The structural variation landscape in 492 Atlantic salmon genomes
The structural variation landscape in 492 Atlantic salmon genomes
复制标题
492 条大西洋鲑鱼基因组的结构变异景观
DOI:
10.1101/2020.05.16.099614
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Bertolotti A
中科院分区:
文献类型:
--
作者:
Bertolotti A
Structural variants (SVs) are a major source of genetic and phenotypic variation, but remain challenging to accurately type and are hence poorly characterized in most species. We present an approach for reliable SV discovery in non-model species using whole genome sequencing and report 15,483 high-confidence SVs in 492 Atlantic salmon (Salmo salarL.) sampled from a broad phylogeographic distribution. These SVs recover population genetic structure with high resolution, include an active DNA transposon, widely affect functional features, and overlap more duplicated genes retained from an ancestral salmonid autotetraploidization event than expected. Changes in SV allele frequency between wild and farmed fish indicate polygenic selection on behavioural traits during domestication, targeting brain-expressed synaptic networks linked to neurological disorders in humans. This study offers novel insights into the role of SVs in genome evolution and the genetic architecture of domestication traits, along with resources supporting reliable SV discovery in non-model species.
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期刊:
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期刊:
bioRxiv
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DOI:
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发表时间:
2007
期刊:
影响因子:
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作者:
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通讯作者:
筧 三郎