Waves of genomic hitchhikers shed light on the evolution of gamebirds (Aves: Galliformes) |
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| Authors: | Jan Ole Kriegs Andreas Matzke Gennady Churakov Andrej Kuritzin Gerald Mayr Jürgen Brosius Jürgen Schmitz |
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| Affiliation: | 1.Institute of Experimental Pathology (ZMBE) University of Münster,Münster,Germany;2.Department of Physics and Mathematics,Saint Petersburg State Institute of Technology,Petersburg,Russia;3.Forschungsinstitut Senckenberg,Division of Ornithology,Frankfurt am Main,Germany |
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| Abstract: | Background The phylogenetic tree of Galliformes (gamebirds, including megapodes, currassows, guinea fowl, New and Old World quails, chicken, pheasants, grouse, and turkeys) has been considerably remodeled over the last decades as new data and analytical methods became available. Analyzing presence/absence patterns of retroposed elements avoids the problems of homoplastic characters inherent in other methodologies. In gamebirds, chicken repeats 1 (CR1) are the most prevalent retroposed elements, but little is known about the activity of their various subtypes over time. Ascertaining the fixation patterns of CR1 elements would help unravel the phylogeny of gamebirds and other poorly resolved avian clades. |
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