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Molecular characterization of spiny hedgehogs of the Iberian Peninsula: the missing link in the postglacial colonization of the western European hedgehog
Mammal Research ( IF 1.5 ) Pub Date : 2021-01-14 , DOI: 10.1007/s13364-020-00550-7
Nuria Sanz , Oriol Vidal , Sergi García , Rafael Molina , Rosa-Maria Araguas

The western European hedgehog Erinaceus europaeus is the most representative species among spiny Iberian hedgehogs. The Algerian hedgehog Atelerix algirus and the four-toed hedgehog Atelerix albiventris are other spiny hedgehogs that can be found on the Iberian Peninsula. Whereas A. algirus has a limited distribution in a narrow stretch of east Iberia and a doubtful native/introduced origin, A. albiventris is considered an exogenous species potentially introduced because of their commercialization as pets. Because all three species are kept in captivity, we may found unpredictable phenotypic appearance of breeding specimens, making the use of molecular markers necessary to unequivocally identify hedgehog species. We used two mitochondrial genes (cytochrome b and ribosomal 12S) to identify species that distributed on the Iberian Peninsula. We identified some Algerian hedgehogs, A. algirus, and delimited the current distribution of this specie to the eastern Iberian coast from Barcelona southwards. We found a few A. albiventris exemplars in natural populations, which represent the first record of this exotic species in Europe. We focused on gene diversity and phylogenetic analyses of the most abundant species E. europaeus and aimed to reconstruct phylogenetic relationships and putative routes of colonization from the Iberian glacial refuges. We found two divergent lineages of an ancient origin with a geographical pattern of distribution delimited by the Ebro River. The northeast lineage was indicated as the glacial refuge that contributed to a rapid postglacial colonization of west Europe from the Iberian Peninsula.



中文翻译:

伊比利亚半岛刺猬的分子特征:西欧刺猬在冰川后定居中的缺失环节

西欧刺猬Erinaceus europaeus是多刺伊比利亚刺猬中最具代表性的物种。阿尔及利亚刺猬Atelerix algirus和四趾刺猬Atelerix albiventris是伊比利亚半岛上的其他刺猬。而A. algirus在伊比利亚半岛东部的狭长和可疑本地/出台起源,有限的通讯A. albiventris由于被商业化为宠物,因此被认为是潜在引入的外来物种。由于这三个物种都被圈养,我们可能会发现繁殖标本的表型无法预测,因此需要使用分子标记明确识别刺猬物种。我们使用了两个线粒体基因(细胞色素b和核糖体12S)来鉴定分布在伊比利亚半岛上的物种。我们确定了一些阿尔及利亚刺猬A. algirus,并将该物种的当前分布从巴塞罗那向南划定到伊比利亚东部海岸。我们发现了一些白僵菌自然种群中的样本,代表了欧洲这种外来物种的第一个记录。我们专注于欧洲最丰富物种E.europaeus的基因多样性和系统发育分析,旨在从伊比利亚冰川避难所重建系统发育关系和推定的定殖途径。我们发现了两个古老的发散世系,其地理分布格局由埃布罗河划定。东北血统被认为是冰川避难所,它促成伊比利亚半岛在西欧发生了快速的冰川后殖民。

更新日期:2021-01-14
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