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Identification and characterization of the abscisic acid (ABA) receptor gene family and its expression in response to hormones in the rubber tree

文献类型： 外文期刊

作者： Guo, Dong 1 ; Zhou, Ying 2 ; Li, Hui-Liang 1 ; Zhu, Jia-Hong 1 ; Wang, Ying 1 ; Chen, Xiong-Ting 1 ; Peng, Shi-Qing 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Minist Agr, Inst Trop Bioscience & Biotechnol, Key Lab Biol & Genet Resources Trop Crops, 4 Xueyuan Rd, Haikou 571101, Peoples R China

2.China Natl Seed Grp Co Ltd, Life Sci & Technol

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2017 年 7 卷

页码：

收录情况： SCI

摘要： Abscisic acid (ABA) is an essential phytohormone involved in diverse physiological processes. Although genome-wide analyses of the ABA receptor PYR/PYL/RCAR (PYL) protein/gene family have been performed in certain plant species, little is known about the ABA receptor protein/gene family in the rubber tree (Hevea brasiliensis). In this study, we identified 14 ABA receptor PYL proteins/genes (designated HbPYL1 through HbPYL14) in the most recent rubber tree genome. A phylogenetic tree was constructed, which demonstrated that HbPYLs can be divided into three subfamilies that correlate well with the corresponding Arabidopsis subfamilies. Eight HbPYLs are highly expressed in laticifers. Five of the eight genes are simultaneously regulated by ABA, jasmonic acid (JA) and ethylene (ET). The identification and characterization of HbPYLs should enable us to further understand the role of ABA signal in the rubber tree.

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