@ARTICLE{TreeBASE2Ref20727,
author = {Nicholas Geoffrey Crawford and Brant C Faircloth and John E McCormack and Robb T. Brumfield and Kevin Winker and Travis C Glenn},
title = {More than 1000 ultraconserved elements provide evidence that turtles are the sister group of archosaurs.},
year = {2012},
keywords = {turtles; ultraconserved elements; phylogenomics; evolution; archosaurs},
doi = {10.1098/rsbl.2012.0331},
url = {http://dx.doi.org/10.5061/dryad.75nv22qj},
pmid = {22593086},
journal = {Biology Letters},
volume = {},
number = {},
pages = {1--4},
abstract = {We present the first genomic-scale analysis addressing the phylogenetic position of turtles, using over 1000 loci from representatives of all major reptile lineages including tuatara. Previously, studies of morphological traits posi- tioned turtles either at the base of the reptile tree or with lizards, snakes and tuatara (lepido- saurs), whereas molecular analyses typically allied turtles with crocodiles and birds (archo- saurs). A recent analysis of shared microRNA families found that turtles are more closely related to lepidosaurs. To test this hypothesis with data from many single-copy nuclear loci dis- persed throughout the genome, we used sequence capture, high-throughput sequencing and pub- lished genomes to obtain sequences from 1145 ultraconserved elements (UCEs) and their vari- able flanking DNA. The resulting phylogeny provides overwhelming support for the hypothesis that turtles evolved from a common ancestor of birds and crocodilians, rejecting the hypothesized relationship between turtles and lepidosaurs.}
}
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Citation title: "More than 1000 ultraconserved elements provide evidence that turtles are the sister group of archosaurs.".
