Genome-wide identification and expression profile of YABBY genes in Averrhoa carambola

文献类型： 外文期刊

第一作者： Li, Chengru

作者： Li, Chengru;Dong, Na;Shen, Liming;Lu, Meng;Zhai, Junwen;Zhao, Yamei;Chen, Lei;Wan, Zhiting;Liu, Zhongjian;Wu, Shasha;Ren, Hui

作者机构：

关键词： Averrhoa carambola; YABBY gene family; Genome-wide analysis; Fruit development; RT-qPCR

期刊名称：PEERJ （ 影响因子：3.061； 五年影响因子：3.537 ）

ISSN： 2167-8359

年卷期： 2022 年 9 卷

页码：

收录情况： SCI

摘要： Background: Members of the plant-specific YABBY gene family are thought to play an important role in the development of leaf, flower, and fruit. The YABBY genes have been characterized and regarded as vital contributors to fruit development in Arabidopsis thaliana and tomato, in contrast to that in the important tropical economic fruit star fruit (Averrhoa carambola), even though its genome is available. Methods: In the present study, a total of eight YABBY family genes (named from AcYABBY1 to AcYABBY8) were identified from the genome of star fruit, and their phylogenetic relationships, functional domains and motif compositions, physicochemical properties, chromosome locations, gene structures, protomer elements, collinear analysis, selective pressure, and expression profiles were further analyzed. Results: Eight AcYABBY genes (AcYABBYs) were clustered into five clades and were distributed on five chromosomes, and all of them had undergone negative selection. Tandem and fragment duplications rather than WGD contributed to YABBY gene number in the star fruit. Expression profiles of AcYABBYs from different organs and developmental stages of fleshy fruit indicated that AcYABBY4 may play a specific role in regulating fruit size. These results emphasize the need for further studies on the functions of AcYABBYs in fruit development.

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