The oryza map alignment project (OMAP): A new resource for comparative genome studies within oryza

Rod A Wing, Hyeran Kim, Jose Luis Goicoechea, Yeisoo Yu, David A Kudrna, Andrea Zuccolo, Jetty Siva S Ammiraju, Meizhong Luo, Will Nelson, Jianxin Ma, Phillip Sanmiguel, Bonnie L Hurwitz, Doreen Ware, Darshan Brar, David Mackill, Cari Soderlund, Lincoln Stein, Scott Jackson

Research output: Chapter in Book/Report/Conference proceedingChapter

8 Citations (Scopus)

Abstract

Rice (Oryza sativa L.) is the most important human food crop in the world. The agronomic importance of rice, its shared evolutionary history with major cereal crops, and small genome size have led to the generation of a high-quality finished genome sequence by the International Rice Genome Sequencing Project (2005). The highly accurate and public IRGSP sequence now serves as a unifying research platform for a complete functional characterization of the rice genome. Such an analysis will investigate the rice transcriptome, proteome, and metabolome, with the goal of understanding the biological function of all 35,000 to 40,000 rice genes and applying that information to improve rice production and quality. This comprehensive analysis will utilize a variety of techniques and resources from expression and genome tiling arrays to collections of tagged mutant populations developed in elite cultivars grown around the world. Comparative genomics between the cereal genomes and within the genus Oryza will also play a critical role in our understanding of the rice genome (Ahn et al. 1993; Ahn and Tanksley 1993; Bennetzen and Ma 2003; Han and Xue 2003; Huang and Kochert 1994; Jena et al. 1994; Ma and Bennetzen 2004). By comparing genome organization, genes, and intergenic regions between cereal species, one can identify regions of the genome that are highly conserved or rapidly evolving. Such regions are expected to yield key insights into genome evolution, speciation, and domestication. The study of conserved noncoding sequences (CNSs) between cereal genomes will also increase our ability to understand and isolate regulatory elements required for precise developmental and temporal gene expression (Kaplinsky et al. 2002). The genus Oryza is composed of two cultivated (O. sativa and O. glaberrima) and 21 wild species (Khush 1997; Vaughan et al. 2003). Based on recent phylogenetic data, Ge et al. (1999) proposed that Porteresia coarctata should be included in the genus as the 24th Oryza species. Cultivated rice is classified as an AA genome diploid and has 6 wild AA genome relatives. The remaining 15 wild species are classified into 9 other genome types that include both diploid and tetraploid species. Figure 15.1 shows a proposed phylogenetic tree of the genus Oryza as described by Ge et al. (1999) based on the analysis of two nuclear genes and one chloroplast gene. The wild rice species offer a largely untapped resource of agriculturally important genes that have the potential to solve many of the problems in rice production that we face today, such as yield, drought, and salt tolerance as well as disease and insect resistance. To better understand the wild species of rice and take advantage of the IRGSP genome sequence, we have embarked on an ambitious comparative genomics program entitled the Oryza Map Alignment Project (OMAP). The long-term objective of OMAP is to create a genome-level closed experimental system for the genus Oryza that can be used as a research platform to study evolution, development, genome organization, polyploidy, domestication, gene regulatory networks, and crop improvement. The specific objectives of OMAP are to (1) construct deep-coverage large-insert bacterial artificial chromosome (BAC) libraries from 11 wild and 1 cultivated African Oryza species (O. glaberrima); (2) fingerprint and end-sequence clones from all 12 BAC libraries; (3) construct physical maps for all 12 Oryza species and align them to the IRGSP genome sequence; and (4) perform a detailed reconstruction of rice chromosomes 1, 3, and 10 across all 12 Oryza species (Wing et al. 2005). This chapter presents our current progress for OMAP and some early glimpses into the results we are finding.

Original languageEnglish (US)
Title of host publicationRice Functional Genomics: Challenges, Progress and Prospects
PublisherSpringer New York
Pages395-409
Number of pages15
ISBN (Print)9780387489148, 0387489037, 9780387489032
DOIs
StatePublished - 2007

Fingerprint

Oryza
Genes
Genome
genome
rice
Oryza glaberrima
bacterial artificial chromosomes
Chromosomes
Crops
domestication
genes
Bacterial Artificial Chromosomes
Oryza sativa
diploidy
Genomics
Diploidy
genomics
metabolome
wild rice
physical chromosome mapping

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Wing, R. A., Kim, H., Goicoechea, J. L., Yu, Y., Kudrna, D. A., Zuccolo, A., ... Jackson, S. (2007). The oryza map alignment project (OMAP): A new resource for comparative genome studies within oryza. In Rice Functional Genomics: Challenges, Progress and Prospects (pp. 395-409). Springer New York. https://doi.org/10.1007/0-387-48914-2_15

The oryza map alignment project (OMAP) : A new resource for comparative genome studies within oryza. / Wing, Rod A; Kim, Hyeran; Goicoechea, Jose Luis; Yu, Yeisoo; Kudrna, David A; Zuccolo, Andrea; Ammiraju, Jetty Siva S; Luo, Meizhong; Nelson, Will; Ma, Jianxin; Sanmiguel, Phillip; Hurwitz, Bonnie L; Ware, Doreen; Brar, Darshan; Mackill, David; Soderlund, Cari; Stein, Lincoln; Jackson, Scott.

Rice Functional Genomics: Challenges, Progress and Prospects. Springer New York, 2007. p. 395-409.

Research output: Chapter in Book/Report/Conference proceedingChapter

Wing, RA, Kim, H, Goicoechea, JL, Yu, Y, Kudrna, DA, Zuccolo, A, Ammiraju, JSS, Luo, M, Nelson, W, Ma, J, Sanmiguel, P, Hurwitz, BL, Ware, D, Brar, D, Mackill, D, Soderlund, C, Stein, L & Jackson, S 2007, The oryza map alignment project (OMAP): A new resource for comparative genome studies within oryza. in Rice Functional Genomics: Challenges, Progress and Prospects. Springer New York, pp. 395-409. https://doi.org/10.1007/0-387-48914-2_15
Wing RA, Kim H, Goicoechea JL, Yu Y, Kudrna DA, Zuccolo A et al. The oryza map alignment project (OMAP): A new resource for comparative genome studies within oryza. In Rice Functional Genomics: Challenges, Progress and Prospects. Springer New York. 2007. p. 395-409 https://doi.org/10.1007/0-387-48914-2_15
Wing, Rod A ; Kim, Hyeran ; Goicoechea, Jose Luis ; Yu, Yeisoo ; Kudrna, David A ; Zuccolo, Andrea ; Ammiraju, Jetty Siva S ; Luo, Meizhong ; Nelson, Will ; Ma, Jianxin ; Sanmiguel, Phillip ; Hurwitz, Bonnie L ; Ware, Doreen ; Brar, Darshan ; Mackill, David ; Soderlund, Cari ; Stein, Lincoln ; Jackson, Scott. / The oryza map alignment project (OMAP) : A new resource for comparative genome studies within oryza. Rice Functional Genomics: Challenges, Progress and Prospects. Springer New York, 2007. pp. 395-409
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