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The species status of the Corsican finch Carduelis corsicana assessed by three genetic markers with different rates of evolution
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Animal Ecology.
2009 (English)In: Molecular Phylogenetics and Evolution, ISSN 1055-7903, E-ISSN 1095-9513, Vol. 52, no 1, 234-240 p.Article in journal (Refereed) Published
Abstract [en]

Citril finches Carduelis c. citrinella and Corsican finches Carduelis c. corsicana represent two closely related forms, endemic to European mountains and some Mediterranean Islands. Their taxonomic status has recently been disputed based on the results from mitochondrial genes. We show that the use of different genetic markers may lead to different results in these two putative species. Using the mitochondrial ATP8 + 6 we found a clear difference between C. c. citrinella and C. c. corsicana (3.2%) suggesting a divergence time of 1.2 MYR. In contrast, no clear difference was found using two nuclear genes. The mismatch between the different markers suggests that the separation of C. c. citrinella and C. c. corsicana is likely to be a rather recent event, involving bottlenecks, which have enhanced the divergence in the mtDNA. Our results call for caution when using mtDNA alone for assessing times of divergence and rates of evolution. We did not find any support for the view that C. c. corsicana is more related to Carduelis carduelis than C. c. citrinella as proposed by previous studies. (C) 2009 Elsevier Inc. All rights reserved.

Place, publisher, year, edition, pages
2009. Vol. 52, no 1, 234-240 p.
Keyword [en]
Speciation, Bottleneck, Phylogeny, mtDNA, Nuclear genes, Microsatellites
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-129015DOI: 10.1016/j.ympev.2009.02.014ISI: 000266692800021OAI: oai:DiVA.org:uu-129015DiVA: diva2:332458
Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2016-04-18Bibliographically approved

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Björklund, Mats
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