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Genome-wide identification, characterization, and expression analysis of SnRK2 family in Hevea brasiliensis

文献类型: 外文期刊

作者: Guo, Dong 1 ; Li, Hui-Liang 1 ; Zhu, Jia-Hong 1 ; Wang, Ying 1 ; An, Feng 2 ; Xie, Gui-Shui 2 ; Peng, Shi-Qing 1 ;

作者机构: 1.Chinese Acad Trop Agr Sci, Key Lab Trop Crop Biotechnol, Minist Agr, Inst Trop Biosci & Biotechnol, Haikou 571101, Hainan, Peoples R China

2.Chinese Acad Trop Agr Sci, Rubber Res Inst, Danzhou Invest & Expt Stn Trop Crops, Minist Agr, Danzhou 571737, Hainan, Peoples R China

关键词: Hevea brasiliensis;SnRK2 family;Abscisic acid

期刊名称:TREE GENETICS & GENOMES ( 影响因子:2.297; 五年影响因子:2.547 )

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收录情况: SCI

摘要: The sucrose non-fermenting 1-related protein kinase 2 (SnRK2) gene family belongs to a group of plant-specific serine/threonine kinase family involved in abscisic acid (ABA) signaling and biotic and abiotic stress response. Although genome-wide analyses of the SnRK2 gene family have been conducted in some species, little is known about the SnRK2 gene family in rubber tree (Hevea brasiliensis). In this study, we identified 10 SnRK2s designated as HbSnRK2.1 to HbSnRK2.10 in the rubber tree genome. The subsequently constructed phylogenetic tree demonstrated that HbSnRK2s have three subfamilies that correlate well with those of Arabidopsis sp. and rice subfamilies. All SnRK2 genes contained nine exons and eight introns. Although the C-terminus was divergent, eight conserved motifs were found. Motifs 1-6 were common to allHbSnRK2s. Expression analysis results showed that 7 of the 10 HbSnRK2s were highly expressed in latex. HbSnRK2.7 was predominantly expressed and simultaneously regulated by abscisic acid, jasmonic acid, and ethylene treatment in laticifers. HbSnRK identification and characterization provided further understanding on the role of ABA signal in the rubber tree.

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