Characterization and expression analysis of the SNF2 family genes in response to phytohormones and abiotic stresses in rice

Characterization and expression analysis of the SNF2 family genes in response to phytohormones and abiotic stresses in rice
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水稻 SNF2 家族基因响应植物激素和非生物胁迫的特征和表达分析

DOI:
10.1007/s10535-011-0160-1
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发表时间:
2011-10
期刊:
影响因子:
1.5
通讯作者:
X.-W. LU
X.-W. LU
中科院分区:
生物学4区
文献类型:
--
作者:
C. WANG;M. WANG;W. LIU;X.-Y. LI;P.-P. NIE;Q.-Y. ZHANG;Y.-G. LIU;J. YAO;X.-W. LU

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SNF 2 ATP酶是染色质重塑复合物的主要催化亚基,其在植物中的功能尚未完全了解。本研究共鉴定了39个水稻SNF 2基因。通过同源性分析,分析了其中8个基因在植物激素和非生物胁迫下的表达谱。结果表明,SNF 2基因的表达受到生长素、赤霉素、细胞分裂素、脱落酸、乙烯以及高温、低温、黑暗、干旱和盐等非生物胁迫的影响。这表明,与拟南芥SNF 2一样,水稻SNF 2蛋白可能在植物激素信号通路中起作用和/或与非生物胁迫抗性相关,但与拟南芥同源蛋白的作用方式不同。水稻中的SNF 2蛋白可能参与了植物激素与非生物胁迫之间的信号传递。
The function of SNF2 ATPases, the major catalytic subunits of chromatin remodeling complexes, in plants is not sufficiently understood. Here we identified 39 putative SNF2 genes of rice (Oryza sativa L.) by homology analyses and analyzed the expression profiles of eight of them in response to phytohormones and abiotic stresses. Our results indicated that expression of the SNF2 genes was affected by auxin, gibberellin, cytokinin, abscisic acid, ethylene, and some abiotic stresses such as heat, chilling, darkness, drought and salinity. It suggests that, like Arabidopsis SNF2s, rice SNF2 proteins may function in phytohormone signaling pathways and/or be associated with the resistance to abiotic stresses, but in distinct manners from their Arabidopsis orthologs. Some SNF2 proteins in rice may be involved in cross-talk of the signaling pathways between phytohormones and abiotic stresses.
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