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Using Chloroplast trnF Pseudogenes for Phylogeography in Arabidopsis Lyrata
Division of Ecology and Evolutionary Biology, University of Glasgow, Glasgow, G12 8QQ, UK
Department of Botany, The Natural History Museum, Cromwell road, London, SW7 5BD, UK
* Author to whom correspondence should be addressed.
Received: 3 March 2010; in revised form: 31 March 2010 / Accepted: 13 April 2010 / Published: 22 April 2010
Abstract: The chloroplast trnL-F region has been extensively utilized for evolutionary analysis in plants. In the Brassicaceae this fragment contains 1–12 tandemly repeated trnF pseudogene copies in addition to the functional trnF gene. Here we assessed the potential of these highly variable, but complexly evolving duplications, to resolve the population history of the model plant Arabidopsis lyrata. While the region 5’ of the duplications had negligible sequence diversity, extensive variation in pseudogene copy number and nucleotide composition revealed otherwise cryptic population structure in eastern North America. Thus structural changes can be phylogeographically informative when pseudogene evolutionary relationships can be resolved.
Keywords: Arabidopsis lyrata; pseudogene; chloroplast DNA; Great Lakes; phylogeography
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Tedder, A.; Hoebe, P.N.; Ansell, S.W.; Mable, B.K. Using Chloroplast trnF Pseudogenes for Phylogeography in Arabidopsis Lyrata. Diversity 2010, 2, 653-678.
Tedder A, Hoebe PN, Ansell SW, Mable BK. Using Chloroplast trnF Pseudogenes for Phylogeography in Arabidopsis Lyrata. Diversity. 2010; 2(4):653-678.
Tedder, Andrew; Hoebe, Peter N.; Ansell, Stephen W.; Mable, Barbara K. 2010. "Using Chloroplast trnF Pseudogenes for Phylogeography in Arabidopsis Lyrata." Diversity 2, no. 4: 653-678.