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A Preliminary Study on the Relationship Between the Indica-Japonica RAPD Differentiation of Parents and Heterosisin Dian Type Hybrid Rice 被引量:2
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作者 LONG Wen-hong , XU Ming-hui and ZHANG Shu-hua(College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201 , P. R. China Institute of Biotechnology , Yunnan Academy of Agricultural Sciences , Kunming 650223 , P. R. China Rice Research Institute, Yunnan Agricultural University , Kunming 650201 , P. R. China) 《Agricultural Sciences in China》 CAS CSCD 2002年第12期1303-1309,共7页
The relationship between the indica-japonica differentiation of parents and heterosis of hybrid in rice was studied with 10 sterile lines, 10 maintainer lines of the sterile lines, 38 restorer lines of Dian type hybri... The relationship between the indica-japonica differentiation of parents and heterosis of hybrid in rice was studied with 10 sterile lines, 10 maintainer lines of the sterile lines, 38 restorer lines of Dian type hybrid rice and 40 hybrids derived from the sterile lines and restorer lines. The results indicated that there was a parabolic correlation between the indica-japonica differentiation of parents detected by RAPD markers and heterosis of hybrid rice. When certain indica-japonica differentiation of parents exists, the percentage of combinations with positve heterosis and the mean heterosis of hybrids were high. But that didn't mean too much difference of parents could lead to stronger hetesosis, that meant overdiffernt parents seldom bring positve het-erotic hybrids. Suitable difference of percent of indica alleles of parents of stronger heterotic hybrid was 12 -16%. 展开更多
关键词 Dian type hybrid rice indica-japonica differentiation heterosis RAPD
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The Relation between Genetic Difference for Parents of Hybrid Rice and Heterosis
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作者 Xudong Zhu Xieli Tong +3 位作者 Ju Zhao Ziliang Zhu Dan Zhu Qingming Zhou 《Agricultural Sciences》 CAS 2023年第4期485-498,共14页
Exploring the indica-japonica differentiation in parents of hybridization can provide theoretical bases for utilizing inter-subspecific heterosis. In this study, 5 sterile lines and 18 self-bred restorer lines were us... Exploring the indica-japonica differentiation in parents of hybridization can provide theoretical bases for utilizing inter-subspecific heterosis. In this study, 5 sterile lines and 18 self-bred restorer lines were used as female parents and male parents respectively. Then 90 combinations were constructed by incomplete diallel cross followed by relationship analysis between parental Cheng’s index difference value and Euclidean distance and heterosis. The results showed a significant correlation between several phenotype values, super male parent heterosis and control heterosis and Euclidean distance or Cheng’s index difference value. However, it was no significant correlation for yield. Further analysis found a common interval, 3.41 - 3.46 for Euclidean distance and 3 - 4 for cheng’s index difference value of parents, which was significant or high significant positive correlated with phenotype value, super male parent and control heterosis of main yield traits. This illustrates that the larger the genetic difference of parents was, the stronger the heterosis combinations were, when the genetic differences of parents were in an appropriate range. 展开更多
