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大豆油分含量相关的QTL间的上位效应和QE互作效应

Epistatic Effects of QTLs and QE Interaction Effects on Oil Content in Soybean

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【作者】 单大鹏齐照明邱红梅单彩云刘春燕胡国华陈庆山

【Author】 SHAN Da-Peng1, QI Zhao-Ming1, QIU Hong-Mei1, SHAN Cai-Yun1, LIU Chun-Yan1,2, HU Guo-Hua2,3, and CHEN Qing-Shan1 (1 Soybean Research Institute, Northeast Agricultural University, Harbin 150030, Heilongjiang; 2 The Crop Research and Breeding Center of Land-Re- clamation, Harbin 150090, Heilongjiang; 3 The National Research Center of Soybean Engineering and Technology, Harbin 150050, Heilongjiang, China)

【机构】 东北农业大学大豆研究所黑龙江省农垦科研育种中心 黑龙江哈尔滨150090黑龙江省农垦科研育种中心国家大豆工程技术研究中心黑龙江哈尔滨150050黑龙江哈尔滨150030黑龙江哈尔滨150090

【摘要】 利用Charleston ×东农594重组自交系构建的SSR遗传图谱,及混合线性模型方法对2002年到2006年连续5年的大豆油分含量进行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。共检测到11个控制油分含量的QTL,分别位于第A1、A2、B1、C2、D1a、D1b、F、H和O连锁群上,其中2个表现为遗传正效应,9个表现为遗传负效应,另检测到15对影响油分含量的加性×加性上位互作效应的QTL,解释该性状总变异的17.84%。发现9个QTL与环境存在互作,贡献率达到5.76%。

【Abstract】 Soybean [Glycine max (L.) Merr., 2n=2x=40] is grown worldwide, especially in the United States, Brazil, Argentina, and China. Increasing oil content in soybean seeds is one of the main aims in soybean breeding. Oil content is quantitative traits controlled by multiple genes. Many researches have used molecular markers to map quantitative trait loci (QTL). Currently, Soy- Base (2007) contains at least 68 QTL associated with oil content that have been mapped in many different populations and envi- ronments. The development of molecular tools has facilitated the task of identifying chromosomal regions related to particular traits. Song et al. (2004) developed an integrated genetic map spanning 2 523.6 cM across 20 linkage groups that contained 1 849 markers, including 1 015 SSRs, 709 RFLPs, 73 RAPDs, 24 classical traits, 6 AFLPs, 10 isozymes, and 12 others. In MAS, it would be more desirable to use confirmed QTL. For this purpose, it is necessary to conduct QTL, mapping studies in as many and as diverse environments and population as feasible. In this study, QTL of soybean oil content in five different years was analyzed with a recombination inbred lines (RIL) population derived from a cross between Charleston and Dongnong 594 by mixed linear model approach. 11 QTL with additive effects for oil content were mapped in the linkage groups A1, A2, B1, C2, D1a, D1b, F, H, and O. 15 QTL pairs with epistatic effects for oil content in the RIL were detected, and the general phenotypic variation was 17.84%. 9 QTL were detected from QTL× environment interaction, and the general contribution was 5.76%.

【基金】 国家高技术研究发展计划(863计划)项目(2006AA10Z1F4);引进国际先进农业科学技术计划(948计划)项目(2006G01);黑龙江省教育厅科技研究项目(10551029);黑龙江省博士后科研启动基金(LHK-04014)
  • 【文献出处】 作物学报 ,Acta Agronomica Sinica , 编辑部邮箱 ,2008年06期
  • 【分类号】S565.1
  • 【被引频次】31
  • 【下载频次】262
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