日本四国岛野生浣熊种群的遗传多样性和结构

IF 0.8 4区 生物学 Q3 ZOOLOGY Mammal Study Pub Date : 2022-06-09 DOI:10.3106/ms2021-0052
T. Yamashiro, Y. Kaneshiro, A. Yamashiro, M. Maki
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引用次数: 0

摘要

摘要利用线粒体控制区序列和10个多态性微卫星位点,研究了引进日本四国岛的外来入侵物种——原种浣熊的遗传多样性和种群遗传结构。在80个被检查的个体中,我们检测到两个基因上不同的单倍型,这表明两个母系已经被引入四国岛。群体聚类分析表明该地区不存在遗传结构。亲缘关系网络表明,四国岛的浣熊种群由亲缘关系密切的个体组成。四国浣熊种群的遗传多样性低于本地区。这些结果和之前的一份报告表明,四国浣熊的种群很可能是由最初入侵种群的少量创始者扩大而来的。香川县以外的浣熊捕获量正在减少,尽管过去在德岛和爱媛县的扩张表明这些地区之间没有地理障碍。因此,应该采取行动,防止香川的浣熊种群再次扩大。需要加强监测和消除香川的分散者,并努力消除香川扩张的潜在来源人群。
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The Genetic Diversity and Structure of the Feral Raccoon (Procyon lotor) Population in Shikoku Island, Japan
Abstract. We explored the genetic diversity and population genetic structure of an invasive alien species, the raccoon Procyon lotor, which was introduced into the Shikoku Island of Japan, using sequences of the mitochondrial control region and 10 polymorphic microsatellite loci. In 80 individuals examined, we detected two genetically divergent haplotypes, indicating that two maternal lineages had been introduced into Shikoku Island. Population clustering analysis suggested the nonexistence of genetic structure in the area. The relatedness network showed that the raccoon population in Shikoku Island consisted of closely related individuals. The genetic diversity of the Shikoku raccoon population was lower than that in the native range. These results and a prior report indicate that the Shikoku raccoon population is likely to have expanded from small numbers of founders originating from an initial invasive population. Raccoon captures outside Kagawa are decreasing, although past expansions into Tokushima and Ehime suggest that there are no geographical barriers among these areas. Therefore, action should be taken to prevent any re-expansion of the raccoon population in Kagawa. Intensive monitoring and the elimination of dispersers from Kagawa, as well as effort to eradicate potential source populations for expansion in Kagawa, are needed.
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来源期刊
Mammal Study
Mammal Study ZOOLOGY-
CiteScore
1.70
自引率
20.00%
发文量
23
审稿时长
>12 weeks
期刊介绍: Mammal Study is the official journal of the Mammal Society of Japan. It publishes original articles, short communications, and reviews on all aspects of mammalogy quarterly, written in English.
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