关键词 indica and japonica Subspecies heterosis Cheng’s Index Euclidean Distance
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Relationships of Panicle Type Index with Subspecies Characteristics and Yield Traits in Filial Generation of Crosses between Indica and Japonica Rice
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作者 Xu Hai ZHU Chun-jie +7 位作者 Guo Yan-hua Xu Quan MAO Ting CHEN Kai WANG Jia-yu YANG Li ZHENG Jia-kui Xu Zheng-jin 《Rice science》 SCIE 2010年第2期149-155,共7页
Two recombinant inbred line (RIL) populations, one derived from a cross between Zhongyouzao 8 (indica) and Toyonishiki (japonica) and the other from a cross between Qishanzhan (indica) and Akihikari (japonica... Two recombinant inbred line (RIL) populations, one derived from a cross between Zhongyouzao 8 (indica) and Toyonishiki (japonica) and the other from a cross between Qishanzhan (indica) and Akihikari (japonica), were grown in Liaoning and Sichuan Provinces, China, to study the panicle type index (PTI, the ratio of a number of node position on panicle axis where the secondary branch with the most numerous secondary branch grains is located to the number of primary branches) and its relationships with subspecies characteristics and yield traits. With continuous distribution of PTI and numerous of lines with different PTIs in the progenies, indica-japonica hybridization could be a method for breeding cultivars with ideal panicle type. PTI was significantly influenced by environments, with a significant decrease from Liaoning to Sichuan A significantly negative correlation was found between PTI and most of subspecies characteristics. PTI varied remarkably with different subspecies types. As a whole, it showed a trend of indica (H)〉indicalinous (H')〉japonicalinous (K')〉japonica (K) However, it is not appropriate to regard PTI as a parameter for subspecies classification in rice because it was recombined in the filial generations of cross between indica and japonica rice. The negative correlations were found between PTI and most of panicle characteristics, as well as yield-related traits. Based on PTI, most of lines from the two populations were middle dominant panicle type (the number of grains on the secondary branch is numerous in middle position of the panicle) and lower dominant panicle type (the number of grains on the secondary branch is numerous in lower position of the panicle and becomes less towards the top of panicle) with significant yield advantages. 展开更多
关键词 RICE indica-japonica hybridization panicle type index subspecies characteristics yield trait RELATIONSHIP
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Studies on the Growth Habits and Characteristics of Two Polyploid Indica-Japonica Hybrid Rice with Powerful Heterosis
