Convergence in form and function overcomes non-parallel evolutionary histories in Arctic charr
Convergence in form and function overcomes non-parallel evolutionary histories in Arctic charr
复制标题
形式和功能的趋同克服了北极红点鲑的非平行进化历史
DOI：
10.1101/265272
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
K. Elmer
中科院分区：
文献类型：
--
作者：
A. Jacobs;Madeleine Carruthers;A. Yurchenko;N. Gordeeva;S. S. Alekseyev;O. Hooker;Jong S Leong;E. Rondeau;B. Koop;C. Adams;K. Elmer
了解进化的可预测程度对于推进生物多样性起源研究至关重要。研究了18个淡水湖泊中北极红点鲑的生态类型演化和两个进化谱系。我们发现显着的表型平行重复，与程度的平行最明显的适应性特征与觅食。对潜在的种群变异进行的全基因组分析揭示了历史人口统计学和基因流动的强烈影响。一些不同的基因组区域显着共享生态型重复，虽然有很高比例的群体特异性变异。生态型在基因表达和生物学途径中的功能分子基础在生态型对之间广泛而显著地共享。这些结果表明，频谱的可预测性，从低的并行性在核苷酸水平上的高并行性的调节分子碱基和功能适应方面的形态，并通过不同的进化路线推进我们的理解平行进化。
Understanding the extent to which evolution is predictable is fundamental to advancing research on biodiversity origins. We studied the evolution of ecotypes in Arctic charr in 18 freshwater lakes and two evolutionary lineages. We find significant phenotypic parallelism across replicates, with the degree of parallelism most pronounced in adaptive traits associated with foraging. Genome-wide analyses of the underlying population variation revealed a strong influence of historical demography and gene flow. Some divergent genomic regions were significantly shared across ecotype replicates, though there was a high proportion of population-specific variation. Functional molecular bases to ecotypes in gene expression and biological pathways were extensively and significantly shared across ecotype pairs. These results demonstrate a spectrum of predictability, from low parallelism at the nucleotide level to high parallelism in regulatory molecular bases and functional adaptive aspects of morphology, and advance our understanding of parallel evolution through divergent evolutionary routes.
影响因子：
5.4
作者：
Kusche H;Elmer KR;Meyer A
通讯作者：
Meyer A
影响因子：
7
作者：
Alexander, David H.;Novembre, John;Lange, Kenneth
通讯作者：
Lange, Kenneth