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Genome-wide identification of ovate family in Citrus and functional characterization of CitOFP19

文献类型： 外文期刊

作者： Wu, Qingjiang 1 ; Sun, Juan 1 ; Fu, Jialing 1 ; Yu, Huiwen 1 ; Wang, Xia 1 ; Wang, Shaohua 2 ; Adhikari, Prakash Babu 1 ; Deng, Xiuxin 1 ; Xu, Qiang 1 ;

作者机构： 1.Huazhong Agr Univ, Key Lab Hort Plant Biol Minist Educ, Wuhan 430070, Peoples R China

2.Yunnan Acad Agr Sci, Inst Trop & Subtrop Cash Crops, Baoshan 678000, Peoples R China

3.Jiangxi Acad Agr Sci, Inst Hort Sci, Nanchang 330200, Peoples R China

4.Minnan Normal Univ, Key Lab Landscape Plants Fujian & Taiwan Character, Zhangzhou 363000, Peoples R China

关键词： Citrus; Fruit shape; OVATE domain; OFPs; CitOFP19

期刊名称：PLANT SCIENCE （ 影响因子：5.363； 五年影响因子：5.454 ）

ISSN： 0168-9452

年卷期： 2022 年 321 卷

页码：

收录情况： SCI

摘要： Fruit shape is an important trait for fruit appearance and commercial value. Diversity of fruit-shape has been utilized in the breeding of pummelo (Citrus maxima), a basic species in Citrus. However, little is known about genetic basis of fruit shape in citrus. In this study, we identified 16 OVATE family protein (OFP) genes in the pummelo genome. Phylogenetically, they were classified into three subfamilies, which was consistent with the classification of their Arabidopsis orthologs. Synteny analysis suggested that segment and tandem duplications were responsible for their expansion in pummelo. Expression pattern analysis of Citrus OFPs (CitOFPs) showed that CitOFP19 had significantly higher expression level in the ovaries of round pummelo than in those of pearshaped pummelo. Heterologous overexpression of CitOFP19 in tomato resulted in pear-shaped ovary and fruit shape. Taken together, this study characterized OVATE gene family in Citrus genome and assessed the function of CitOFP19.

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