Evolutionary analysis of the SUB1 locus across the Oryza genomes

Railson Schreinert dos Santos, Daniel da Rosa Farias, Camila Pegoraro, Cesar Valmor Rombaldi, Takeshi Fukao, Rod A Wing, Antonio Costa de Oliveira

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Background: Tolerance to complete submergence is recognized in a limited number of Asian rice (Oryza sativa L.) varieties, most of which contain submergence-inducible SUB1A on the polygenic SUBMERGENCE-1 (SUB1) locus. It has been shown that the SUB1 locus encodes two Ethylene-Responsive Factor (ERF) genes, SUB1B and SUB1C, in all O. sativa varieties. These genes were also found in O rufipogon and O nivara, wild relatives of O. sativa. However, detailed analysis of the polygenic locus in other Oryza species has not yet been made. Findings: Chromosomal location, phylogenetic, and gene structure analyses have revealed that the SUB1 locus is conserved in the long arm of chromosome 9 in most Oryza species. We also show that the SUB1A-like gene of O. nivara is on chromosome 1 and that Leersia perrieri, a grass-tolerant to deep-flooding, presents three ERF genes in the SUB1 locus. Conclusion: We provide here a deeper insight into the evolutionary origin and variation of the SUB1 locus and raise the possibility that an association of these genes with flooding tolerance in L. perrieri may exist.

Original languageEnglish (US)
Article number4
JournalRice
Volume10
Issue number1
DOIs
StatePublished - Dec 1 2017

Keywords

  • IOMAP
  • Leersia perrieri
  • Oryza
  • SUB1 genes
  • Submergence tolerance

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Soil Science
  • Plant Science

Fingerprint Dive into the research topics of 'Evolutionary analysis of the SUB1 locus across the Oryza genomes'. Together they form a unique fingerprint.

  • Cite this

    dos Santos, R. S., Farias, D. D. R., Pegoraro, C., Rombaldi, C. V., Fukao, T., Wing, R. A., & de Oliveira, A. C. (2017). Evolutionary analysis of the SUB1 locus across the Oryza genomes. Rice, 10(1), [4]. https://doi.org/10.1186/s12284-016-0140-3