The future of rice genomics: Sequencing the collective Oryza genome

Jose Luis Goicoechea, Jetty Siva S. Ammiraju, Pradeep Reddy Marri, Mingsheng Chen, Scott Jackson, Yeisoo Yu, Steve Rounsley, Rod A. Wing

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


The main objectives of the "Oryza Map Alignment Project" (OMAP) are to characterize the rice genome from a comparative standpoint by establishing a genuswide and genome-scale comparative framework from representative species. Here, we report our progress in the analyses of these datasets and emerging "comparative phylogenomics" insights into Oryza evolution at two different resolutions-chromosomal and sequence levels. We demonstrate the abundance and impact of structural variations (SV) on genome diversity using African Oryza as a model. The molecular basis of SV was inferred using three genus-wide vertical sequence datasets. Combined, these data demonstrate that a single reference genome sequence for the genus Oryza is insufficient to comprehensively capture the genomic and allelic diversity present within the genus. Towards this end, we present a strategy to generate high-quality and cost-effective de novo reference sequences of collective Oryza. The application and broader scientific impact of the OMAP resources under an international cooperative effort (I-OMAP) are discussed.

Original languageEnglish (US)
Pages (from-to)89-97
Number of pages9
Issue number2-3
StatePublished - Sep 2010


  • Comparative genomics
  • OMAP
  • Oryza
  • Rice

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Soil Science
  • Plant Science


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