Comparative Transcriptional Profiling and Preliminary Study on Heterosis Mechanism of Super-Hybrid Rice

文献类型: 外文期刊

第一作者: Song, Gui-Sheng

作者: Song, Gui-Sheng;Zhai, Hong-Li;Peng, Yong-Gang;Zhang, Lei;Wei, Gang;Xiao, Yu-Guo;Wang, Lili;Chen, Yue-Jun;Wu, Bin;Chen, Bin;Zhang, Yu;Chen, Hua;Feng, Xiu-Jing;Gong, Wan-Kui;Liu, Yao;Yin, Zhi-Jie;Xu, Hong-Lin;Wei, Xiao-Li;Zhao, Xiao-Ling;Zhu, Zhen;Song, Gui-Sheng;Zhai, Hong-Li;Peng, Yong-Gang;Zhang, Lei;Wei, Gang;Xiao, Yu-Guo;Wang, Lili;Chen, Yue-Jun;Wu, Bin;Chen, Bin;Zhang, Yu;Chen, Hua;Feng, Xiu-Jing;Gong, Wan-Kui;Liu, Yao;Yin, Zhi-Jie;Xu, Hong-Lin;Wei, Xiao-Li;Zhao, Xiao-Ling;Lu, Cong-Ming;Zhu, Zhen;Wei, Gang;Chen, Xiao-Ying;Lu, Cong-Ming;Wang, Feng;Liu, Guo-Zhen;Ouwerkerk, Pieter B. F.;Hankemeier, Thomas;Reijmers, Theo;van der Heijden, Rob;van der Greef, Jan;Wang, Mei;van der Greef, Jan;Wang, Mei;van der Greef, Jan

作者机构:

关键词: Heterosis;super-hybrid rice;transcriptional profiling;photosynthesis;carbon fixation;regulatory network

期刊名称:MOLECULAR PLANT ( 影响因子:13.164; 五年影响因子:16.357 )

ISSN: 1674-2052

年卷期: 2010 年 3 卷 6 期

页码:

收录情况: SCI

摘要: Heterosis is a biological phenomenon whereby the offspring from two parents show improved and superior performance than either inbred parental lines. Hybrid rice is one of the most successful apotheoses in crops utilizing heterosis. Transcriptional profiling of F-1 super-hybrid rice Liangyou-2186 and its parents by serial analysis of gene expression (SAGE) revealed 1183 differentially expressed genes (DGs), among which DGs were found significantly enriched in pathways such as photosynthesis and carbon-fixation, and most of the key genes involved in the carbon-fixation pathway exhibited up-regulated expression in F-1 hybrid rice. Moreover, increased catabolic activity of corresponding enzymes and photosynthetic efficiency were also detected, which combined to indicate that carbon fixation is enhanced in F-1 hybrid, and might probably be associated with the yield vigor and heterosis in super-hybrid rice. By correlating DGs with yield-related quantitative trait loci (QTL), a potential relationship between differential gene expression and phenotypic changes was also found. In addition, a regulatory network involving circadian-rhythms and light signaling pathways was also found, as previously reported in Arabidopsis, which suggest that such a network might also be related with heterosis in hybrid rice. Altogether, the present study provides another view for understanding the molecular mechanism underlying heterosis in rice.

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