亚洲黑眶蟾蜍（黑眶蟾蜍）的物种形成与历史入侵

Speciation and historical invasions of the Asian black-spined toad (Duttaphrynus melanostictus).

作者信息

Dufresnes Christophe, Jablonski Daniel, Ambu Johanna, Prasad Vishal Kumar, Bala Gautam Kumudani, Kamei Rachunliu G, Mahony Stephen, Hofmann Sylvia, Masroor Rafaqat, Alard Bérénice, Crottini Angelica, Edmonds Devin, Ohler Annemarie, Jiang Jianping, Khatiwada Janak R, Gupta Sandeep Kumar, Borzée Amaël, Borkin Leo J, Skorinov Dmitriy V, Melnikov Daniel A, Milto Konstantin D, Konstantinov Evgeny L, Künzel Sven, Suchan Tomasz, Arkhipov Dmitriy V, Trofimets Alexei V, Nguyen Tan Van, Suwannapoom Chatmongkon, Litvinchuk Spartak N, Poyarkov Nikolay A

机构信息

Laboratory for Amphibian Systematics and Evolutionary Research, College of Ecology and Environment, Nanjing Forestry University, Nanjing, Jiangsu, People's Republic of China.

Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, EPHE-PSL, Université des Antilles, 55 rue Buffon, CP 51, Paris, France.

出版信息

Nat Commun. 2025 Jan 7;16(1):298. doi: 10.1038/s41467-024-54933-4.

DOI:10.1038/s41467-024-54933-4

PMID:39774107

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11706960/

Abstract

Animal translocations provide striking examples of the human footprint on biodiversity. Combining continental-wide genomic and DNA-barcoding analyses, we reconstructed the historical biogeography of the Asian black-spined toad (Duttaphrynus melanostictus), a toxic commensal amphibian that currently threatens two biodiversity hotspots through biological invasions (Wallacea and Madagascar). The results emphasize a complex diversification shaped by speciation and mitochondrial introgression that comprises two distinct species. One species (true D. melanostictus) is distributed in the Indian subcontinent and is invasive in Wallacea. The other species, whose nomenclature remains unsettled, diverged from D. melanostictus in the Miocene era (~7 Mya) and diversified across Southeast Asia, from where it was introduced to Madagascar. Remarkably, the Indonesian population of D. melanostictus was recently established from India, which suggests historical, possibly human-assisted dispersal across the Bay of Bengal, reflecting the centuries-old connection between these regions.

摘要

动物迁移为人类在生物多样性方面留下的印记提供了显著例证。通过结合全大陆范围的基因组和DNA条形码分析，我们重建了亚洲黑眶蟾蜍（Duttaphrynus melanostictus）的历史生物地理学，这是一种有毒的共生两栖动物，目前正通过生物入侵对两个生物多样性热点地区（华莱士区和马达加斯加）构成威胁。研究结果强调了一个由物种形成和线粒体基因渗入塑造的复杂多样化过程，该过程包含两个不同的物种。一个物种（真正的黑眶蟾蜍）分布在印度次大陆，并入侵了华莱士区。另一个物种，其命名尚未确定，在中新世时期（约700万年前）与黑眶蟾蜍分化，并在东南亚地区多样化，后从东南亚被引入马达加斯加。值得注意的是，印度尼西亚的黑眶蟾蜍种群最近是由印度迁移而来的，这表明存在历史上可能是人类协助的跨孟加拉湾扩散现象，反映了这些地区之间数百年的联系。