Open AccessMultiple cases of asymmetric introgression among horseshoe bats detected by phylogenetic conflicts across loci
Author(s) -
Mao Xiuguang,
Thong Vu D.,
Bates Paul J. J.,
Jones Gareth,
Zhang Shuyi,
Rossiter Stephen J.
Publication year - 2013
Publication title -
biological journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.906
H-Index - 112
eISSN - 1095-8312
pISSN - 0024-4066
DOI - 10.1111/bij.12138
Subject(s) - biology , introgression , zoology , paraphyly , coalescent theory , subspecies , taxon , sister group , lineage (genetic) , sympatric speciation , evolutionary biology , phylogenetic tree , ecology , clade , genetics , gene
Phylogenetic discordance among taxa can provide powerful insights into past episodes of introgressive hybridization, as well as lineage sorting. Previously, we showed that the taxonomically distinct taxon R hinolophus sinicus septentrionalis has undergone historical introgression with its sympatric sister subspecies R hinolophus sinicus sinicus . To examine in more detail the extent of gene flow between these two taxa, and also between these and their sister species R hinolophus thomasi , we obtained new samples from C hina, M yanmar, and V ietnam, and combined new and published genetic data from these, R hinolophus rouxii , and R hinolophus indorouxii from I ndia. Phylogenetic analyses revealed three separate cases of discordance: between R . s. septentrionalis and adjacent populations of R . s. sinicus , between R . s. septentrionalis and R . thomasi and between eastern populations of R . s. sinicus and a newly‐identified lineage. In both former cases, the mitochondrial DNA introgression appears to be asymmetric, which is likely to have resulted from mating between R . s. septentrionalis females with smaller R . s. sinicus and R . thomasi males, although we cannot rule out other scenarios completely. Further conflicts between genetic data and accepted species arrangements across the genus, with paraphyly of members of the rouxii ‐group, suggest the need for a thorough systematic revision of relationships within this group. © 2013 The Linnean Society of London, Biological Journal of the Linnean Society , 2013, 110 , 346–361.