Genome-wide identification and expression analysis of GA20ox and GA3ox genes during pod development in peanut
文献类型: 外文期刊
第一作者: Sun, Jie
作者: Sun, Jie;Zhang, Xiaoqian;Zhao, Chuanzhi;Hou, Lei;Pan, Jiaowen;Wang, Xingjun;Zhao, Shuzhen;Sun, Jie;Hou, Lei;Pan, Jiaowen;Wang, Xingjun;Zhao, Shuzhen;Sun, Jie;Zhang, Xiaoqian;Wang, Xingjun;Zhao, Shuzhen;Fu, Chun;Ahmad, Naveed;Naeem, Muhammad
作者机构:
关键词: Arachis hypogaea; Gibberellin biosynthesis; Gene expression analysis; Pod development
期刊名称:PEERJ ( 影响因子:2.7; 五年影响因子:3.1 )
ISSN: 2167-8359
年卷期: 2023 年 11 卷
页码:
收录情况: SCI
摘要: Background. Gibberellins (GAs) play important roles in regulating peanut growth and development. GA20ox and GA3ox are key enzymes involved in GA biosynthesis. These enzymes encoded by a multigene family belong to the 2OG-Fe (II) oxygenase superfamily. To date, no genome-wide comparative analysis of peanut AhGA20ox and AhGA3ox-encoding genes has been performed, and the roles of these genes in peanut pod development are not clear.Methods. A whole-genome analysis of AhGA20ox and AhGA3ox gene families in peanut was carried out using bioinformatic tools. The expression of these genes at different stage of pod development was analyzed using qRT-PCR.Results. In this study, a total of 15 AhGA20ox and five AhGA3ox genes were identified in peanut genome, which were distributed on 14 chromosomes. Phylogenetic analysis divided the GA20oxs and GA3oxs into three groups, but AhGA20oxs and AhGA3oxs in two groups. The conserved pattern of gene structure, cis-elements, and protein motifs further confirmed their evolutionary relationship in peanut. AhGA20ox and AhGA3ox genes were differential expressed at different stages of pod development. The strong expression of AhGA20ox1/AhGA20ox4, AhGA20ox12/AhGA20ox15, AhGA3ox1 and AhGA3ox4/AhGA3ox5 in S1-stage indicated that these genes could have a key role in controlling peg elongation. Furthermore, AhGA20ox and AhGA3ox also showed diverse expression patterns in different peanut tissues including leaves, main stems, flowers and inflorescences. Noticeably, AhGA20ox9/AhGA20ox11 and AhGA3o4/AhGA3ox5 were highly expressed in the main stem, whereas the AhGA3ox1 and AhGA20ox10 were strongly expressed in the inflorescence. The expression lev-els of AhGA20ox2/AhGA20ox3, AhGA20ox5/AhGA20ox6, AhGA20ox7/AhGA20ox8, AhGA20ox13/AhGA20ox14 and AhGA3ox2/AhGA3ox3 were high in the flowers, sug-gesting their involvement in flower development. These results provide a basis for deciphering the roles of AhGA20ox and AhGA3ox in peanut growth and development, especially in pod development.
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