Research Papers

Differential Regulatory Mechanism of CBF Regulon Between Nipponbare (japonica)  and 9311(indica) During Cold Acclimation

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  • Rice Research Institute of Hunan, Changsha 410125, China;

Received date: 2012-02-26

  Revised date: 2012-04-12

  Online published: 2012-09-10

Abstract

Nine CBF/DREB1 homology genes in rice were obtained by BLAST search in the NCBI database, which shares conserved amino acid sequences with DREB1 protein in Arabidopsis.  Three CBF  genes organized in tandem, named OsCBF1, OsCBF2, OsCBF3, showed a transient induction in the process of cold acclimation, but much stronger in 9311 compared with that in Nipponbare.  The candidate downstream genes OsLIP5 and OsLIP9  were induced in 9311 but not in Nipponbare.  However, the expression of OsP5CS was induced in both varieties. The differential expression of CBF regulon might be caused by polymorphisms within promoter sequences between these two rice varieties.

Cite this article

PAN Xiaowu, LI Yongchao, LI Xiaoxiang*, LIU Wenqiang, MIN Jun, LU Tingting, SHENG Xinnian,TAN Jiang . Differential Regulatory Mechanism of CBF Regulon Between Nipponbare (japonica)  and 9311(indica) During Cold Acclimation[J]. Chinese Journal OF Rice Science, 2012 , 26(5) : 521 -528 . DOI: 10.3969/j.issn.10017216.2012.05.002

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