Phylogeny and molecular evolution of the Drosophila hydei subgroup (Drosophila repleta group) inferred from the Xanthine dehydrogenase gene

Tomás Morán, Antonio Fontdevila

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

Abstract

The hydei subgroup (Drosophila repleta group) consists of seven species divided into two complexes: bifurca and hydei, whose phylogenetic relationships are not well understood. To evaluate the molecular phylogeny of this subgroup, we analyzed 2085 bp of coding sequence of the Xanthine dehydrogenase gene in six available species of the hydei subgroup, with Drosophila buzzatii and Drosophila mulleri as an outgroup. For phylogenetic reconstruction we adopted a maximum-likelihood framework, based on the adjustment of descriptive models of nucleotide substitution to real data. We employed distance-based and weighted parsimony methods to construct candidate phylogenies. In all cases, we obtained only one completely resolved tree with strong statistical support for each node, that shows a phylogeny that is partially discordant with the proposed systematics of the subgroup. This tree suggests that the two species complexes are paraphyletic, as opposed to classic phylogenies using morphologic and cytologic traits. This discordance is discussed in relation to its implication for the evolutionary history of the hydei subgroup. © 2005 Elsevier Inc. All rights reserved.
Original languageEnglish
Pages (from-to)695-705
JournalMolecular Phylogenetics and Evolution
Volume36
DOIs
Publication statusPublished - 1 Sep 2005

Keywords

  • Drosophila, hydei subgroup
  • Maximum likelihood
  • Molecular clock
  • Molecular evolution
  • Phylogeny
  • Xanthine dehydrogenase

Fingerprint Dive into the research topics of 'Phylogeny and molecular evolution of the Drosophila hydei subgroup (Drosophila repleta group) inferred from the Xanthine dehydrogenase gene'. Together they form a unique fingerprint.

Cite this