Abstract:
:The Wood Stork (Mycteria americana) is a colonial wading bird of the tropical and lower subtropical zones. We assessed genetic structure within and among five stork colonies from the Brazilian Pantanal and compared our data with those from North American populations. Samples of 234 individuals were studied using protein electrophoresis to evaluate genetic variability and interpopulation differentiation. Of 22 loci examined, 7 were polymorphic (mean heterozygosity = 0.068). The low Fst value (0.005) indicated little intraspecific variation among breeding colonies. Estimated number of migrants per generation based on private alleles (Nm = 11.3) and on Fst (48.8) suggests high gene flow Nei's genetic distance values among Pantanal colonies ranged from 0.0001 to 0.0034, demonstrating low genetic divergence among populations. Our data can be explained by supposing high gene flow levels among Pantanal colonies, and between North and South American populations, intermediated by a probable interbreeding population in Central America.
journal_name
Biochem Genetjournal_title
Biochemical geneticsauthors
Del Lama SN,Lopes IF,Del Lama MAdoi
10.1023/a:1015109321773subject
Has Abstractpub_date
2002-04-01 00:00:00pages
87-99issue
3-4eissn
0006-2928issn
1573-4927journal_volume
40pub_type
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