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Molecular Assessment of the Taxonomic Status of Cox's Sandpiper

Les Christidis, Kizanne Davies, Michael Westerman, Peter D. Christian and Richard Schodde
The Condor
Vol. 98, No. 3 (Aug., 1996), pp. 459-463
DOI: 10.2307/1369559
Stable URL: http://www.jstor.org/stable/1369559
Page Count: 5
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Abstract

To determine whether Calidris paramelanotos is a distinct species or a hybrid, DNA sequences from the mitochondrial cytochrome-b gene were obtained from it, as well as from C. ferruginea and C. melanotos. The sequences of the first two taxa were identical whereas that of C. melanotos differed by 9%. It is argued that C. paramelanotos is a hybrid taxon with C. ferruginea constituting the maternal parent. This conclusion, combined with comparisons of protein allozyme variation effectively rule out all but one of the crosses postulated for its hybrid origin--C. ferruginea × C. melanotos.

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