多年生长雄蕊野生稻剑叶长度的遗传分析
作者:
作者单位:

广西大学生命科学与技术学院亚热带农业生物资源保护与利用国家重点实验室

作者简介:

通讯作者:

中图分类号:

基金项目:

广西科技计划(桂科AD19110145);广西自然科学基金资助(2018GXNSFBA138022);广西大学科研基金资助项目(XTZ131548;XMPZ160942);广西高校中青年教师基础能力提升项目(2018KY0046)


Genetic Analysis on Flag Leaf Length of Oryza Longistaminata
Author:
Affiliation:

State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources

Fund Project:

Guangxi Science and Technology Development Program (AD19110145); Guangxi Natural Science Foundation of China (2018GXNSFBA138022) ; The Scientific Research Foundation of Guangxi University (XTZ131548, XMPZ160942); The Basic Ability Enhancement Program for Young and Middle-aged Teachers of Guangx i(2018KY0046)

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    水稻剑叶性状与产量息息相关,也是水稻遗传学和分子生物学研究的热点之一。剖析水稻剑叶长度的遗传机理,为培育理想株型新品种提高水稻产量奠定基础。以长剑叶的非洲长雄蕊野生稻(Oryza longistaminata)为父本、短剑叶的粳稻Balilla为母本构建F2分离群体。统计近三年的F2群体的表型数据和基因型数据,对剑叶长度性状进行了遗传效应分析和QTL定位。一共检测到10个控制剑叶长度的QTL位点,分布在水稻的第3、4、5、7、8、9、11和12号染色体上。其中位于第9染色体上的qFLL9-1是群体中控制水稻剑叶长度的主效位点,还鉴定到了两个新位点qFLL4-1和qFLL11-1。针对主效位点qFLL9-1构建了高世代回交群体BC6F2,验证了qFLL9-1在群体中发挥重要的效应。鉴定了qFLL4-1和qFLL11-1两个调控剑叶长度的新QTL位点,验证了一个调控水稻剑叶长度的主效QTL qFLL9-1,研究结果为水稻剑叶长度QTL的精细定位奠定了基础,有利于长雄蕊野生稻种质资源的进一步开发与利用。

    Abstract:

    The flag leaf-related trait is important for the rice yield. The genetic mechanism of flag leaf length in rice was analyzed to lay a foundation in breeding of new varieties with ideal plant types and improve yield performance. In this study, the F2 population was constructed, using and Balilla (Oryza saliva L. sub sp. japonica; short flag leaves; female) pollinated with the O. longistaminata (long flag leaves; male). Based on the data of phenotype and genotype of the F2 populations in three years, the QTL of flag leaf length and their genetic effects were analyzed. Ten QTL modulating flag leaf length were detected on chromosome 3, 4, 5, 7, 8, 9, 11 and 12 of rice. Among them, the QTL qFLL9-1 was identified as the major locus, while the other two QTL qFLL4-1 and qFLL11-1 were newly identified. We further generated a high generation backcross population BC6F2 targeting qFLL9-1, and demonstrated this locus with an important role in the population. These results will benefit for future fine mapping of this QTL modulating flag leaf length, and the development and utilization of Oryza longistaminata.

    参考文献
    相似文献
    引证文献
引用本文
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2022-08-05
  • 最后修改日期:2022-08-14
  • 录用日期:2022-08-25
  • 在线发布日期: 2022-09-02
  • 出版日期:
您是第位访问者
ICP:京ICP备09069690号-23
京ICP备09069690号-23
植物遗传资源学报 ® 2023 版权所有
技术支持:北京勤云科技发展有限公司