A tangled tale of two teal: population history of the grey Anas gracilis and chestnut teal A. castanea of Australia

Grey Teal (Anas gracilis) Science Article 2

abstract

Two Australian species of teal (Anseriformes: Anatidae: Anas), the grey teal Anas gracilis and the chestnut teal A. castanea, are remarkable for the zero or near-zero divergence recorded between them in earlier surveys of mitochondrial DNA (mtDNA) diversity. We confirmed this result through wider geographical and population sampling as well as nucleotide sampling in the more rapidly evolving mtDNA control region.

Leo Joseph, Gregory J. Adcock et al., J. Avian Biol. 40: 430-439, 2009

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