Genetic Variation among Subspecies of Least Tern (Sterna antillarum): Implications for Conservation

DNA sequence variation from two nuclear introns and part of the mitochondrial cytochrome-b gene were used to evaluate population structure among three subspecies of Least Tern that nest in the United States (California [Sterna antillarum browni], Interior [S. a. athalassos], Eastern [S. a. antillaru...

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Bibliographic Details
Published in:Waterbirds (De Leon Springs, Fla.) Fla.), 2006-06, Vol.29 (2), p.176-184
Main Authors: Whittier, Joanna B, Leslie, David M, Van Den Bussche, Ronald A
Format: Article
Language:English
Subjects:
Alleles
Animal genetics
Breeding
DNA
Evolutionary genetics
Gene flow
Genetic variation
Haplotypes
Introns
Least Tern
mitochondria
Mitochondrial DNA
nuclear introns
population structure
Sterna albifrons
Sterna antillarum
Sterna antillarum browni
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Summary:DNA sequence variation from two nuclear introns and part of the mitochondrial cytochrome-b gene were used to evaluate population structure among three subspecies of Least Tern that nest in the United States (California [Sterna antillarum browni], Interior [S. a. athalassos], Eastern [S. a. antillarum]). Sequence variation was highest for nuclear intron XI (Gadp) within the glyceraldehyde-3-phosphate dehydrogenase gene. The second nuclear intron was fixed for the same allele in all subspecies. Fixation indices, FST and MST, for Gadp indicated genetic divergence between California and Interior subspecies. Estimates of nuclear gene flow were
ISSN:1524-4695
1938-5390
DOI:10.1675/1524-4695(2006)29[176:GVASOL]2.0.CO;2