Dataset Information

Genome-wide signatures of local adaptation among seven stoneflies species along a nationwide latitudinal gradient in Japan.

ABSTRACT: BACKGROUND:Environmental heterogeneity continuously produces a selective pressure that results in genomic variation among organisms; understanding this relationship remains a challenge in evolutionary biology. Here, we evaluated the degree of genome-environmental association of seven stonefly species across a wide geographic area in Japan and additionally identified putative environmental drivers and their effect on co-existing multiple stonefly species. Double-digest restriction-associated DNA (ddRAD) libraries were independently sequenced for 219 individuals from 23 sites across four geographical regions along a nationwide latitudinal gradient in Japan. RESULTS:A total of 4251 candidate single nucleotide polymorphisms (SNPs) strongly associated with local adaptation were discovered using Latent mixed models; of these, 294 SNPs showed strong correlation with environmental variables, specifically precipitation and altitude, using distance-based redundancy analysis. Genome-genome comparison among the seven species revealed a high sequence similarity of candidate SNPs within a geographical region, suggesting the occurrence of a parallel evolution process. CONCLUSIONS:Our results revealed genomic signatures of local adaptation and their influence on multiple, co-occurring species. These results can be potentially applied for future studies on river management and climatic stressor impacts.

SUBMITTER: Gamboa M

PROVIDER: S-EPMC6346529 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Genome-wide signatures of local adaptation among seven stoneflies species along a nationwide latitudinal gradient in Japan.

Gamboa Maribet M Watanabe Kozo K

BMC genomics 20190124 1

<h4>Background</h4>Environmental heterogeneity continuously produces a selective pressure that results in genomic variation among organisms; understanding this relationship remains a challenge in evolutionary biology. Here, we evaluated the degree of genome-environmental association of seven stonefly species across a wide geographic area in Japan and additionally identified putative environmental drivers and their effect on co-existing multiple stonefly species. Double-digest restriction-associa ...[more]

PMID: 30678640

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Dataset Information

Genome-wide signatures of local adaptation among seven stoneflies species along a nationwide latitudinal gradient in Japan.

Publications

Genome-wide signatures of local adaptation among seven stoneflies species along a nationwide latitudinal gradient in Japan.

Similar Datasets

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