Phylogeny of the Drosophila obscura species group deduced from mitochondrial DNA sequences |
| |
Authors: | Eladio Barrio Amparo Latorre Andrés Moya |
| |
Affiliation: | (1) Departament de Genètica, Facultat de Biologia, Universitat de València, C/Dr. Moliner, 50, 46100-Burjassot València, Spain;(2) Present address: Department of Ecology and Evolutionary Biology, University of California, 92717 Irvine, CA, USA |
| |
Abstract: | Approximately 2 kb corresponding to different regions of the mtDNA of 14 different species of the obscura group of Drosophila have been sequenced. In spite of the uncertainties arising in the phylogenetic reconstruction due to a restrictive selection toward a high mtDNA A+T content, all the phylogenetic analysis carried out clearly indicate that the obscura group is formed by, at least, four well-defined lineages that would have appeared as the consequence of a rapid phyletic radiation. Two of the lineages correspond to monophyletic subgroups (i.e., afftnis and pseudoobscura), whereas the obscura subgroup remains heterogeneous assemblage that could be reasonably subdivided into at least two complexes (i.e., subobscura and obscura). |
| |
Keywords: | Mitochondrial DNA Nucleotide sequences Drosophila Rapid phyletic radiation Molecular phylogeny |
本文献已被 SpringerLink 等数据库收录! |
|