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A genomic perspective of the pink-headed duck Rhodonessa caryophyllacea suggests a long history of low effective population size
Swedish Museum Nat Hist, Dept Bioinformat & Genet, POB 50007, SE-10405 Stockholm, Sweden..
Swedish Museum Nat Hist, Dept Bioinformat & Genet, POB 50007, SE-10405 Stockholm, Sweden.;Chinese Acad Sci, Inst Zool, Key Lab Zool Systemat & Evolut, Beijing 100101, Peoples R China..
Swedish Museum Nat Hist, Dept Bioinformat & Genet, POB 50007, SE-10405 Stockholm, Sweden..
Swedish Museum Nat Hist, Dept Zool, POB 50007, SE-10405 Stockholm, Sweden..
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2017 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, 16853Article in journal (Refereed) Published
Abstract [en]

The first molecular phylogenetic hypothesis for the possibly extinct pink-headed duck Rhodonessa caryophyllacea unambiguously shows that it belongs to the pochard radiation that also includes the genera Aythya and Netta. It is the sister to all modern-day pochards and belongs to a lineage that branched off from the others more than 2.8 million years ago. Rhodonessa caryophyllacea is believed to never have been common in modern time and we show this has probably been the situation for as long as 100,000 years. Our results suggest that their effective population size varied between 15,000 and 25,000 individuals during the last 150,000 years of the Pleistocene. The reasons behind this are largely unknown as very little is known about the life-history and biology of this species. Presumably it is due to factors related to feeding or to breeding, but we may never know this for sure.

Place, publisher, year, edition, pages
NATURE PUBLISHING GROUP , 2017. Vol. 7, 16853
National Category
Zoology
Research subject
Ecosystems and species history
Identifiers
URN: urn:nbn:se:nrm:diva-2716DOI: 10.1038/s41598-017-16975-1ISI: 000417025400034PubMedID: 29203781OAI: oai:DiVA.org:nrm-2716DiVA: diva2:1170133
Available from: 2018-01-02 Created: 2018-01-02 Last updated: 2018-01-02

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