International Consortium of Rice Mutagenesis: resources and beyond
- PDF / 441,661 Bytes
- 12 Pages / 595.276 x 793.701 pts Page_size
- 21 Downloads / 150 Views
REVIEW
Open Access
International Consortium of Rice Mutagenesis: resources and beyond Fu-Jin Wei1, Gaëtan Droc2, Emmanuel Guiderdoni2* and Yue-ie C Hsing1*
Abstract Rice is one of the most important crops in the world. The rice community needs to cooperate and share efforts and resources so that we can understand the functions of rice genes, especially those with a role in important agronomical traits, for application in agricultural production. Mutation is a major source of genetic variation that can be used for studying gene function. We will present here the status of mutant collections affected in a random manner by physical/chemical and insertion mutageneses. As of early September 2013, a total of 447, 919 flanking sequence tags from rice mutant libraries with T-DNA, Ac/Ds, En/Spm, Tos17, nDART/aDART insertions have been collected and publicly available. From these, 336,262 sequences are precisely positioned on the japonica rice chromosomes, and 67.5% are in gene interval. We discuss the genome coverage and preference of the insertion, issues limiting the exchange and use of the current collections, as well as new and improved resources. We propose a call to renew all mutant populations as soon as possible. We also suggest that a common web portal should be established for ordering seeds. Keywords: Functional genomics; Mutants; Rice
Introduction Rice (Oryza sativa) is one of the most important crops in the world. Rice, wheat, and maize together account for 60% of the world’s food production, and rice is the principal food of nearly 50% of the world’s population. These cereal crops share a large degree of synteny, so rice is an excellent model cereal crop for genomics research (Gale and Devos 1998). In addition, because of its small genome size, high transformation efficiency and huge genetic resources, rice was the first crop plant chosen for complete genome sequencing. The world’s population will be greater than 9 billion in less than 40 years. How can farmers grow enough food to feed such a large population in a more sustainable and environmentally friendly way? This “9 billion-people” question is one of the world’s most pressing issues and needs to be solved soon so that we can supply farmers with the seeds to feed future generations. Recently Qifa Zhang and colleagues proposed “Rice 2020” with a goal to assign a * Correspondence: [email protected]; [email protected] 2 CIRAD, Centre de coopération Internationale en Recherche Agronomique pour le Développement, Cirad - av. Agropolis -TA A-108/03, 34398 Montpellier Cedex 5, France 1 Institute of Plant and Microbial Biology, Academia Sinica, Hsing: Rm312, IPMB, Academia Sinica, Nankang District, Taipei 11529 Taiwan
biological function to each identified gene by 2020 (Zhang et al. 2008; Zhang and Wing 2013). Rod Wing then proposed the “9-billion project” to solve the 9-billion people problem at the 10th International Symposium of Rice Functional Genomics meeting held in Chiang Mai, Thailand in 2012. To fulfill this important responsibili
Data Loading...
