tailieunhanh - Báo cáo y học: " Patterns of expansion and expression divergence in the plant polygalacturonase gene family"

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: Patterns of expansion and expression divergence in the plant polygalacturonase gene family . | Research Open Access Patterns of expansion and expression divergence in the plant polygalacturonase gene family Joonyup KimH Shin-Han ShiuHt Sharon Thoma Wen-Hsiung Li and Sara E Patterson Addresses Department of Horticulture Cellular and Molecular Biology Program University of Wisconsin-Madison Madison WI 53706 USA. Department of Plant Biology Michigan State University East Lansing MI 48824 USA. Department of Zoology University of Wisconsin-Madison Madison WI 53706 USA. Department of Ecology and Evolution University of Chicago Chicago IL 60637 USA. H These authors contributed equally to this work. Correspondence Sara E Patterson. Email spatters@ Published 29 September 2006 Genome Biology 2006 7 R87 doi 186 gb-2006-7-9-r87 The electronic version of this article is the complete one and can be found online at http 2006 7 9 R87 Received 19 May 2006 Revised 26 July 2006 Accepted 29 September 2006 2006 Kim 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 Polygalacturonases PGs belong to a large gene family in plants and are believed to be responsible for various cell separation processes. PG activities have been shown to be associated with a wide range of plant developmental programs such as seed germination organ abscission pod and anther dehiscence pollen grain maturation fruit softening and decay xylem cell formation and pollen tube growth thus illustrating divergent roles for members of this gene family. A close look at phylogenetic relationships among Arabidopsis and rice PGs accompanied by analysis of expression data provides an opportunity to address key questions on the evolution and functions of duplicate genes. Results We found that both tandem and whole-genome .