alpha-Crystallin sequences support a galliform/anseriform clade.

G J Caspers; D Uit de Weerd; J Wattel; W W de Jong

doi:10.1006/mpev.1996.0384

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alpha-Crystallin sequences support a galliform/anseriform clade.

G J Caspers·D Uit de Weerd·J Wattel·W W de Jong

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Abstract

An unresolved issue in higher avian systematics is the position of the fowl-like and the duck-like birds, Galliformes and Anseriformes, respectively. Most studies place these orders at the base of the neognath radiation. While DNA hybridization data support a sister-group relationship of Galliformes and Anseriformes, macromolecular sequence analyses have not yet been able to provide a clear-cut answer. In this study, we present nucleotide sequences coding for the eye lens proteins alpha A- and alpha B-crystallin of a palaeognath, a galliform, an anseriform, and two other neognathous birds. Phylogenetic analyses of this data set clearly support a galliform/anseriform clade, to the exclusion of other neognaths.

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Animals Birds Chickens Crystallins DNA Databases, Factual Ducks Evolution, Molecular Molecular Sequence Data Phylogeny Sequence Alignment Species Specificity Comparative Study Journal Article Research Support, Non-U.S. Gov't

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G J Caspers, D Uit de Weerd, J Wattel, W W de Jong. 1997. alpha-Crystallin sequences support a galliform/anseriform clade.. https://doi.org/10.1006/mpev.1996.0384

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