您好，欢迎访问江苏省农业科学院 机构知识库！
江苏省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Large-scale breeding population validating significant loci for the 1000-kernel weight of wheat

文献类型： 外文期刊

作者： Jiang, Peng 1 ; Li, Chang 1 ; Cui, Fa 3 ; Wu, Lei 1 ; Zhang, Zhaoyang 4 ; He, Yi 1 ; Zhang, Peng 1 ; Ma, Hongxiang 5 ; Zhang, Xu 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, JAAS Joint Ctr Wheat Dis, Res Ctr Wheat Scab, Key Lab Germplasm Innovat Downstream Huaihe River, Nanjing, Peoples R China

2.Zhongshan Biol Breeding Lab, Nanjing, Peoples R China

3.Ludong Univ, Coll Agr, Key Lab Mol Module Based Breeding High Yield & Abi, Yantai, Peoples R China

4.Shandong Agr Univ, Coll Qilu, State Key Lab Wheat Breeding, Tai An, Peoples R China

5.Yangzhou Univ, Coll Agr, Coinnovat Ctr Modern Prod Technol Grain Crops Jian, Minist Educ,Jiangsu Key Lab Crop Genom & Mol Breed, Yangzhou, Peoples R China

6.Collaborat Innovat Ctr Modern Crop Prod Cosponsore, Nanjing, Peoples R China

7.Jiangsu Acad Agr Sci, CIMMYT JAAS Joint Ctr Wheat Dis, Res Ctr Wheat Scab, Minist Agr & Rural Affairs,Key Lab Germplasm Innov, Nanjing 210014, Peoples R China

期刊名称：CROP SCIENCE （ 影响因子：2.3； 五年影响因子：2.5 ）

ISSN： 0011-183X

年卷期： 2024 年 64 卷 3 期

页码：

收录情况： SCI

摘要： As an important component of wheat (Triticum aestivum L.) yield, 1000-kernel weight (TKW) has played a crucial role in yield improvement in recent decades. Marker-assisted selection is an effective tool for improving quantitative traits; however, most markers have not been effectively applied in TKW improvement despite the identification of many loci associated with TKW. In this study, association mapping was performed using local cultivated varieties, and a previous linkage analysis was integrated to identify 10 candidate intervals. The corresponding kompetitive allele-specific PCR markers associated with TKW were successfully developed and screened in 1153 F4 breeding lines. Three markers, namely, Ktkw-5B2, Ktkw-5D, and Ktkw-7D, were proved to be significantly related to TKW according to large-scale association mapping, and their ability to increase TKW was enhanced in combination. We applied the three markers in 150 F6 breeding lines and obtained 25 high-TKW lines, indicating the availability in marker-assisted selection. The TKW-increasing allele for Ktkw-5D was heavily selected in the present breeding program, while that for Ktkw-5B2 was low and for Ktkw-7D tended to increase after 2000. Furthermore, strategies for gene exploration in the three significant intervals were proposed. These results are expected to provide an efficient route for improving TKW in wheat high-yield breeding. Three significant loci for 1000-kernel weight were identified by genetic analysis. The markers were applied in breeding lines to generate varieties with high 1000-kernel weight. The application progress of the three loci was clarified. Strategies for gene exploration in the three significant intervals were proposed.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：江苏省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台