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作者 SONG Zhao-jian DU Chao-qun DAI Bing-cheng CHEN Dong-ling CHEN Jian-guo CAI De-tian 《Agricultural Sciences in China》 CAS CSCD 2007年第3期265-274,共10页
Based on a series of polyploid indica-japonica hybrid plant lines obtained from a new breeding strategy of using double predominance of wide cross and polyploidization to breed super flee, two polyploid indica-japonic... Based on a series of polyploid indica-japonica hybrid plant lines obtained from a new breeding strategy of using double predominance of wide cross and polyploidization to breed super flee, two polyploid indica-japonica hybrids, PSR073 and PSR120 were studied in their growth periods to show the powerful heterosis in a larger scale and to study the characteristics of polyploid indica-japonica hybrids more elaborately. The leaf age, tiller growth, flowering habits, and agronomic traits of them were observed to analyze their growth habits and characteristics. The results showed that the.agronomic traits of PSR073 and PSR120, such as the plant height, panicle length, grain length, grain width, and 1000-grain weight, all acquired obvious predominance of polyploidy, and that the seed setting rate was more than 83%. No significant difference was observed between the two tetraploids and common diploids in the leaf age, tiller growth, and flowering habits. It was concluded that the characteristics of the two powerful heterosis polyploid hybrids were different from those of the polyploid rice reported earlier. Wide cross and polyploidization had no negative effects on their growth habits and characteristics; on the contrary these had powerful heterosis. This had provided theoretic and practical evidences for their application to agricultural production. 展开更多
关键词 POLYPLOID indica-japonica hybrids growth habits and characteristics heterosis seed setting rate
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Effect of Environment and Genetic Recombination on Subspecies and Economic Trait Differentiation in the F_2 and F_3 Generations from indicajaponica Hybridization
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作者 WANG He-tong JIN Feng +7 位作者 JIANG Yi-jun LIN Qing-shan XU Hai CHENG Ling XIA Ying-jun LIU Chun-xiang CHEN Wen-fu XU Zheng-jin 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2014年第1期18-30,共13页
indica and japonica are the two most important subspecies of Asian cultivated rice. Identifying mechanisms responsible for population differentiation in these subspecies is important for indica-japonica hybridization ... indica and japonica are the two most important subspecies of Asian cultivated rice. Identifying mechanisms responsible for population differentiation in these subspecies is important for indica-japonica hybridization breeding. In this study, subspecies and economic trait differentiation patterns were analyzed using morphological and molecular (InDel and Intron Length Polymorphism) data in F2 and F3 populations derived from indica-japonica