tailieunhanh - Báo cáo y học: "Analysis of 142 genes resolves the rapid diversification of the rice genus"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Analysis of 142 genes resolves the rapid diversification of the rice genus. | Open Access Research Analysis of 142 genes resolves the rapid diversification of the rice genus Xin-Hui ZouH Fu-Min ZhangH Jian-Guo ZhangHt Li-Li Zang Liang Tang Jun Wang Tao Sang and Song Ge Addresses State Key Laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Beijing 100093 China. Beijing Genomics Institute Beijing 101300 China. Department of Plant Biology Michigan State University East Lansing MI 48824 USA. The Graduate School Chinese Academy of Sciences Beijing 100039 China. H These authors contributed equally to this work. Correspondence Song Ge. Email gesong@ Published 3 March 2008 Genome Biology 2008 9 R49 doi 186 gb-2008-9-3-r49 The electronic version of this article is the complete one and can be found online at http 2008 9 3 R49 Received 21 December 2007 Revised 18 February 2008 Accepted 3 March 2008 2008 Zou et al. licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background The completion of rice genome sequencing has made rice and its wild relatives an attractive system for biological studies. Despite great efforts phylogenetic relationships among genome types and species in the rice genus have not been fully resolved. To take full advantage of rice genome resources for biological research and rice breeding we will benefit from the availability of a robust phylogeny of the rice genus. Results Through screening rice genome sequences we sampled and sequenced 142 single-copy genes to clarify the relationships among all diploid genome types of the rice genus. The analysis identified two short internal branches around which most previous phylogenetic inconsistency emerged. These represent two episodes of rapid speciation that .