Epistasis and the release of genetic variation during long-term selection

被引:214
作者
Carlborg, Ö
Jacobsson, L
Åhgren, P
Siegel, P
Andersson, L
机构
[1] Uppsala Univ, Linnaeus Ctr Bioinformat, SE-75124 Uppsala, Sweden
[2] Swedish Univ Agr Sci, Dept Anim Breeding & Genet, SE-75124 Uppsala, Sweden
[3] Swedish Univ Agr Sci, Dept Med Biochem & Microbiol, SE-75124 Uppsala, Sweden
[4] Virginia Polytech Inst & State Univ, Dept Anim & Poultry Sci, Blacksburg, VA 24061 USA
关键词
D O I
10.1038/ng1761
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
It is an enigma how long-term selection in model organisms and agricultural species can lead to marked phenotypic changes without exhausting genetic variation for the selected trait. Here, we show that the genetic architecture of an apparently major locus for growth in chicken dissects into a genetic network of four interacting loci. The interactions in this radial network mediate a considerably larger selection response than predicted by a single-locus model.
引用
收藏
页码:418 / 420
页数:3
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