Genome-wide identification and characterization of the BBX gene family in pineapple reveals that candidate genes are involved in floral induction and flowering
文献类型： 外文期刊
作者： Ouyang, Yanwei 1 ; Pan, Xiaolu 1 ; Wei, Yongzan 2 ; Wang, Jing 1 ; Xu, Xinxin 1 ; He, Yukun 1 ; Zhang, Xiaohan 1 ; Li, Ziqiong 1 ; Zhang, Hongna 1 ;
作者机构： 1.Hainan Univ, Hort Coll, Hainan Prov Key Lab Qual Control Trop Hort Crops, Haikou 570228, Hainan, Peoples R China
2.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Key Lab Biol & Genet Resources Trop Crops, Hainan Inst Trop Agr Resources,Minist Agr, Haikou 571101, Hainan, Peoples R China
关键词： Pineapple (Ananas comosus L. Merr); BBX family; Genome-wide; Expression profiles; Flowering
期刊名称：GENOMICS （ 影响因子：4.31； 五年影响因子：4.38 ）
ISSN： 0888-7543
年卷期： 2022 年 114 卷 4 期
页码：
收录情况： SCI
摘要： B-box zinc finger proteins contain one or two B-box domains, and sometimes, a CCT domain, which are involved in many biological processes, such as photomorphogenesis, flowering, anthocyanin synthesis and abiotic stress resistance. But the BBX gene family in pineapple has not been systematically studied. Nineteen BBX genes were detected in pineapple genome and divided into five groups according to phylogenetic analysis. The results of transcriptome analysis and RT-qPCR showed that most of AcBBX members were highly expressed during the flowering process, indicating that AcBBX gene may be involved in flower bud differentiation and morphogenesis. Transcriptional activation analysis showed that AcBBX6 and AcBBX18 had transcriptional activity and were located in the nucleus. Overexpression of AcBBX18 promoted flowering in Arabidopsis thaliana. These results provided a basis for further study functions and regulatory mechanism of BBX members in pineapple floral induction and flower development.
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