hybridization. Populations were grown in Liaoning and Guangdong provinces, China, with F3 populations generated from F2 populations using bulk harvesting (BM) and single-seed descent methods (SSD). Segregation distortion was detected in F3-BM populations, but not in F3- SSD or in F2 populations. Superior performance was observed with respect to economic traits in Liaoning compared with that in Guangdong and 1 000-grain weight (KW), seed setting rate (SSR) and grain yield per plant (GYP) were significantly correlated with indica and japonica subspecies types. Analysis of molecular and morphological data demonstrated that the environment is the main factor giving rise to population differentiation in indica-japonica hybridization. In addition, we also found that KW, SSR and GYP are related to subspecies characteristics and kinship, which is possibly a significant factor resulting in economic trait differentiation and determining environmental adaptability. Our study has provided new insights into the process of population differentiation in these subspecies to inform indica-japonica hybridization breeding. 展开更多
关键词 indica-japonica hybridization subspecies differentiation environment economic traits recombinant inbred line rice
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QTL analysis of the rice seedling cold tolerance in a double haploid population derived from anther culture of a hybrid between indica and japonica rice 被引量:18
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作者 QIAN Qian ZENG Dali +3 位作者 HE Ping ZHENG Xianwu CHEN Ying ZHU Lihuang 《Chinese Science Bulletin》 SCIE EI CAS 2000年第5期448-453,共6页
A doubled haploid population, derived from anther culture of F hybrid between a typical indica cv. and a japonica cv. has been used to investigate the seedling cold tolerance (SCT) in growth cabinet. By dynamically an... A doubled haploid population, derived from anther culture of F hybrid between a typical indica cv. and a japonica cv. has been used to investigate the seedling cold tolerance (SCT) in growth cabinet. By dynamically analyzing every day’s survival percentages of the parents and DH lines under 7-d cold plus 9-d normal temperature condition, the guantitative trait loci (QTLs) for SCT have been mapped based on a molecular linkage map constructed from this population. The results show that two parents had significant differences in SCT and the segregation of SCT in DH lines was basically a continuous distribution with most serious injury on the 6th d of the cold treatment. A total of 4 QTLs for SCT have been identified on chromosomes 1, 2, 3 and 4 respectively. The additive effects of qSCT-1, qSCT-2 and qSCT-3 have been contributed by the japonica ev JX17, but that of qSCT-4 has been contributed by the indica cv ZYQ8. The mechanism of SCT seems complicated since the above 4 QTLs detected at different stages 展开更多
关键词 indica and japonica SUBSPECIES DH POPULATION seedling cold tolerance QTL detection.
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Status and Prospects of Hybrid Rice Breeding in Jiangsu, China 被引量:2
