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首页> 外文期刊>农业科学学报（英文版） >Effect of Environment and Genetic Recombination on Subspecies and Economic Trait Differentiation in the F2 and F3 Generations from indica-japonica Hybridization
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Effect of Environment and Genetic Recombination on Subspecies and Economic Trait Differentiation in the F2 and F3 Generations from indica-japonica Hybridization

机译：环境和基因重组对in粳杂交F2和F3代亚种和经济性状分化的影响

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摘要

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 signiifcantly 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 signiifcant 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.
机译：籼稻和粳稻是亚洲栽培稻的两个最重要的亚种。鉴定这些亚种类分化负责的机制对于籼粳杂交育种是重要的。在本研究中，使用来自籼粳杂交的F2和F3种群的形态和分子（Indel和Indel和Indel和Intron Ligher多态性）数据分析亚种和经济性状分化模式。种群在辽宁和广东省长，中国广东省，采用F2种群，使用批量收获（BM）和单种子血液血统（SSD）产生F2群体。在F3-BM群体中检测到分离畸变，但不在F3-SSD或F2群体中检测到。与辽宁的经济特征相比，观察到优越的性能与广东和1 000粒重量（kW），种子设定率（SSR）和每株植物的谷物产量（GYP）与籼稻和粳稻亚种类型相关。分子和形态学数据分析表明，环境是籼粳杂交中群体分化的主要因素。此外，我们还发现KW，SSR和GYP与亚种特征和血缘关系有关，这可能是一种意义因素，导致经济性状分化和确定环境适应性。我们的研究为这些亚种类的人口分化过程提供了新的见解，以告知籼粳杂交育种。

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  • 来源
    《农业科学学报（英文版）》 |2014年第1期|18-30|共13页
  • 作者

    WANG He-tong; XU Zheng-jin; JIN Feng; JIANG Yi-jun; LIN Qing-shan; XU Hai; CHENG Ling; XIA Ying-jun; LIU Chun-xiang; CHEN Wen-fu;

  • 作者单位

    Rice Research Institute, Shenyang Agricultural University, Shenyang 110010, P.R.China;

    Rice Research Institute, Shenyang Agricultural University, Shenyang 110010, P.R.China;

    Rice Research Institute, Shenyang Agricultural University, Shenyang 110010, P.R.China;

    Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510000, P.R.China;

    Agricultural Technology Extension Station, Department of Agriculture of Guangdong Province, Guangzhou 510000, P.R.China;

    Rice Research Institute, Shenyang Agricultural University, Shenyang 110010, P.R.China;

    Rice Research Institute, Shenyang Agricultural University, Shenyang 110010, P.R.China;

    Rice Research Institute, Shenyang Agricultural University, Shenyang 110010, P.R.China;

    Rice Research Institute, Shenyang Agricultural University, Shenyang 110010, P.R.China;

    Rice Research Institute, Shenyang Agricultural University, Shenyang 110010, P.R.China;

  • 收录信息 中国科学引文数据库(CSCD);
  • 原文格式 PDF
  • 正文语种 eng
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