Mapping of the first complete genome framework map of common wild rice

Latest discovery and innovation Gao Zhizhi, a researcher at Kunming Institute of Botany, Chinese Academy of Sciences, and his team announced that they had recently completed the sequencing, splicing and assembly of high coverage of common wild rice genome by using a new generation of high-throughput sequencing technology and bioinformatics analysis based on high-performance supercomputing, and obtained the framework map of whole genome de novo sequencing of common wild rice The genome map has reached the international leading level The first genome map standard This is the first complete genome sequencing project of wild rice independently completed by Chinese scientists, and also the first complete genome framework map of high heterozygosity wild rice in the world China is one of the origins of cultivated rice in Asia Rice is the largest food crop in China, feeding more than 80% of China's population Common wild rice is the recognized ancestor of cultivated rice in Asia It is listed as the second-class national protected plant and contains many outstanding genes that have not been recognized and utilized Because of its close relationship with cultivated rice, most of the breakthroughs in rice conventional breeding so far are related to the discovery and utilization of the excellent genes of this wild rice For example, Yuan Longping et al Made use of the cytoplasmic male sterility gene in a wild male sterile rice (wild abortion) in Hainan Island to develop a famous hybrid rice at home and abroad Previously, the fine map of the genome of Japonica Rice (Nippon clear) has been obtained, and the framework map of the genome of Indica Rice (9311) has also been completed by Chinese scientists Now the acquisition of the whole genome framework map and the further drawing of the fine map of common wild rice not only greatly promote the large-scale analysis and identification of the important functional genes of rice, but also provide an unprecedented opportunity to further explore and utilize the rich and excellent gene resources of common wild rice The completion of this project mainly relies on the advanced genomics and bioinformatics platform of Southwest China wild life germplasm resource bank, which has passed the national acceptance successfully at the end of 2009 The results of sequencing have covered 92% of the whole genome of wild rice, and the gene coverage is more than 90% At present, the project team is stepping up to draw the genome fine map of common wild rice.