Molecular systematics of the Drosophila hydei subgroup as inferred from mitochondrial DNA sequences

Greg S. Spicer, Scott Pitnick

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The phylogeny of the Drosophila hydei subgroup, which is a member of the D. repleta species group, was inferred from 1,515 base pairs of mitochondrial DNA sequence of the cytochrome oxidase subunits I, II, and III. Four of the seven species in the subgroup were examined, which are placed into two taxonomic complexes: the D. bifurca complex (D. bifurca and D. nigrohydei) and the D. hydei complex (D. hydei and D. eohydei). Both complexes appear to be monophyletic, although the D. bifurca complex is only weakly supported. The evolution of chromosomal change, interspecific crossability, sperm gigantism, and divergence times of the subgroup is discussed in a phylogenetic context.

Original languageEnglish (US)
Pages (from-to)281-286
Number of pages6
JournalJournal of Molecular Evolution
Volume43
Issue number3
DOIs
StatePublished - Jan 1 1996

Keywords

  • Cytochrome oxidase
  • DNA sequence variation
  • Maximum likelihood
  • Molecular clock
  • Γ-distributed rates model

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics

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