Tracing the radiation of Maniola (Nymphalidae) butterflies: new insights from phylogeography hint at one single incompletely differentiated species complex

Ecology and Evolution

Angelina J. Kreuzinger¹  Konrad Fiedler¹  Harald Letsch¹ 

[1] Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria

关键词: Biogeography;    DNA barcoding;    endemism;    expansion routes;    phylogeny;    speciation;    species delimitation;   

DOI  :  10.1002/ece3.1338

来源: Wiley

【 摘 要 】

Abstract

The use of DNA sequence data often leads to the recognition of cryptic species within putatively well-known taxa. The opposite case, detecting less diversity than originally described, has, however, far more rarely been documented. Maniola jurtina, the Meadow Brown butterfly, occurs all over Europe, whereas all other six species in the genus Maniola are restricted to the Mediterranean area. Among them, three are island endemics on Sardinia, Cyprus, and Chios, respectively. Maniola species are almost indistinguishable morphologically, and hybridization seems to occur occasionally. To clarify species boundaries and diversification history of the genus, we reconstructed the phylogeography and phylogeny of all seven species within Maniola analyzing 138 individuals from across its range using mitochondrial and nuclear genetic markers. Examination of variation in mitochondrial and nuclear DNA surprisingly revealed a case of taxonomic “oversplitting”. The topology of the recovered phylogenetic tree is not consistent with accepted taxonomy, but rather reveals haplotype clades that are incongruent with nominal species boundaries: instead of seven species, we recognized only two major, yet incompletely segregated, lineages. Our results are consistent with the hypothesis that Maniola originated in Africa. We suggest that one lineage dispersed over the Strait of Gibraltar and the Iberian Peninsula to the west of Europe, while the other lineage spreads eastward through Asia Minor and over the Bosporus to Eastern Europe.

【 授权许可】

CC BY   
© 2014 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.

Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.