期刊
PLANT BREEDING
卷 140, 期 2, 页码 254-266出版社
WILEY
DOI: 10.1111/pbr.12900
关键词
maturity genes; plant height; protein yield; QTL mapping; seed yield; soybean
资金
- Bundesministerium fur Ernahrung und Landwirtschaft [2814500110, 2814EPS011]
- Bundesministerium fur Bildung und Forschung [031B0339A, 031B0339B]
This study identified key genetic factors associated with seed yield, plant height, protein yield, and thousand-seed weight in early-maturing soybean, with some loci showing pleiotropic effects on multiple traits. The E1 and E3 maturity genes, as well as the Dt2 stem growth habit gene, were highlighted as likely candidates underlying these QTL, with implications for marker-assisted selection.
Increasing soybean yield plays a key role in meeting the high demand for protein in Europe and other countries. The aim of this study was to dissect the genetic architecture underlying seed yield, plant height, protein yield and thousand-seed weight in early-maturing soybean. To this end, we performed QTL mapping based on 944 RILs derived from a half-diallel crossing design of five parents. We identified five to eight QTL for each of the four agronomic traits and some explained a considerable proportion of the genotypic variance. The three major QTL showed pleiotropic effects on two or more traits. Fine characterization revealed the maturity genes E1 and E3, and the stem growth habit gene Dt2 as likely candidates underlying these QTL. In general, the allele increasing seed yield also resulted in taller plants, which needs to be considered during selection due to an increased risk of lodging. Collectively, our results underline the strong effect of some loci like the E1 gene on a range of traits including seed yield, making them attractive targets for a marker-assisted selection.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据