Phylogeny of the Drosophila obscura species group deduced from mitochondrial DNA sequences
1994
Barrio, E. | Latorre, A. | Moya, A.
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., affinis and pseudoobscura), whereas the obscura subgroup remains heterogeneous assemblage that could be reasonably subdivided into at least two complexes (i.e., subobscura and obscura).
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