NDLI: A Comparison of Hybridization between Mottled Ducks (Anas fulvigula)and Mallards (A. platyrhynchos) in Florida and South Carolina using Microsatellite DNA Analysis

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Conservation Genetics : Volume 6, Issue 2, March 2005

Conservation Genetics : Volume 6, Issue 1, January 2005

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Conservation Genetics : Volume 1

A Comparison of Hybridization between Mottled Ducks (Anas fulvigula)and Mallards (A. platyrhynchos) in Florida and South Carolina using Microsatellite DNA Analysis

Content Provider	Springer Nature Link
Author	Williams, Christen L. Brust, Richard C. Fendley, Timothy T. Tiller, Gerald R. Rhodes, Olin E.
Copyright Year	2005
Abstract	Interspecific hybridization has been implicated in population declines for some waterfowl species within the mallard complex, and hybridization with mallards (Anas platyrhynchos) is currently considered the largest threat to mottled ducks (A. fulvigula), one North American member of that complex. We assessed genetic variation among 225 mottled ducks and mallards using five microsatellite loci, and detected significant overall differences between these species within two geographic areas. We characterized hybridization in Florida, where mottled ducks are endemic and mallards are beginning to appear on the breeding grounds, and in South Carolina, where mottled ducks were introduced outside their native range. We used Bayesian genetic mixture analysis in an attempt to distinguish between these closely related species. In Florida, we detected two distinct genetic groups, and 10.9% of our samples from Florida mottled ducks were inferred to have been hybrids. In contrast only 3.4% of Florida mallards were inferred to have been hybrids, suggesting asymmetric hybridization. Populations from different geographic areas within Florida exhibited hybridization rates ranging from 0% to 24%. These data indicate a genetic component would be appropriate in actively managing interspecific hybridization in Florida mottled ducks. In contrast, South Carolina mottled ducks and mallards cannot be differentiated.
Starting Page	445
Ending Page	453
Page Count	9
File Format	PDF
ISSN	15660621
Journal	Conservation Genetics
Volume Number	6
Issue Number	3
e-ISSN	15729737
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2005-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Anas fulvigula hybridization microsatellite mottled duck waterfowl Human Genetics Evolutionary Biology Plant Sciences Animal Anatomy / Morphology / Histology
Content Type	Text
Resource Type	Article
Subject	Genetics Ecology, Evolution, Behavior and Systematics

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A Comparison of Hybridization between Mottled Ducks (Anas fulvigula)and Mallards (A. platyrhynchos) in Florida and South Carolina using Microsatellite DNA Analysis

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