新疆农业科学 ›› 2023, Vol. 60 ›› Issue (10): 2419-2425.DOI: 10.6048/j.issn.1001-4330.2023.10.010

• 作物遗传育种·种质资源·分子遗传学 • 上一篇    下一篇

基于水稻RIL群体的加工品质性状QTL分析

陈丽1(), 马静1, 朱志明2, 刘炜1, 孙建昌1()   

  1. 1.宁夏农林科学院农作物研究所,银川 750002
    2.宁夏农业技术推广总站, 银川 750001
  • 收稿日期:2023-02-09 出版日期:2023-10-20 发布日期:2023-11-01
  • 通信作者: 孙建昌(1975-),男,宁夏盐池人,研究员,博士,研究方向为水稻遗传育种,(E-mail)nxsjch@163.com
  • 作者简介:陈丽(1985-),女,陕西商洛人,助理研究员,硕士研究生,研究方向为水稻遗传育种,(E-mail)chen1985li@163.com
  • 基金资助:
    宁夏回族自治区水稻育种专项(2018NYYZ0302);宁夏回族自治区自然科学基金项目(2022AAC03459);宁夏回族自治区农业科技自主创新资金项目(NGSB-2021-13-3-3)

QTL mapping of processing quality traits on RIL population in rice

CHEN Li1(), MA Jing1, ZHU Zhiming2, LIU Wei1, SUN Jianchang1()   

  1. 1. Institute of Crop Science,Ningxia Academy of Agricultural and Forestry Science,Yinchuan 750002,China
    2. Agricultural technology extension station of Ningxia,Yingchuan 750001,China
  • Received:2023-02-09 Online:2023-10-20 Published:2023-11-01
  • Correspondence author: SUN Jancahng (1975-), male, native place: Yanchi, Ningxia. Professor, research field: Rice genetics and breeding research,(E-mail)nxsjch@163.com
  • Supported by:
    Rice Breeding Program Project of Ningxia Hui Autonomous Region(2018NYYZ0302);ZProject of Natural Science Foundation of Ningxia Hui Autonomous Region(2022AAC03459);Agricultural Science and Technology Independent Innovation Fund of Ningxia Hui Autonomous Region(NGSB-2021-13-3-3)

摘要:

【目的】 研究挖掘水稻加工品质性状相关基因位点。【方法】 以13HJZ-44/13HJZ-19构建的包括243个家系的RIL群体F7代为材料,于2019~2021年采集稻米出糙率、精米率和整精米率表型数据,并分析加工品质相关性状QTL。【结果】 共检测到加工品质性状相关QTL 9个,其中糙米率的2个QTL分别位于4号和11号染色体上,表型贡献率为18.68%和75.32%;精米率3个QTL分别位于1号、2号和5号染色体上,贡献率为4.35%、0.75%和16.21%;整精米率4个QTL分别位于5号、6号和8号染色体上,贡献率为10.76%、5.86%、5.42%和3.66%。【结论】 qHR-6-1、qHR-6-2和qBR-11是控制糙米率和整精米率位点,其中qHR-6-1、qHR-6-2对整精米率有微效性,qBR-11是一个新的控制糙米率主效QTL。

关键词: 水稻; 重组自交系; 加工品质; 性状; QTL分析

Abstract:

【Objective】 To explore the fundamental factors related to the quality of processed rice. 【Methods】 A RIL population F7 with 243 families constructed by 13JZ-44/13JZ-19 was used as the test material, and the phenotypic data of brown rate, milled rice rate and head milled rice rate were collected from 2019 to 2021, and QTL related to processing quality was analyzed.【Results】 The results showed that 9 QTLs related to processing quality traits were detected, among which 2 QTLs of brown rice percentage were located on chromosome 4 and 11, respectively, with phenotypic contribution rates of 18.68% and 75.32%. The three QTLs of milled rice rate were located on chromosomes 1, 2 and 5, respectively, with the contribution rates of 4.35%, 0.75% and 16.21%. The four QTLs of head rice rate were located on chromosomes 5, 6 and 8, respectively, with the contribution rates of 10.76%, 5.86%, 5.42% and 3.66%.【Conclusion】 qHR-6-1, qHR-6-2 and qBR-11 are newly discovered Loci for controlling brown rice rate and head rice rate, qHR-6-1 and qHR-6-2 have slight effect on head rice rate. And qBR-11 is a new major QTL for controlling brown rice rate.

Key words: rice; RIL population; processing quality; traits; QTL analysis

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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