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作者 WANG Cai-lin 《Rice science》 SCIE 2005年第3期219-225,共7页
Research on hybrid rice in Jiangsu Province, China began in 1970. Great progress has been made since then, which can be divided into three stages according to the development of hybrid rice breeding and production in ... Research on hybrid rice in Jiangsu Province, China began in 1970. Great progress has been made since then, which can be divided into three stages according to the development of hybrid rice breeding and production in Jiangsu Province. The first stage was beginning stage from 1970 to 1980, when progress was mainly made in cytoplasmic male sterile line breeding. The second stage could be described as developing stage, from 1980 to 1995, when indica hybrid rice was rapidly popularized, and japonica hybrid rice became popular later. From 1996, hybrid rice breeding in Jiangsu Province entered the third stage, when both indica and japonica hybrid rice breeding in the three-line system or intersubspecific hybrid rice breeding in the two-line system made a great breakthrough with the successful breeding of the hybrids Feyou 559, 9 You 138 and Liangyoupeijiu. The developing trend of hybrid rice breeding in Jiangsu Province is also discussed. 展开更多
关键词 hybrid rice (Oryza sativa) BREEDING three-line system two-line system indica-japonica hybridization heterosis
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四倍体水稻回复二倍体品系的籼粳属性鉴定和杂种优势利用初探 被引量:3
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作者 宋兆建 冯紫旖 +7 位作者 屈天歌 吕品苍 杨晓璐 湛明月 张献华 何玉池 刘育华 蔡得田 《作物学报》 CAS CSCD 北大核心 2023年第8期2039-2050,共12页
本研究以8个四倍体水稻回复二倍体品系为材料,采用InDel分子标记法鉴定其籼粳属性;同时以回复二倍体品系为父本,分别与籼稻光温敏雄性不育系培矮64S、粳稻光温敏雄性不育系农垦58S配制杂交组合,进行亲本及杂种的遗传距离及聚类分析,考... 本研究以8个四倍体水稻回复二倍体品系为材料,采用InDel分子标记法鉴定其籼粳属性;同时以回复二倍体品系为父本,分别与籼稻光温敏雄性不育系培矮64S、粳稻光温敏雄性不育系农垦58S配制杂交组合,进行亲本及杂种的遗传距离及聚类分析,考察杂种及其父本的产量相关性状,分析杂种的超父本优势、超标优势;另外,对亲本遗传距离与杂种优势的相关性进行分析,探讨利用亲本遗传距离预测杂种优势的可行性。结果表明:(1)回复二倍体品系的籼型基因频率分布在0.605~0.947之间,所有品系都兼有籼稻和粳稻遗传成分,但籼粳成分比例各不相同。(2)回复二倍体品系和培矮64S之间的遗传距离在0.21~0.42之间,回复二倍体品系和农垦58S之间的遗传距离在0.68~0.95之间;籼粳属性相同或相近的材料聚为一类,清晰显示了材料间的亲缘关系。(3)回复二倍体品系的杂种优势利用需要广亲和基因的参与,以具有广亲和基因的培矮64S为母本配制的杂交组合在单株有效穗数、每穗总粒数和每穗实粒数方面超父本优势和超标优势明显;在综合后的单株产量上8个杂交组合都表现出超父本优势和超标优势,尤其是杂交组合HYP2单株产量超标优势突出,高达45.92%。(4)亲本遗传距离与杂种F1的每穗总粒数和单株产量呈显著正相关,说明InDel遗传距离可以用于杂种优势预测。研究证实了籼粳亚种间四倍体水稻的回复二倍体品系兼有籼稻和粳稻遗传成分,遗传多样性丰富,利用这些回复二倍体品系能够配制出超强杂种优势组合,为通过以籼粳中间型品系与广亲和光温敏雄性不育系配组实现籼粳亚种间杂种优势利用提供了理论依据和参考;同时初步证实了“以多倍体为变异载体选育回复二倍体水稻”育种途径的可行性,为水稻育种提供了新的思路和途径。 展开更多
关键词 水稻 多倍体 回复二倍体 INDEL 籼粳属性 遗传距离 杂种优势
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Genetic analysis of morphological index and its related taxonomic traits for classification of indica/japonica rice 被引量:12
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作者 钱前 何平 +2 位作者 郑先武 陈英 朱立煌 《Science China(Life Sciences)》 SCIE CAS 2000年第2期113-119,共7页
