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利用 RAD-Seq SNP 标记揭示日本有明湾刀鲚遗传多样性和种群结构。

Genetic diversity and population structure of razor clam Sinonovacula constricta in Ariake Bay, Japan, revealed using RAD-Seq SNP markers.

机构信息

Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga, 840-8502, Japan.

Analytical Research Center for Experimental Sciences, Saga University, 1 Honjo-machi, Saga, 840-8502, Japan.

出版信息

Sci Rep. 2021 Apr 8;11(1):7761. doi: 10.1038/s41598-021-87395-5.

DOI:10.1038/s41598-021-87395-5
PMID:33833337
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8032755/
Abstract

The razor clam Sinonovacula constricta is a commercially important bivalve in Japan. The current distribution of this species in Japan is limited to Ariake Bay, where the fishery stock is declining. It is necessary to understand the genetic population structure of this species in order to restore the fishery stock while preserving the genetic diversity of the clam. Here, we report for the first time the genetic population structure of S. constricta in Ariake Bay, Japan. Paired-end restriction site-associated DNA sequencing (RAD-Seq) analyzed samples of S. constricta collected from seven mudflats located along Ariake Bay. Two different genetic populations exist in Ariake Bay, one inhabiting wild habitats and the other inhabiting the transplanted area of artificial seedlings. Our results suggest that genetic differentiation occurred between these two populations (F value = 0.052), and a high level of genetic differentiation is maintained between the two groups. In the future, monitoring the interbreeding status of the two genetically distinct populations and the genetic differentiation within each population is important for conserving the genetic diversity of S. constricta in Japan.

摘要

光滑河蓝蛤是日本一种重要的商业双壳贝类。目前，该物种在日本的分布仅限于有明海，而该海域的渔业资源正在减少。为了恢复渔业资源，同时保护蛤的遗传多样性，有必要了解该物种的遗传种群结构。在这里，我们首次报道了日本有明海光滑河蓝蛤的遗传种群结构。通过对从有明湾七个泥滩采集的光滑河蓝蛤样本进行成对限制位点相关 DNA 测序（RAD-Seq）分析。有明湾存在两个不同的遗传种群，一个栖息在野生栖息地，另一个栖息在人工苗移植区。我们的研究结果表明，这两个种群之间发生了遗传分化（F 值=0.052），并且两个群体之间保持着高水平的遗传分化。未来，监测这两个具有遗传差异的种群的杂交状况以及每个种群内的遗传分化对于保护日本光滑河蓝蛤的遗传多样性非常重要。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff55/8032755/30286ad34cf7/41598_2021_87395_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff55/8032755/0416359774d2/41598_2021_87395_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff55/8032755/060f3b3495a9/41598_2021_87395_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff55/8032755/b976bb0cfd91/41598_2021_87395_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff55/8032755/069386528e0a/41598_2021_87395_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff55/8032755/30286ad34cf7/41598_2021_87395_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff55/8032755/0416359774d2/41598_2021_87395_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff55/8032755/060f3b3495a9/41598_2021_87395_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff55/8032755/b976bb0cfd91/41598_2021_87395_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff55/8032755/069386528e0a/41598_2021_87395_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff55/8032755/30286ad34cf7/41598_2021_87395_Fig5_HTML.jpg

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