Impact of epistasis and QTL x environment interaction on the accumulation of seed mass of soybean (Glycine max L. Merr.)
文献类型: 外文期刊
第一作者: Han, Yingpeng
作者: Han, Yingpeng;Teng, Weili;Sun, Desheng;Du, Yuping;Li, Wenbin;Qiu, Lijuan;Han, Yingpeng;Xu, Xiangling
作者机构:
关键词: quantitative trait locus;developmental stage;environment interaction;epistasis impact;seed mass accumulation
期刊名称:GENETICS RESEARCH ( 影响因子:1.588; 五年影响因子:1.263 )
ISSN:
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收录情况: SCI
摘要: The accumulation of seed mass in soybean is affected by both genotype and environment. The aim of the present study was to measure additive, epistatic and quantitative trait locus (QTL) x environment (QE) interaction effects of QTLs on the development of 100-seed weight ill a population of 143 F-5 derived recombinant inbred lines (RILs) developed from the cross between the soybean cultivars 'Charleston' and 'Dong Nong 594'. Broad-sense heritability of 100-seed weight from 30 days (30D) to 80D stages was 0.58, 0.52, 0.62, 0.60, 0.66 and 0.57, respectively. A total of 17 QTLs with conditional additive (a) effect and/or conditional additive x environment interaction (ae) effect at specific stages were identified in ten linkage groups by conditional mapping. Of them, only 4 QTLs had significant a effect or ae effect at different stages of seed development. Among QTLs with significant a effect, five acted positively and six acted negatively oil seed development. A total of 35 epistatic pairwise QTLs of 100-seed weight were identified by conditional mapping at different developmental stages. Five pairs of QTL showed the additive x additive epistatic (aa) effect and 16 QTLs showed the aa x environment interaction (aae) effect at the different developmental stages. QTLs with aa effect as well with their environmental interaction effect appeared to vary at different developmental stages. Overall, the results indicated that 100-seed weight in soybean is under developmental, genetic and environmental control.
分类号: Q3`R394`Q3
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