A doubled haploid population derived from anther culture of ZYQ8/JX17 F1, a typical indica and japonica hybrid, was used in this study. Morphological index and its related taxonomic traits were investigated in 121 DH ... A doubled haploid population derived from anther culture of ZYQ8/JX17 F1, a typical indica and japonica hybrid, was used in this study. Morphological index and its related taxonomic traits were investigated in 121 DH lines. The quantitative trait loci (QTLs) for morphological index and its related taxonomic traits were analyzed. Two major QTLs for leaf hairiness, three QTLs for length/width of grain, one QTL for color of hull when heading, one QTL for hairiness of hull, two QTLs for length of the first and second panicle internode, and one major QTL and two QTLs for phenol reaction were detected. Four QTLs for morphological index were also identified on chromosomes 1, 3, 4 and 6, respectively, three of which on chromosomes 1, 3 and 6, respectively, were found to be located in the same chromosome regions where some QTLs for the related taxonomic traits were located. 展开更多
关键词 indica and japonica SUBSPECIES MORPHOLOGICAL INDEX TAXONOMIC TRAITS QTL analysis.
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海拔和籼粳细胞质背景对水稻F2代群体杂种优势和自交衰退的影响
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作者 王石华 《南方农业学报》 CAS CSCD 北大核心 2023年第2期434-443,共10页
【目的】分析海拔引起的环境温度变化对籼粳稻细胞质背景下的F1代配子基因型的选择效应及其对后代分离群体优势和衰退的影响,为水稻育种及全球气温变化对水稻遗传变异的效应研究提供理论参考。【方法】以具有籼稻细胞质背景的改良粳稻... 【目的】分析海拔引起的环境温度变化对籼粳稻细胞质背景下的F1代配子基因型的选择效应及其对后代分离群体优势和衰退的影响,为水稻育种及全球气温变化对水稻遗传变异的效应研究提供理论参考。【方法】以具有籼稻细胞质背景的改良粳稻品种南34与耐冷性极强的粳稻老品种小麻谷为亲本,将正反交F1代种植在3个海拔条件下产生6个F2代群体,对其11个生物学性状的杂种优势及自交衰退进行分析。【结果】株高、剑叶长、剑叶宽、有效穗数、主穗长、穗颈长、实粒数和结实率8个性状的自交衰退在6个F2代群体中均达显著(P<0.05,下同)或极显著(P<0.01,下同)水平,播始历期、1~2穗节长和着粒密度等3个性状的自交衰退在部分F2代群体中达显著或极显著水平。正反交组合F2代群体中播始历期、株高、剑叶宽、有效穗数、实粒数和结实率6个性状的杂种优势和自交衰退均随海拔的升高而减小,剑叶长、主穗长、1~2穗节长、穗颈长和着粒密度5个性状的杂种优势和自交衰退在正反交组合中具有明显的差异。F2代群体生物学性状的中亲优势率、超亲优势率和自交衰退率明显受到产生F2群体的海拔和细胞质背景的影响。【结论】海拔和细胞质背景对水稻F2代群体杂种优势及自交衰退产生的效应,分别是由于海拔导致的环境温度变化对杂种F1代的雄配子选择以及不同细胞质背景下由雄配子和雌配子共同选择造成。此外,海拔对F2代群体当代的孢子体同样具有非常明显的效应。 展开更多
关键词 籼粳稻细胞质 海拔变异 F2代群体 杂种优势 自交衰退
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水稻穗颈维管束性状的类型间差异及其遗传的研究 被引量:68
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作者 徐正进 陈温福 +2 位作者 张龙步 彭应财 张俊国 《作物学报》 CAS CSCD 北大核心 1996年第2期167-172,共6页
1987~1990年以包括典型粳型、典型籼型、通过籼粳稻杂交育成的偏粳型和偏籼型4种类型共68个品种为试材,研究了穗颈维管束性状的类型间差异及其遗传。结果表明:无论亚种间还是不同亚种的类型间,穗颈大维管束数均存在显著差异,而亚种内... 1987~1990年以包括典型粳型、典型籼型、通过籼粳稻杂交育成的偏粳型和偏籼型4种类型共68个品种为试材,研究了穗颈维管束性状的类型间差异及其遗传。结果表明:无论亚种间还是不同亚种的类型间,穗颈大维管束数均存在显著差异,而亚种内类型间的差异则未达到显著水平;穗颈小维管束数亚种间差异不显著,但亚种内类型间有一定差异;第2节间与穗颈大维管束数之比和穗颈大小维管束数之比的变异趋势与穗颈大维管束数相似,而且较后者更为稳定,可作为籼粳亚种分类的2个参考解剖指标;籼粳亚种间杂交,穗颈大维管束数在F_1接近双亲平均值,F_2呈连续变异,接近正态分布,正反交F_1表现和F_2分离均无显著差异。 展开更多
关键词 水稻 分类 亚种间杂交 穗颈维管束 遗传分析
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籼粳稻杂交育成品种的亚种特征性状及其与经济性状的关系 被引量:22
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作者 徐正进 李金泉 +4 位作者 姜健 荆彦辉 张文忠 陈温福 张龙步 《作物学报》 CAS CSCD 北大核心 2003年第5期735-739,共5页
采用程氏指数法研究的结果表明 :95个籼粳杂交育成水稻品种均划入粳型或偏粳型 ;6项亚种特征性状中穗壳色、酚反应、稃毛、叶毛及籽粒长宽比全部或大多表现典型粳型特性 ,少量为中间型或偏向籼型 ,穗节长表现中间类型最多 ,极少数为籼... 采用程氏指数法研究的结果表明 :95个籼粳杂交育成水稻品种均划入粳型或偏粳型 ;6项亚种特征性状中穗壳色、酚反应、稃毛、叶毛及籽粒长宽比全部或大多表现典型粳型特性 ,少量为中间型或偏向籼型 ,穗节长表现中间类型最多 ,极少数为籼型和粳型 ;籼粳杂交F1 和育成品种的程氏指数和亚种特征性状与经济性状关系不密切 ,而F2 的相关性明显增大 ; 展开更多
关键词 籼粳稻 杂交品种 亚种 特征性状 经济性状 程氏指数法
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水稻杂种优势与遗传分化关系的研究 被引量:71
