TY - JOUR
T1 - Evolutionary analysis of the SUB1 locus across the Oryza genomes
AU - dos Santos, Railson Schreinert
AU - Farias, Daniel da Rosa
AU - Pegoraro, Camila
AU - Rombaldi, Cesar Valmor
AU - Fukao, Takeshi
AU - Wing, Rod A.
AU - de Oliveira, Antonio Costa
N1 - Funding Information:
We would like to thank the Virginia Agricultural Experimental Station and the Hatch Program of the National Institute of Food and Agriculture, U.S. Department of Agriculture. No conflict of interest declared.
Funding Information:
This work was supported by the Brazilian Ministry of Science and Technology, National Counsel of Technological and Scientific Development (CNPq) (477083/2013-7); Coordination for the Improvement of Higher Education Personnel (CAPES) (2880/2011) and RS State Foundation for Research Support (FAPERGS) (2232-2551/14-6).
Publisher Copyright:
© 2017, The Author(s).
PY - 2017/12/1
Y1 - 2017/12/1
N2 - 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.
AB - 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.
KW - IOMAP
KW - Leersia perrieri
KW - Oryza
KW - SUB1 genes
KW - Submergence tolerance
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U2 - 10.1186/s12284-016-0140-3
DO - 10.1186/s12284-016-0140-3
M3 - Article
AN - SCOPUS:85011982951
SN - 1939-8425
VL - 10
JO - Rice
JF - Rice
IS - 1
M1 - 4
ER -