publication . Article . Other literature type . 2004

Molecular phylogeny and morphological change in the Psittacula parakeets.

R A Nichols; Michael Bruford;
Restricted English
  • Published: 01 Apr 2004
  • Publisher: Elsevier
  • Country: United Kingdom
We reconstruct a phylogeny of the African and Asian Psittacula parakeets using approximately 800 bp of mitochondrial cytochrome b sequence to examine their evolutionary relationships in reference to their head plumage and major morphological tail innovations. Our phylogeny identifies three groups, whose distinctiveness is also apparent from their possession of three different head plumage characters: a neck ring, a distinctive colouration of the head, and a 'moustache'-shaped pattern that extends from the chin to the cheek. We examine the extent of sexual dimorphism in tail length across the phylogeny and reveal large differences between closely related forms. W...
free text keywords: GE, GN, Genetics, Ecology, Evolution, Behavior and Systematics, Molecular Biology
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