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作者 孙传清 姜廷波 +3 位作者 陈亮 吴长明 李自超 王象坤 《作物学报》 CAS CSCD 北大核心 2000年第6期641-649,共9页
以培矮 64s、 10 8s、N4 2 2 s、L S2 s等 4个两系不育系为母本 ,以韩国籼、中国南方的早中籼 (简称中国籼 )、东北粳 (分东北普通粳和粳杂恢复系 )、华北粳、非洲粳、美国粳等 6个生态型的 4 7个育成品种为父本 ,按照 NC- 设计 ,配制 ... 以培矮 64s、 10 8s、N4 2 2 s、L S2 s等 4个两系不育系为母本 ,以韩国籼、中国南方的早中籼 (简称中国籼 )、东北粳 (分东北普通粳和粳杂恢复系 )、华北粳、非洲粳、美国粳等 6个生态型的 4 7个育成品种为父本 ,按照 NC- 设计 ,配制 188个组合。在所配的组合类型中 ,N4 2 2 s/中国籼单株粒重最高 ,其次是 N4 2 2 s/韩国籼、培矮 64s/东北粳、 10 8s/中国籼 ,这些组合类型均为籼粳亚种间的组合 ,说明亚种间巨大的杂种优势。不同组合类型的产量构成因素分析表明 ,与中国南方的早中籼和韩国育成籼稻品种配组的 F1在穗数上具有明显的优势 ,与东北粳杂恢复系、美国稻配组的 F1在穗粒数上具有明显的优势 ,而与非洲粳配组的 F1在千粒重上具有明显的优势 ,华北粳在穗数和穗粒数上处于中间型 ,推测中国籼和韩国籼可能具有穗数上的优势基因 ,美国稻和东北粳具有粒数的优势基因 ,非洲粳具有粒重上的优势基因。比较 4个不育系配组的产量及产量构成因素发现 ,培矮 64s在穗数上具有明显的优势 ,培矮 64s、 N4 2 2 s和 10 8s在穗粒数上均具有优势 ,而 LS2 s在千粒重上明显的优势。杂种优势与双亲籼粳分化的相关关系分析表明 ,超亲优势与双亲的籼粳分化关系明显 ,且 展开更多
关键词 水稻 杂种优势 籼粳分化 不育系 恢复系
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不同生态条件下籼粳稻杂交后代亚种特性的比较研究 被引量:18
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作者 徐海 刘宏光 +5 位作者 杨莉 朱春杰 王嘉宇 杨乾华 徐正进 郑家奎 《作物学报》 CAS CSCD 北大核心 2007年第3期370-377,共8页
以中优早8号×丰锦F6重组自交系群体为试材,在辽宁和四川两个不同的生态区种植,研究亚种特性的变化。结果表明,试材在两个地区都呈偏粳分布。不同生态条件下亚种特征性状发生了明显变化,总体上四川表现比辽宁更加偏粳。进一步分析显... 以中优早8号×丰锦F6重组自交系群体为试材,在辽宁和四川两个不同的生态区种植,研究亚种特性的变化。结果表明,试材在两个地区都呈偏粳分布。不同生态条件下亚种特征性状发生了明显变化,总体上四川表现比辽宁更加偏粳。进一步分析显示,籼及偏籼型四川比辽宁表现更加偏籼,而粳及偏粳型更加偏粳。生态条件对程氏指数6性状的影响因性状而异,1-2穗节长、叶毛四川比辽宁偏粳,籽粒长宽比、抽穗时壳色四川比辽宁偏籼。生态条件对程氏指数6性状间和程氏指数与维管束性状间的相关性也有显著影响。籼粳稻杂交后代的维管束性状在不同生态条件下有显著变化,四川穗颈大维管束数比辽宁明显减少,而穗颈小维管束数和第二节间小维管束数明显增加,大小维管束比降低,大维管束比增加。总体上虽然有大小维管束比籼型>粳型,大维管束比籼型<粳型的趋势,但是大小维管束比和大维管束比不能作为籼粳稻分类的指标,籼粳稻杂交后代亚种特性与维管束性状已经重新组合。 展开更多
关键词 水稻 生态环境 籼粳杂交 籼粳亚种分类
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不同类型籼粳亚种间杂种F_1可利用和非可利用杂种优势的评价和利用 被引量:52
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作者 杨振玉 张忠旭 +2 位作者 华泽田 张铁龙 顾义明 《中国水稻科学》 CAS CSCD 北大核心 1990年第2期49-55,共7页
本研究搜集典型籼粳品种、广亲和品种、偏籼或偏粳品系及恢复系并进行杂交。选取25个籼粳亚种间杂种F_1,将其划分为5类。以这5类25个组合的生物产量、茎叶重、秆高、出穗期、每穗颖花数、实粒数、结实率等性状为基本资料,分别计算其超... 本研究搜集典型籼粳品种、广亲和品种、偏籼或偏粳品系及恢复系并进行杂交。选取25个籼粳亚种间杂种F_1,将其划分为5类。以这5类25个组合的生物产量、茎叶重、秆高、出穗期、每穗颖花数、实粒数、结实率等性状为基本资料,分别计算其超亲优势与竞争优势。结果指出:籼粳亚种间F_1茎叶重与结实率存在负相关,杂种优势含可利用与非可利用两部分,典型籼粳F_1杂种优势是难以利用的,利用广亲和系与偏籼或偏粳恢复系及其派生系、或者偏籼广亲和系和偏粳广亲和系配组,实观部分利用亚种间杂种优势,应作为当前亚种间杂种优势利用育种战略的重要措施。 展开更多
关键词 籼粳亚种 杂种优势 可利用性
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利用InDel标记鉴定浙优系列杂交稻籼粳属性和预测杂种优势 被引量:30
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作者 王林友 张礼霞 +3 位作者 勾晓霞 范宏环 金庆生 王建军 《中国农业科学》 CAS CSCD 北大核心 2014年第7期1243-1255,共13页
【目的】准确鉴定水稻材料的籼粳属性及利用遗传距离预测杂种优势,为开展水稻超高产育种和籼粳亚种间杂种优势利用提供基础。【方法】利用19对籼粳稻特异插入/缺失(Ins6rtion/Deletion,InDe1)引物,对12个浙优系列杂交稻及其双亲的籼粳... 【目的】准确鉴定水稻材料的籼粳属性及利用遗传距离预测杂种优势,为开展水稻超高产育种和籼粳亚种间杂种优势利用提供基础。【方法】利用19对籼粳稻特异插入/缺失(Ins6rtion/Deletion,InDe1)引物,对12个浙优系列杂交稻及其双亲的籼粳属性进行了InDe1分子标记鉴定,根据被检测水稻样品在多个InDe1位点上的籼型或粳型基因频率,参考卢宝荣的方法,将供试样品分别判定为"籼稻"、"偏籼"、"中间偏籼"、"中间偏粳"、"偏粳"和"粳稻"。采用Nei的方法求算1 3个亲本间(1个不育系和12个恢复系)的InDe1遗传距离,用UPGMA法进行遗传相似性聚类,用SPSS 17.0统计分析软件对InDe1条带赋值进行主成分分析,依据第一和第二主成分的特征向量的平均分量值作平面散点图。统计杂种F_1稻谷产量、每穗总粒数、每穴有效穗、结实率、千粒重及单穗重各产量性状的对照优势,以此分析InDe1遗传距离与杂种优势的相关性。【结果】(1)参试材料籼粳属性的判别:不育系浙04A被鉴定为"粳稻",8个恢复系被判定为"籼稻"或"偏籼",由其所配组的8个杂交组合被判定在"中间偏籼"到"偏粳"之间,证实了这8个组合为典型的籼粳交组合;另外4份恢复系被判定为"偏粳",所配组的4个杂交组合被判定为"粳稻"。