Analysis of genome sequences from the maternal and paternal parents of an elite rice hybrid
2007
Yu, J. | Wong, G.K.S. | Liu, S.Q. | Wang, J.A. | Yang, H.M.
We have initiated a genome project in China, the Superhybrid Rice Genome Project (SRGP), to understand the molecular basis of hybrid vigor. The early phase of the project is to sequence 93-11 and PA64S, the paternal and maternal parents of the hybrid rice strain LYP9. Preliminary analysis on genomic sequences from the parental cultivars indicates that hybrid vigor may be more complex at the molecular level than previously proposed, which is shaped, through complex and meticulous breeding practices, by intricate genetic and functional complementation processes attributable largely to variations in protein-coding sequences, regulatory elements, epigenetics, and posttranslational modifications of gene products. We are in a process of collaborating with other research groups in rice biology to acquire, in a broad spectrum, transcriptomic and proteomic data of the triad from different tissues, at multiple developmental stages and with different methods. The study should yield useful candidate genes and genetic markers for further investigations in molecular and functional details. Based on the information acquired, the SRGP initiated at the Beijing Genomics Institute will continue to map domestication-related genes and loci, based on the rich diversity of resources available in rice.
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Эту запись предоставил International Rice Research Institute