红果番茄新品种陇番14号的选育
20
作者 胡志峰 邵景成 +1 位作者 张莉 王萍 《中国蔬菜》 北大核心 2023年第4期107-109,共3页
陇番14号是以自交系13117为母本,以自交系13118为父本配制而成的中晚熟番茄一代杂种。无限生长类型,生长势较旺;第1花序节位为第7~9节,花序间隔3~5节;果实圆形、红色,无绿果肩,平均单果质量170.5 g;果实硬度2.09 kg·cm^(-2),畸裂果... 陇番14号是以自交系13117为母本,以自交系13118为父本配制而成的中晚熟番茄一代杂种。无限生长类型,生长势较旺;第1花序节位为第7~9节,花序间隔3~5节;果实圆形、红色,无绿果肩,平均单果质量170.5 g;果实硬度2.09 kg·cm^(-2),畸裂果率2.89%;可溶性固形物含量5.12%,VC含量90.2 mg·kg^(-1),有机酸含量3.9 g·kg^(-1);高抗TMV,抗TYLCV、叶霉病,耐早疫病,每667 m^(2)产量7 000 kg左右,适宜甘肃早春茬设施栽培。 展开更多
关键词 番茄 陇番14号 一代杂种
下载PDF
上一页 1 2 15 下一页 到第
使用帮助 返回顶部