Hybrid origin of European Vipers (Vipera magnifica and Vipera orlovi) from the Caucasus determined using genomic scale DNA markers

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• 作者：Oleksandr Zinenko ; Michael Sovic ; Ulrich Joger ; H. Lisle Gibbs
• 关键词：RADSeq ; Patterson D ; statistic ; Bayesian clustering ; Gene introgression ; V. kaznakovi ; V. renardi
• 刊名：BMC Evolutionary Biology
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：16
• 期：1
• 全文大小：1,183 KB
• 刊物主题：Evolutionary Biology; Animal Systematics/Taxonomy/Biogeography; Entomology; Genetics and Population Dynamics; Life Sciences, general;
• 出版者：BioMed Central
• ISSN：1471-2148

文摘

Background Studying patterns of introgression can illuminate the role of hybridization in speciation, and help guide decisions relevant to the conservation of rare taxa. Vipera magnifica and Vipera orlovi are small vipers that have high conservation status due to their rarity and restricted distributions in an area of the Caucasus region where two other related species are present – V. kaznakovi and V. renardi. Despite numerous observations of hybridization between different species of small vipers, and the potential of a hybrid origin for V. magnifica and V. orlovi based on their distribution with respect to V. kaznakovi and V. renardi, hypotheses of a hybrid origin have not been formally tested. Here we generate genomic-scale data by performing next generation sequencing of double digest restriction-site associated DNA libraries, and use these multilocus data to test whether these two species are of hybrid origin.