Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Minireview cung cấp cho các bạn kiến thức về ngành y đề tài: Comparative genomic analysis of C4 photosynthetic pathway evolution in grasses. | Open Access Researc h Comparative genomic analysis of C4 photosynthetic pathway evolution in grasses Xiyin Wang Udo Gowik Haibao Tang John E Bowers Peter Westhoff and Andrew H Paterson Addresses Plant Genome Mapping Laboratory University of Georgia Athens GA 30602 USA. College of Sciences Hebei Polytechnic University Tangshan Hebei 063000 China. Institut fur Entwicklungs- und Molekularbiologie der Pflanzen Heinrich-Heine-Universitat 1 Universitatsstrasse D-40225 Dusseldorf Germany. Department of Plant Biology University of Georgia Athens GA 30602 USA. Correspondence Andrew H Paterson. Email paterson@ Published 23 June 2009 Genome Biology 2009 10 R68 doi gb-2009- 10-6-r68 The electronic version of this article is the complete one and can be found online at http 2009 10 6 R68 Received 18 March 2009 Revised 27 May 2009 Accepted 23 June 2009 2009 Wang 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 Sorghum is the first C4 plant and the second grass with a full genome sequence available. This makes it possible to perform a whole-genome-level exploration of C4 pathway evolution by comparing key photosynthetic enzyme genes in sorghum maize C4 and rice C3 and to investigate a long-standing hypothesis that a reservoir of duplicated genes is a prerequisite for the evolution of C4 photosynthesis from a C3 progenitor. Results We show that both whole-genome and individual gene duplication have contributed to the evolution of C4 photosynthesis. The C4 gene isoforms show differential duplicability with some C4 genes being recruited from whole genome duplication duplicates by multiple modes of functional innovation. The sorghum and maize carbonic anhydrase genes display a novel .
