| Literature DB >> 19372371 |
Gang Wei1, Yong Tao, Guozhen Liu, Chen Chen, Renyuan Luo, Hongai Xia, Qiang Gan, Haipan Zeng, Zhike Lu, Yuning Han, Xiaobing Li, Guisheng Song, Hongli Zhai, Yonggang Peng, Dayong Li, Honglin Xu, Xiaoli Wei, Mengliang Cao, Huafeng Deng, Yeyun Xin, Xiqin Fu, Longping Yuan, Jun Yu, Zhen Zhu, Lihuang Zhu.
Abstract
By using a whole-genome oligonucleotide microarray, designed based on known and predicted indica rice genes, we investigated transcriptome profiles in developing leaves and panicles of superhybrid rice LYP9 and its parental cultivars 93-11 and PA64s. We detected 22,266 expressed genes out of 36,926 total genes set collectively from 7 tissues, including leaves at seedling and tillering stages, flag leaves at booting, heading, flowering, and filling stages, and panicles at filling stage. Clustering results showed that the F1 hybrid's expression profiles resembled those of its parental lines more than that which lies between the 2 parental lines. Out of the total gene set, 7,078 genes are shared by all sampled tissues and 3,926 genes (10.6% of the total gene set) are differentially expressed genes (DG). As we divided DG into those between the parents (DG(PP)) and between the hybrid and its parents (DG(HP)), the comparative results showed that genes in the categories of energy metabolism and transport are enriched in DG(HP) rather than in DG(PP). In addition, we correlated the concurrence of DG and yield-related quantitative trait loci, providing a potential group of heterosis-related genes.Entities:
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Year: 2009 PMID： 19372371 PMCID： PMC2683082 DOI： 10.1073/pnas.0902340106
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205