A transcriptomic analysis of superhybrid rice LYP9 and its parents

• DOI: 10.1073/pnas.0902340106
• Publication Date: 2009-04-17T02:00:09Z
• Authors: Gang Wei; 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
• Keywords: Panicle

By using a whole-genome oligonucleotide microarray, designed based on known and predicted indica rice genes, we investigated transcriptome profiles in developing leaves panicles of superhybrid LYP9 its parental cultivars 93-11 PA64s. We detected 22,266 expressed genes out 36,926 total set collectively from 7 tissues, including at seedling tillering stages, flag booting, heading, flowering, filling stage. Clustering results showed that the F1 hybrid's expression resembled those lines more than which lies between 2 lines. Out gene set, 7,078 are shared by all sampled tissues 3,926 (10.6% set) differentially (DG). As divided DG into parents (DG(PP)) hybrid (DG(HP)), comparative categories energy metabolism transport enriched DG(HP) rather DG(PP). In addition, correlated concurrence yield-related quantitative trait loci, providing potential group heterosis-related genes.