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Whole-genome sequencing reveals untapped genetic potential in Africa’s indigenous cereal crop sorghum

Mace, Emma S. and Tai, Shuaishuai and Gilding, Edward K. and Li, Yanhong and Prentis, Peter J. and Bian, Lianle and Campbell, Bradley C. and Hu, Wushu and Innes, David J. and Han, Xuelian and Cruickshank, Alan and Dai, Changming and Frère, Céline and Zhang, Haikuan and Hunt, Colleen H. and Wang, Xianyuan and Shatte, Tracey and Wang, Miao and Su, Zhe and Li, Jun and Lin, Xiaozhen and Godwin, Ian D. and Jordan, David R. and Wang, Jun (2013) Whole-genome sequencing reveals untapped genetic potential in Africa’s indigenous cereal crop sorghum. Nature Communications, 4 (2320).

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Article Link(s): http://dx.doi.org/10.1038/ncomms3320

Abstract

Sorghum is a food and feed cereal crop adapted to heat and drought and a staple for 500 million of the world’s poorest people. Its small diploid genome and phenotypic diversity make it an ideal C4 grass model as a complement to C3 rice. Here we present high coverage (16-45 × ) resequenced genomes of 44 sorghum lines representing the primary gene pool and spanning dimensions of geographic origin, end-use and taxonomic group. We also report the first resequenced genome of S. propinquum, identifying 8 M high-quality SNPs, 1.9 M indels and specific gene loss and gain events in S. bicolor. We observe strong racial structure and a complex domestication history involving at least two distinct domestication events. These assembled genomes enable the leveraging of existing cereal functional genomics data against the novel diversity available in sorghum, providing an unmatched resource for the genetic improvement of sorghum and other grass species.

Item Type:Article
Business groups:Crop and Food Science
Subjects:Plant culture > Field crops > Sorghum
Science > Biology > Genetics
Deposited On:16 Jul 2014 03:10
Last Modified:16 Jul 2014 03:10

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