Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13957 |
Contemporary selection on MHC genes in a free-living ruminant population | |
Wei Huang; Kara L. Dicks; Jarrod D. Hadfield; Susan E. Johnston; Keith T. Ballingall; Josephine M. Pemberton | |
2022-01-20 | |
发表期刊 | Ecology Letters
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出版年 | 2022 |
英文摘要 | Genes within the major histocompatibility complex (MHC) are the most variable identified in vertebrates. Pathogen-mediated selection is believed to be the main force maintaining MHC diversity. However, relatively few studies have demonstrated contemporary selection on MHC genes. Here, we examine associations between MHC variation and several fitness measurements including total fitness and five fitness components, in 3400 wild Soay sheep (Ovis aries) monitored between 1989 and 2012. In terms of total fitness, measured as lifetime breeding success of all individuals born, we found haplotypes named C and D were associated with decreased and increased male total fitness respectively. In terms of fitness components, juvenile survival was associated with haplotype divergence while individual haplotypes (C, D and F) were associated with adult fitness components. Consistent with the increased male total fitness, the rarest haplotype D has increased in frequency throughout the study period more than expected under neutral expectations. Our results demonstrate that contemporary natural selection is acting on MHC class II genes in Soay sheep and that the mode of selection on specific fitness components can be different mode from selection on total fitness. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/346006 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Wei Huang,Kara L. Dicks,Jarrod D. Hadfield,et al. Contemporary selection on MHC genes in a free-living ruminant population[J]. Ecology Letters,2022. |
APA | Wei Huang,Kara L. Dicks,Jarrod D. Hadfield,Susan E. Johnston,Keith T. Ballingall,&Josephine M. Pemberton.(2022).Contemporary selection on MHC genes in a free-living ruminant population.Ecology Letters. |
MLA | Wei Huang,et al."Contemporary selection on MHC genes in a free-living ruminant population".Ecology Letters (2022). |
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