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The genome sequence of African rice (Oryza glaberrima) and evidence for independent domestication - 2014 - News
2014 : The genome sequence of African rice (Oryza glaberrima) and evidence for independent domestication
Posted by webmaster on 2014/8/12 15:40:00 ( 934 reads )

Muhua Wang, Yeisoo Yu, Georg Haberer, Pradeep Reddy Marri, Chuanzhu Fan, Jose Luis Goicoechea, Andrea Zuccolo, Xiang Song, Dave Kudrna, Jetty S S Ammiraju, Rosa Maria Cossu, Carlos Maldonado, Jinfeng Chen, Seunghee Lee, Nick Sisneros, Kristi de Baynast, Wolfgang Golser, Marina Wissotski, Woojin Kim, Paul Sanchez, Marie-Noelle Ndjiondjop, Kayode Sanni, Manyuan Long, Judith Carney, Olivier Panaud, Thomas Wicker, Carlos A Machado, Mingsheng Chen, Klaus F X Mayer, Steve Rounsley & Rod A Wing

Nature Genetics
(2014)
doi:10.1038/ng.3044

Received
19 January 2014
Accepted
30 June 2014
Published online
27 July 2014

The cultivation of rice in Africa dates back more than 3,000 years. Interestingly, African rice is not of the same origin as Asian rice (Oryza sativa L.) but rather is an entirely different species (i.e., Oryza glaberrima Steud.). Here we present a high-quality assembly and annotation of the O. glaberrima genome and detailed analyses of its evolutionary history of domestication and selection. Population genomics analyses of 20 O. glaberrima and 94 Oryza barthii accessions support the hypothesis that O. glaberrima was domesticated in a single region along the Niger river as opposed to noncentric domestication events across Africa. We detected evidence for artificial selection at a genome-wide scale, as well as with a set of O. glaberrima genes orthologous to O. sativa genes that are known to be associated with domestication, thus indicating convergent yet independent selection of a common set of genes during two geographically and culturally distinct domestication processes.

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A portion of AGI's material is based upon work supported by the National Science Foundation under Grant Number 102620.