Phylogenetic relationships and ancestral areas of the bustards (Gruiformes: Otididae), inferred from mitochondrial DNA and nuclear intron sequences

Mol Phylogenet Evol. 2002 Apr;23(1):63-74. doi: 10.1006/mpev.2001.1078.

Abstract

The taxonomy of the bustards is poorly understood phylogenetically and has not been extensively evaluated using molecular methods. We sequenced part of the mitochondrial cytochrome b gene, the control region (central domain II), and an intron-exon crossing fragment of the nuclear chromo-helicase-DNA binding gene (CHD1) in 27 bustard taxa (including multiple subspecies) representing 11 genera and four gruiform outgroup species. Molecular datings suggest a Miocene origin for the family. Inferred phylogenetic relationships include the following: (i) the basal polytomy consists of 10 branches (mostly consistent with traditional genera), suggesting a rapid early radiation; (ii) sister relationships between several couplets of genera include Ardeotis with Neotis, Afrotis with Eupodotis (excluding E. rueppellii), Otis with Chlamydotis, and Houbaropsis with Sypheotides; (iii) the genus Eupodotis may be polyphyletic; and (iv) the currently delimited genera Ardeotis and Neotis do not form independent monophyletic lineages. Molecular evidence for the Afro-tropical origin of the Otididae is provided.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Base Sequence
  • Birds / classification*
  • Birds / genetics*
  • Cytochrome b Group / genetics
  • DNA / chemistry
  • DNA / genetics
  • DNA, Mitochondrial / chemistry
  • DNA, Mitochondrial / genetics*
  • Evolution, Molecular*
  • Genetic Variation
  • Introns / genetics*
  • Phylogeny*
  • Polymerase Chain Reaction

Substances

  • Cytochrome b Group
  • DNA, Mitochondrial
  • DNA