| Title | Characterization of the genome expression trends in the heading-stage panicle of six rice lineages |
| Authors | Peng, Zhi-Yu Zhang, Huiyong Liu, Tingting Dzikiewicz, Katherine M. Li, Songgang Wang, Xiangfeng Hu, Guocheng Zhu, Zhengge Wei, Xinghua Zhu, Qi-Hui Sun, Zongxiu Ge, Song Ma, Ligeng Li, Lei Deng, Xing-Wang |
| Affiliation | Univ Virginia, Dept Biol, Charlottesville, VA 22904 USA. Peking Univ, Coll Life Sci, Peking Yale Joint Ctr Plant Mol Genet & Agrobiote, Beijing 100871, Peoples R China. Peking Univ, Coll Life Sci, Natl Lab Prot Engn & Plant Genet Engn, Ctr Bioinformat, Beijing 100871, Peoples R China. Natl Inst Biol Sci, Beijing 102206, Peoples R China. Yale Univ, Dept Mol Cellular & Dev Biol, New Haven, CT 06520 USA. China Natl Rice Res Inst, State Key Lab Rice Biol, Hangzhou 310006, Zhejiang, Peoples R China. Hebei Normal Univ, Coll Life Sci, Shijiazhuang 050016, Peoples R China. Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China. |
| Keywords | Gene expression Comparative genomics Microarray Rice Domestication ORYZA-SATIVA L. CONTROLLING FLOWER DEVELOPMENT GENE-EXPRESSION STABILIZING SELECTION TRANSCRIPTION FACTORS NATURAL-SELECTION RAPID EVOLUTION CULTIVATED RICE DRAFT SEQUENCE GRAIN WIDTH |
| Issue Date | 2009 |
| Publisher | genomics |
| Citation | GENOMICS.2009,93,(2),169-178. |
| Abstract | To study how changes in gene regulation shape phenotypic variations in rice, we performed a comparative analysis of genome expression in the heading-stage panicle from six lineages of cultivated and wild rice, including Oryza sativa subsp. indica, japonica and javanica, O. nivara, O. rufipogon and O. glaberrima. While nearly three-quarters of the genes are expressed at a constant level in all six lineages, a large portion of the genome, ranging from 1767 to 4489 genes, exhibited differential expression between Asian domesticated and wild rice with repression or down-regulation of genome expression in Asian cultivated rice as the dominant trend. Importantly, we found this repression was achieved to a large extent by the differential expression of a single member of paralogous gene families. Functional analysis of the differentially expressed genes revealed that genes related to catabolism are repressed while genes related to anabolism up-regulated. Finally, we observed that distinct evolutionary forces may have acted on gene expression and the coding sequences in the examined rice lineages. Published by Elsevier Inc. |
| URI | http://hdl.handle.net/20.500.11897/162587 |
| ISSN | 0888-7543 |
| DOI | 10.1016/j.ygeno.2008.10.005 |
| Indexed | SCI(E) PubMed |
| Appears in Collections: | 生命科学学院 蛋白质与植物基因研究国家重点实验室 |
