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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Gene expression analyses in maize inbreds and hybrids with varying levels of heterosis | BioMed Central BMC Plant Biology Research article Gene expression analyses in maize inbreds and hybrids with varying levels of heterosis Robert M Stupar1 3 Jack M Gardiner2 Aaron G Oldre1 William J Haun1 Vicki L Chandler2 and Nathan M Springer 1 Address 1Center for Plant and Microbial Genomics Department of Plant Biology University of Minnesota Saint Paul MN 55108 USA 2Department of Plant Science and BIO5 Institute University of Arizona Tucson AZ 85721 USA and 3Department of Agronomy and Plant Genetics University of Minnesota Saint Paul MN 55108 USA Email Robert M Stupar - stup0004@umn.edu Jack M Gardiner - gardiner@ag.arizona.edu Aaron G Oldre - aaronoldre@gmail.com William J Haun - haunx003@umn.edu Vicki L Chandler - chandler@ag.arizona.edu Nathan M Springer - springer@umn.edu Corresponding author Open Access Published 10 April 2008 Received 3 January 2008 BMC Plant Biology 2008 8 33 doi 10.1186 1471-2229-8-33 Accepted I0 April 2008 This article is available from http www.biomedcentral.cOm 1471-2229 8 33 2008 Stupar et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http creativecommons.Org licenses by 2.0 which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract__ Background Heterosis is the superior performance of F1 hybrid progeny relative to the parental phenotypes. Maize exhibits heterosis for a wide range of traits however the magnitude of heterosis is highly variable depending on the choice of parents and the trait s measured. We have used expression profiling to determine whether the level or types of non-additive gene expression vary in maize hybrids with different levels of genetic diversity or heterosis. Results We observed that the distributions of better parent heterosis among a series of 25 maize hybrids .
