Chromosomal phylogeny of Vampyressine bats (Chiroptera, Phyllostomidae) with description of two new sex chromosome systems

BMC Evolutionary Biology

Research Article

Malcolm Andrew Ferguson-Smith¹  Patricia Caroline Mary O’Brien¹  Fengtang Yang²  Talita Fernanda Augusto Ribas³  Anderson José Baia Gomes³  Cleusa Yoshiko Nagamachi³  Julio Cesar Pieczarka³  Thayse Cristine Melo Benathar³  Luis Reginaldo Ribeiro Rodrigues⁴ 

[1] Cambridge Resource Centre for Comparative Genomics, University of Cambridge Department of Veterinary Medicine, Cambridge, UK;Cytogenetics Facility, Welcome Trust Sanger Institute, Hinxton, South Cambridgeshire, UK;Laboratório de Citogenética, CEABIO, ICB, Universidade Federal do Pará, Belém, Brazil;Laboratório de Genética e Biodiversidade, ICED, Universidade Federal do Oeste do Pará, Santarém, Brazil;

关键词: Chromosome phylogeny;    Chromosome painting;    Subtribe Vampyressina;    Compound sex chromosome system;    Sex determination;   

DOI  :  10.1186/s12862-016-0689-x

 received in 2015-10-29, accepted in 2016-05-23,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundThe subtribe Vampyressina (sensu Baker et al. 2003) encompasses approximately 43 species and seven genera and is a recent and diversified group of New World leaf-nosed bats specialized in fruit eating. The systematics of this group continues to be debated mainly because of the lack of congruence between topologies generated by molecular and morphological data. We analyzed seven species of all genera of vampyressine bats by multidirectional chromosome painting, using whole-chromosome-painting probes from Carollia brevicauda and Phyllostomus hastatus. Phylogenetic analyses were performed using shared discrete chromosomal segments as characters and the Phylogenetic Analysis Using Parsimony (PAUP) software package, using Desmodontinae as outgroup. We also used the Tree Analysis Using New Technology (TNT) software.ResultsThe result showed a well-supported phylogeny congruent with molecular topologies regarding the sister taxa relationship of Vampyressa and Mesophylla genera, as well as the close relationship between the genus Chiroderma and Vampyriscus.ConclusionsOur results supported the hypothesis that all genera of this subtribe have compound sex chromosome systems that originated from an X-autosome translocation, an ancestral condition observed in the Stenodermatinae. Additional rearrangements occurred independently in the genus Vampyressa and Mesophylla yielding the X1X1X2X2/X1X2Y sex chromosome system. This work presents additional data supporting the hypothesis based on molecular studies regarding the polyphyly of the genus Vampyressa and its sister relationship to Mesophylla.

【 授权许可】

CC BY   
© The Author(s). 2016