马尔代夫半爪壁虎的身份和可能的起源

IF 1.1 4区 生物学 Q3 ZOOLOGY Herpetological Journal Pub Date : 2019-10-01 DOI:10.33256/29.4.230236
Ishan Agarwal
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引用次数: 5

摘要

马尔代夫是全新世起源的珊瑚礁岛屿,没有特有的陆生爬行动物。该地区报告的少数物种与斯里兰卡、南亚和东南亚有亲缘关系,被认为是相对较新的人类引入物种。最近从马尔代夫采集的半指壁虎使我们能够识别和重建该属在岛屿上的可能起源。我们将新收集的线粒体DNA(ND2)序列数据与已发表的序列相结合,以重建进化关系。马尔代夫的两种半指龙是H.frenatus和H.parvimaculatus,分别与东南亚和斯里兰卡有亲缘关系。暗示着多次引入,每个物种都包括多个单倍型,其中只有一个以前有记录(在斯里兰卡);其他单倍型显示出与东南亚记录的相似性。要解开马尔代夫家壁虎的定居模式,需要对广泛分布的源物种的自然变异有更全面的了解。
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The identity and probable origin of the Hemidactylus geckos of the Maldives
The Maldives are coral reef islands of Holocene origin with no endemic terrestrial herpetofauna. The few species that have been reported from the region have affinities with Sri Lanka, south and south-east Asia, and are considered relatively recent introductions by humans. Recent collections of Hemidactylus geckos from the Maldives allowed us to identify and reconstruct the probable origin of this genus on the islands. We combine mitochondrial DNA (ND2) sequence data for the new collections with published sequences to reconstruct evolutionary relationships. The two species of Hemidactylus in the Maldives are H. frenatus and H. parvimaculatus, with affinities to south-east Asia and Sri Lanka, respectively. Suggestive of multiple introductions, each species included multiple haplotypes, only one of which was previously recorded (in Sri Lanka); other haplotypes showed similarities to records from south-east Asia. Unravelling the colonisation patterns of house geckos in the Maldives requires a more complete knowledge of the natural variation across the range of the widely distributed source species.
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来源期刊
Herpetological Journal
Herpetological Journal 生物-动物学
CiteScore
2.40
自引率
10.00%
发文量
25
审稿时长
>12 weeks
期刊介绍: The Herpetological Journal is the Society''s prestigious quarterly scientific journal.
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