四川农业大学学报 ›› 2016, Vol. 34 ›› Issue (04): 397-401.doi: 10.16036/j.issn.1000-2650.2016.04.001

• •    下一篇

小麦ITMI重组自交系群体的穗长及株高QTL定位研究

杨林, 欧俊, 陈源   

  1. 成都农业科技职业学院现代农业分院, 四川 温江 611130
  • 收稿日期:2016-11-16 出版日期:2016-12-31 发布日期:2017-02-15
  • 作者简介:杨林,副教授,硕士,主要从事作物遗传育种研究,E-mail:yanglin126007@163.com。
  • 基金资助:
    四川省高等职业院校省级重点专业(作物生产技术)建设项目(510101)

QTL Mapping for Spike Length and Plant Height in ITMI Recombinant Intercross Lines Population of Wheat

YANG Lin, OU Jun, CHENG Yuan   

  1. Chengdu Agricultural College, Agriculture and Horticulture Department, Wenjiang 611130, Sichuan, China
  • Received:2016-11-16 Online:2016-12-31 Published:2017-02-15

摘要: [目的] 通过对小麦重组自交系群体及其亲本为材料,利用已构建的高密度遗传图谱对该群体株高及穗长进行QTL定位。[方法] 利用包含有110个株系的重组自交系群体,利用已构建的高密度遗传连锁图谱对小麦株高和穗长进行了QTL定位。[结果] 两个环境下共检测到12个穗长相关QTL位点和8个株高相关的QTL位点。其中,穗长的1个位点(Qsl-1A),株高的3个位点(Qph-1A,Qph-5A-1Qph-6A-2)在两个环境中都被检测到。[结论] 研究为小麦的分子改良育种提供了重要的分子标记信息。

关键词: 小麦, 株高, 穗长, QTL

Abstract: [Objective] The objective of this study was to identify QTLs for plant height and spike length based on a genetic map with high density and a RIL population. [Method] A recombinant intercross lines population contain 110 lines were used to perform QTL analysis based on a high density genetic map. [Results] A total of 12 QTLs for spike length were identified, and two of them were expressed in both investigated environments, and 6 were accounted for over 10% phenotypic variation. A total of 8 QTLs for plant height were identified, and 3 of them were expressed in both investigated environments, and two loci were accounted for over 10% phenotypic variation. [Conclusion] Taken together, All loci in present study are very important to spike morphology and yield improvement.

Key words: wheat, plant height, spike length, QTL

中图分类号: 

  • S512.1