中国农业科学 ›› 2012, Vol. 45 ›› Issue (12): 2346-2356.doi: 10.3864/j.issn.0578-1752.2012.12.002

• 作物遗传育种·种质资源·分子遗传学 • 上一篇    下一篇

大豆二粒荚长、宽相关QTL间上位效应和QE互作效应分析

 杨振, 裴宇峰, 谢圣男, 刘春燕, 蒋洪蔚, 韩雪, 辛大伟, 陈庆山, 胡国华   

  1. 1.东北农业大学农学院,哈尔滨 150030
    2.黑龙江省农垦科研育种中心,哈尔滨 150090
    3.国家大豆工程技术研究中心,哈尔滨 150050
  • 收稿日期:2011-12-19 出版日期:2012-06-15 发布日期:2012-03-19
  • 通讯作者: 通信作者胡国华,Tel:0451- 55199475;E-mail:hugh757@vip.163.com。陈庆山,Tel:0451-55191945;E-mail:qshchen@126.com
  • 作者简介:杨 振,Tel:0451-55191945;E-mail:yangzhen0467@163.com。裴宇峰,Tel:0451-55191945;E-mail:yfpei@sina.com。杨 振和裴宇峰为同等贡献作者
  • 基金资助:

    “大豆新品种培育与扩繁”国家十二五科技支撑计划(2011BAD35B06)、农业部转基因专项(2011ZX08004-001-06)、现代农业产业体系(CARS-04-02A)、行业科技——气候变化对大豆生产的影响及应对技术研究(200903003)

Epistatic Effects and QE Interaction Effects of QTLs for Two-Seed Pod Length and Width in Soybean

 YANG  Zhen, PEI  Yu-Feng, XIE  Sheng-Nan, LIU  Chun-Yan, JIANG  Hong-Wei, HAN  Xue, XIN  Da-Wei, CHEN  Qing-Shan, HU  Guo-Hua   

  1. 1.东北农业大学农学院,哈尔滨 150030
    2.黑龙江省农垦科研育种中心,哈尔滨 150090
    3.国家大豆工程技术研究中心,哈尔滨 150050
  • Received:2011-12-19 Online:2012-06-15 Published:2012-03-19

摘要: 【目的】定位大豆二粒荚长、宽QTL,并分析QTL间的上位效应和与环境(QTL-by-environment, QE)的互作效应。【方法】利用Charleston×东农594重组自交系及其F2:14—F2:18代的重组自交系的147个株系为试验材料,164个SSR引物经亲本筛选后用于群体扩增构建的SSR遗传图谱,利用混合区间作图法,对2006—2010年连续5年一个地点的大豆二粒荚长、宽进行QTL定位,并作加性效应、加性×加性上位互作效应及环境互作效应分析。【结果】检测到8对有加性效应的二粒荚长QTL,加性效应的总贡献率27.2%,与环境互作总贡献率达到10.19%;6对有加性效应的二粒荚宽QTL,加性效应的总贡献率16.27%,与环境互作总贡献率达到12.18%。9对影响二粒荚长的加性×加性上位互作效应的QTL,可解释该性状总变异的9.02%;8对影响二粒荚宽的加性×加性上位互作效应的QTL,可解释该性状总变异的8.81%。【结论】上位效应和环境效应在二粒荚长、宽性状的遗传中起了重要作用,因此,在分子标记辅助育种中应该考虑对效应起主要作用的QTL和上位性QTL,又要考虑微效多基因的聚合。

关键词: 大豆, 二粒荚长, 二粒荚宽, 混合线性模型, QTL与环境互作效应, 上位互作效应

Abstract: 【Objective】The objective of this study was to investigate the epistatic effects and QE interaction effects of QTLs for two-seed pod length and two-seed pod width.【Method】In order to find out these results, a F2:14-F2:18 RIL population containing 147 lines derived from a cross between Charleston as female parent and Dongnong594 as male parent were used in this experiment. A genetic linkage map was constructed with 164 SSR primers screened in two parents and amplified in 147 lines population. QTLs and epistatic effects and QE Interaction effects of QTLs were located on one site in five years with a mixed linear model (QTLmapper1.6) . QTLs for these were detected in a five-year experiment with the recombination inbred lines (RIL) population derived from a cross between Charleston and Dongnong 594. 【Result】Eight two-seed pod length QTLs and six two-seed pod width with additive effects were detected, the additive effects contribution rate were 27.2% and 16.27%, respectively, the general contribution of interaction between QTLs and environment were 10.19% and 12.18%. Nine pairs of two-seed pod length QTLs with epistatic effects were found in the RIL, accounting for 9.02% of the general phenotypic variation, and eight pairs of two-seed pod width QTLs accounting for 8.81% of the general phenotypic variation.【Conclusion】The results indicated that the epistatic effects and the environmental factor played an important role in the inheritance of two seed-pod length and width in soybean. Therefore, both major and minor QTLs should be considered in the improvement in soybean breeding.

Key words: soybean, two-seed pod length, two-seed pod width, mixed linear model, QTL ×, environment interaction, epistatic effects