期刊
GENOME BIOLOGY AND EVOLUTION
卷 10, 期 6, 页码 1493-1503出版社
OXFORD UNIV PRESS
DOI: 10.1093/gbe/evy102
关键词
salmonids; smoltification; RADseq; migratory behavior; life-history strategy
资金
- Academy of Finland [286261, 266321]
- AXA Research Fund
- Estonian Ministry of Education and Research [SF1080022s07, IUT8-2]
- Natural Resources Institute Finland [41007-00008100]
- Academy of Finland (AKA) [286261, 286261] Funding Source: Academy of Finland (AKA)
Candidate genes associated with migration have been identified in multiple taxa: including salmonids, many of whom perform migrations requiring a series of physiological changes associated with the freshwater-saltwater transition. We screened over 5,500 SNPs for signatures of selection related to migratory behavior of brown trout Salmo trutta by focusing on ten differentially migrating freshwater populations from two watersheds (the Koutajoki and the Oulujoki). We found eight outlier SNPs potentially associated with migratory versus resident life history using multiple (>= 3) outlier detection approaches. Comparison of three migratory versus resident population pairs in the Koutajoki watershed revealed seven outlier SNPs, of which three mapped close to genes ZNF665-like, GRM4-like, and PCDH8-like that have been previously associated with migration and smoltification in salmonids. Two outlier SNPs mapped to genes involved in mucus secretion (ST3GAL1-like) and osmoregulation (C14orf37-like). The last two strongly supported outlier SNPs mapped to thermally induced genes (FNTA1-like, FAM134C-like). Within the Oulujoki, the only consistent outlier SNP mapped close to a gene (EZH2) that is associated with compensatory growth in fasted trout. Our results suggest that a relatively small yet common set of genes responsible for physiological functions associated with resident and migratory life histories is evolutionarily conserved.
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