中国农业科学 ›› 2013, Vol. 46 ›› Issue (22): 4646-4656.doi: 10.3864/j.issn.0578-1752.2013.22.002

• 作物遗传育种·种质资源·分子遗传学 • 上一篇    下一篇

基于元分析的大豆成熟期单片段代换系鉴定与QTL定位

 车京玉12, 刘春燕3, 蒋洪蔚13, 韩雪3, 毛彦芝12, 辛大伟1, 陈庆山1, 胡国华3   

  1. 1.东北农业大学农学院,哈尔滨 150030
    2.黑龙江省农业科学院克山分院,黑龙江克山 161606
    3.黑龙江省农垦科研育种中心,哈尔滨 150090
  • 收稿日期:2013-05-26 出版日期:2013-11-15 发布日期:2013-09-12
  • 通讯作者: 通信作者陈庆山,E-mail:qshchen@126.com。通信作者胡国华,E-mail:hgh757@vip.163.com
  • 作者简介:车京玉,E-mail:cryu1122@163.com
  • 基金资助:

    黑龙江省教育厅新世纪优秀人才项目(1252-NCET-004)、国家现代农业产业体系建设专项(CARS-04-02A)、黑龙江省自然科学基金重点项目(ZD201213)、国家“863”高技术研究发展计划(2012AA101106)和国家“十二五”科技支撑计划项目(2011BAD35B06-1)

Identification of Soybean Maturity SSSLs and QTL Mapping Based on Meta-Analysis

 CHE  Jing-Yu-12, LIU  Chun-Yan-3, JIANG  Hong-Wei-13, HAN  Xue-3, MAO  Yan-Zhi-12, XIN  Da-Wei-1, CHEN  Qing-Shan-1, HU  Guo-Hua-3   

  1. 1.Agriculture College, Northeast Agriculture University, Harbin 150030;
    2.Keshan Branch of Heilongjiang Academy of Agriculture Science, Keshan 161606, Heilongjiang
    3.Crop Research and Breeding Center of Land-Reclamation, Harbin 150090
  • Received:2013-05-26 Online:2013-11-15 Published:2013-09-12

摘要: 【目的】大豆成熟期是由多基因控制的数量性状,是影响大豆产量和适应性的重要性状。研究大豆成熟期单片段代换系遗传规律,鉴定分析大豆成熟期的主效QTL。【方法】以大豆红丰11为受体和回交亲本,以15个国内外大豆核心种质为供体亲本,构建回交导入系群体,基于元分析的大豆成熟期(R8)“真实QTL”SSR标记进行单片段代换系鉴定,利用“图示基因型法”计算导入片段和代换作图法鉴定大豆成熟期QTL,用单标记法鉴定成熟期重要QTL。【结果】在C2、L连锁群上检测到16种导入片段,C2连锁群检测到7种导入片段,导入片段总长度为9.8 cM。L连锁群检测到9种导入片段,导入片段总长度为37.212 cM;在C2和L连锁群上共检测出8个成熟期QTL,根据前人的研究,在L连锁群上有2个QTL即Sat_010、Satt156是E4/e4的特异SSR标记;在8个成熟期QTL中用单标记法鉴定了5个有关大豆成熟期重要SSR标记Sat_238、Satt460、Sct_010、Satt166、Sat_113;确定了单片段Satt460缩短大豆生育期,单片段Sat_238、Sct_010、Sat_113延迟大豆生育期。【结论】基于元分析的成熟期2个导入位点C2、L连锁群上检测到16种单片段,用代换作图法共检测出8个成熟期QTL,用单标记法鉴定了5个有关大豆成熟期重要SSR标记Sat_238、Satt460、Sct_010、Satt166、Sat_113。确定单片段Satt460与缩短大豆生育期有关,单片段Sat_238、Sct_010、Sat_113与延迟大豆生育期有关。

关键词: 大豆 , 成熟期 , 元分析 , 单片段代换系 , SSR标记

Abstract: 【Objective】Soybean maturity is a quantitative trait controlled by multiple genes, which is a key trait affecting soybean yield and adaptability. The heredity of soybean maturity with single segment substitution lines (SSSLs) was studied and the main effect QTLs of soybean maturity were identified. 【Method】 Fifteen sets of backcross introgression lines were constructed by using Hongfeng 11 as recurrent parent and 15 soybean varieties as the donor parent, respectively. Based on the results of meta-analysis of soybean maturity (R8), the SSR markers from real QTL interval were used to identify SSSLs. Using the method of figure genotype calculated the length of substitution fragment, using the statistical software SPSS analyzed the main effect QTLs of soybean maturity. 【Result】Sixteen substitution fragments were detected on linkage group C2 and L. Among them, 7 substitution fragments were detected on linkage group C2, substitution fragment length was 9.8cM in total. Nine substitution fragments were detected on linkage group L, and the substitution fragment length was 37.212 cM in total. Previous researches show that Sat_010 and Satt156 are the specific markers for E4/e4 on linkage group L, and 5 QTLs(Sat_238, Satt460, Sct_010, Satt166, and Sat_113 ) were identified on the maturity in one-way. Single fragment Satt460 could shorten the growth period of soybean, and single fragments Sat_238, Sct_010 and Sat_113 could delay soybean growth stages. Sat_238 Satt460, Sct_010, Satt166, and Sat_113 were identified to be the important SSR markers on soybean maturity. 【Conclusion】Five markers from meta-analysis were identified as the important markers on soybean maturity. The single fragment Satt460 could shorten the soybean growth period, single segments Sat_238, Sct_010, and Sat_113 could delay soybean growth period.

Key words: soybean , maturity , meta-analysis , single segment substitution lines (SSSLs) , SSR