(2)参试材料的聚类分析:当GS为0.350时,35份试验材料被分为"粳稻"和"籼稻"2个主群,GS为0.638时,粳稻主群又被划分为"粳稻/偏粳"和"中间偏粳"2个亚群。其中,粳稻/偏粳亚群包括不育系浙04A、4个粳粳交恢复系及粳粳交杂种F_1、3个粳稻对照种和粳稻秀水09;中间偏粳亚群包括8个籼粳交杂种F_1。籼稻主群则包括8个籼粳交组合的恢复系、3个籼稻对照种和籼杂组合汕优6 3。(3)InDe1遗传距离与杂种优势的相关性:在以粳粳交、籼粳交组合整体作为分析对象时,InDe1遗传距离与稻谷产量、每穗总粒数、单穗重呈极显著正相关,与结实率呈显著负相关;仅以籼粳交组合为研究对象时,InDe1遗传距离仅与单穗重和千粒重呈显著正相关。【结论】供试的12个浙优系列中的8个组合被证实为典型的粳不/籼恢型籼粳交组合,这些组合的双亲间具有较远的遗传距离;InDe1遗传距离在不同类型品种间具有较好的杂种优势预测能力,可用于单穗重的优势预测,即随着InDe1遗传距离的扩大,杂种优势主要体现在单穗重的增加上。 展开更多
关键词 水稻 INDEL 分子标记 杂种优势 籼粳交
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两系杂交稻优势生态型的初步研究 被引量:35
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作者 孙传清 陈亮 +4 位作者 李自超 张培江 李任华 姜廷波 王象坤 《杂交水稻》 CSCD 北大核心 1999年第2期34-38,共5页
研究了培矮64S和N422S与粳亚种中的东北粳、华北粳、日韩粳、云贵粳、非洲粳、美国稻及籼亚种中的云贵籼、太湖籼、华中籼和Aus稻的杂种F1的产量及产量构成因素的杂种优势,初步确定美国稻、非洲粳、云贵粳以及华北粳中的... 研究了培矮64S和N422S与粳亚种中的东北粳、华北粳、日韩粳、云贵粳、非洲粳、美国稻及籼亚种中的云贵籼、太湖籼、华中籼和Aus稻的杂种F1的产量及产量构成因素的杂种优势,初步确定美国稻、非洲粳、云贵粳以及华北粳中的改良品种是粳稻的优势生态型,太湖籼与云贵籼是籼稻的优势生态型。对籼粳优势生态型的产量优势进行比较发现,N422S/太湖籼低于N422S/美国稻,但与N422S/非洲粳和N422S/云贵粳相当;培矮64S与粳稻优势生态型的优势强于与籼稻优势生态型的优势。两个不育系的优势比较表明,培矮64S与各生态型的杂种优势强于N422S与各生态型的杂种优势。 展开更多
关键词 两系杂交稻 籼亚种 粳亚种 生态型 杂种优势
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利用粳型广亲和恢复系与籼稻不育系配制籼粳亚种间杂种 被引量:24
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作者 张兆兰 王才林 +1 位作者 汤述翥 施建达 《江苏农业学报》 CSCD 1990年第1期10-16,共7页
对用粳型恢复系与广亲和系02428杂交选育出的一批农艺性状稳定的新的粳型恢复系进行亲和性和恢复力测定。结果表明,在所测定的9个株系中,有1个株系(87-3)能使协青早A和庆莲16A的育性恢复到69.6%和63.6%,有6个株系(87-1、87-3,87-4、8... 对用粳型恢复系与广亲和系02428杂交选育出的一批农艺性状稳定的新的粳型恢复系进行亲和性和恢复力测定。结果表明,在所测定的9个株系中,有1个株系(87-3)能使协青早A和庆莲16A的育性恢复到69.6%和63.6%,有6个株系(87-1、87-3,87-4、87-6、87-7,87-8)能使六南早A的育性恢复到60%以上。杂种生长繁茂,穗粒优势十分明显,与品种间杂种相比具有更大的生产潜力。讨论了基于广亲和恢复系选育的三系法籼粳亚种间杂种优势利用的可能性及其育种价值。 展开更多
关键词 广亲和恢复系 亚种间杂种
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水稻籼粳亚种间杂种优势利用研究进展 被引量:63
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作者 杨振玉 高勇 +4 位作者 赵迎春 魏耀林 华泽田 张忠旭 高日玲 《作物学报》 CAS CSCD 北大核心 1996年第4期422-429,共8页
本文从水稻育种进步的宏观观点,回顾与展望了我国水稻杂种优势利用的历史进程。由早期追求以强大生物优势为主要育种目标的启蒙阶段进入三系法生态远缘优势与理想株型相结合的籼梗杂种优势间接利用阶段,实现了水稻杂种优势利用的第一次... 本文从水稻育种进步的宏观观点,回顾与展望了我国水稻杂种优势利用的历史进程。由早期追求以强大生物优势为主要育种目标的启蒙阶段进入三系法生态远缘优势与理想株型相结合的籼梗杂种优势间接利用阶段,实现了水稻杂种优势利用的第一次飞跃。现在又进入三系法、两系法籼粳有利基因交换与自由配组的籼梗杂种优势直接利用阶段,预期将产生水稻杂种优势利用的第二次飞跃。近年研究表明,双亲遗传距离与经济优势呈二次多项式关系,杂种优势含可利用与非可利用两个方面,广亲和系可以将亚种F_(?)结实率提高到正常水平,但它的稳定性受双亲遗传背景与环境互作影响。因此,采用“籼梗(爪)架桥”,亲缘渐渗,有利基因交换,亲本遗传改良以及因地制宜选择种植区,是籼粳亚种间杂种优势利用的主要方法。 展开更多
关键词 籼稻 粳稻 亚种间 杂种优势
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水稻品种T984和Pecos的广亲和性及其利用价值 被引量:17
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作者 熊振民 闵绍楷 +1 位作者 程式华 曹立勇 《中国水稻科学》 CAS CSCD 北大核心 1990年第1期9-14,共6页
通过广泛测交筛选,发现浙江台州地区农科所的籼粳复交后代T984和美国粳型品种Pecos具有亚种间杂交的广亲和性。T984与8个籼型和7个粳型测验种的测交F_1杂种的平均结实率分别为75.8%和76.8%,表现广谱型的亲和性。Pecos与2个籼型和2个粳... 通过广泛测交筛选,发现浙江台州地区农科所的籼粳复交后代T984和美国粳型品种Pecos具有亚种间杂交的广亲和性。T984与8个籼型和7个粳型测验种的测交F_1杂种的平均结实率分别为75.8%和76.8%,表现广谱型的亲和性。Pecos与2个籼型和2个粳型测验种测交F_1杂种的平均结实率分别为66.4%和77.9%,属偏粳型的广亲和性品种。T984对籼、粳型测验种杂交F_1和Pecos对籼型测验种杂交F_1在单株生产力、单株穗数、株高等性状上存在着较强的正向超亲优势。Pecos对粳型测验种杂交F_1除了株高和穗长外,其余性状没有超亲或表现负向优势。 展开更多
关键词 水稻 品种 亲和性 利用价值
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