DU Jing,LI Wen-xia,DONG Quan-zhong,et al.Genetic Analysis and QTL Mapping on Vertical Distribution of Pod Number in Soybean[J].Soybean Science,2019,38(03):360-370.[doi:10.11861/j.issn.1000-9841.2019.03.0360]
大豆荚数垂直分布的遗传分析与QTL定位
- Title:
- Genetic Analysis and QTL Mapping on Vertical Distribution of Pod Number in Soybean
- Keywords:
- Soybean; Pod number; Vertical distribution; Genetic analysis; QTL
- 文献标志码:
- A
- 摘要:
- 大豆荚数类型和空间分布决定产量的形成。以有一个共同亲本的两个重组自交系群体为遗传材料,按照植株的上、中、下3个部位调查一粒荚、二粒荚、三粒荚和四粒荚的数量,采用完备复合区间作图法进行QTL定位。结果表明:在两个群体中一粒荚、二粒荚、三粒荚、四粒荚在空间分布存在极显著的变异,部位间不同豆荚类型组成有显著差异,并且两个群体不同类型豆荚在不同部位分布的遗传基础不同,共检测到59个控制荚数性状的QTL,解释了0~11.45%的表型变异;两个群体检测到的荚数QTL中有30个QTL是本研究首次发现的。
- Abstract:
- The type of pod containing one, two, three and four seeds and vertical distribution of number decided the formation of yield in soybean. In this research two recombinant inbred lines populations with one common parent were used to detect QTL by combining a SSR linkage map and the phenotypic data of number one-, two-, three- and four-seed pod in upper, middle and lower part of main stem through inclusive compositive interval mapping method. The result showed that there were significant variations for the number one-, two-, three- and four-seed pods among upper, middle and lower part and the genetic basement controlling vertical distribution of pod number between two populations was different. There were 59 QTL controlling pod number with PVE of 0-11.45% in two populations. Among all QTLs, 30 were novelly discoveried.
参考文献/References:
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备注/Memo
收稿日期:2019-01-24