Selection on standing genetic variation mediates convergent evolution in extremophile fish
Selection on standing genetic variation mediates convergent evolution in extremophile fish
复制标题
对常存遗传变异的选择介导极端微生物鱼类的趋同进化
DOI:
10.1111/mec.17081
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发表时间:
2023
影响因子:
4.9
通讯作者:
Kelley, Joanna L.
中科院分区:
文献类型:
--
作者:
Ryan, Kara;Greenway, Ryan;Landers, Jake;Arias‐Rodriguez, Lenin;Tobler, Michael;Kelley, Joanna L.
Hydrogen sulfide is a toxic gas that disrupts numerous biological processes, including energy production in the mitochondria, yet fish in thePoecilia mexicanaspecies complex have independently evolved sulfide tolerance several times. Despite clear evidence for convergence at the phenotypic level in these fishes, it is unclear if the repeated evolution of hydrogen sulfide tolerance is the result of similar genomic changes. To address this gap, we used a targeted capture approach to sequence genes associated with sulfide processes and toxicity from five sulfidic and five nonsulfidic populations in the species complex. By comparing sequence variation in candidate genes to a reference set, we identified similar population structure and differentiation, suggesting that patterns of variation in most genes associated with sulfide processes and toxicity are due to demographic history and not selection. But the presence of tree discordance for a subset of genes suggests that several loci are evolving divergently between ecotypes. We identified two differentiation outlier genes that are associated with sulfide detoxification in the mitochondria that have signatures of selection in all five sulfidic populations. Further investigation into these regions identified long, shared haplotypes among sulfidic populations. Together, these results reveal that selection on standing genetic variation in putatively adaptive genes may be driving phenotypic convergence in this species complex.
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DOI:
--
发表时间:
2010
期刊:
Die Naturwissenschaften
影响因子:
--
作者:
R. Riesch;M. Plath;F. J. García de León;I. Schlupp
通讯作者:
I. Schlupp
影响因子:
3.7
作者:
Margaretha A. Veltman;J. Flowers;J. Flowers;Tinde van Andel;Tinde van Andel;M. Schranz
通讯作者:
Margaretha A. Veltman;J. Flowers;J. Flowers;Tinde van Andel;Tinde van Andel;M. Schranz
影响因子:
3.3
作者:
Alan R. Templeton;K. Crandall;C. Sing
通讯作者:
Alan R. Templeton;K. Crandall;C. Sing
影响因子:
2.5
作者:
M. Tobler;Logan Hastings
通讯作者:
Logan Hastings
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
E. Schultz
通讯作者:
E. Schultz