Characterization of MADS-Box Gene Family in Isatis indigotica and Functional Study of IiAP1 in Regulating Floral Transition and Formation
文献类型： 外文期刊
作者： Ma, Yanqin 1 ; Lan, Yanhong 1 ; Li, Ju 1 ; Long, Haicheng 1 ; Zhou, Yujie 1 ; Li, Zhi 1 ; Miao, Mingjun 1 ; Zhong, Jian 1 ; Wang, Haie 1 ; Chang, Wei 5 ; Xu, Ziqin 4 ; Yang, Liang 1 ;
作者机构： 1.Sichuan Acad Agr Sci, Hort Res Inst, Chengdu 610066, Peoples R China
2.Minist Agr & Rural Affairs PP China, Key Lab Hort Crops Biol & Germplasm Enhancement So, Chengdu 610066, Peoples R China
3.Vegetable Germplasm Innovat & Variety Improvement, Chengdu 610066, Peoples R China
4.Northwest Univ, Key Lab Resource Biol & Biotechnol Western China, Prov Key Lab Biotechnol, Minist Educ,Coll Life Sci, Xian 710069, Peoples R China
5.Sichuan Inst Edible Fungi, Chengdu 610066, Peoples R China
关键词：
期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）
ISSN： 2223-7747
年卷期： 2025 年 14 卷 1 期
页码：
收录情况： SCI
摘要： In flowering plants, MADS-box genes play regulatory roles in flower induction, floral initiation, and floral morphogenesis. Isatis indigotica (I. indigotica) is a traditional Chinese medicinal plant. However, available information concerning MADS-box genes in I. indigotica is insufficient. Based on the sequencing data of the I. indigotica transcriptome, we identified MADS-box gene-encoding transcription factors that have been shown to play critical roles in developmental processes. In this study, 102 I. indigotica MADS-box genes were identified and categorized into type I (M alpha, M beta, and M gamma) and type II (MIKCC and MIKC*) subfamilies. IiMADS proteins in the same cluster had similar motifs and gene structures. In total, 102 IiMADS-box genes were unevenly distributed across seven chromosomes. APETALA1 (AP1) encodes a MADS-box transcription factor which plays a pivotal role in determining floral meristem identity and also modulates developmental processes within the perianth. We then selected IiAP1 for functional studies and found that it is localized to the nucleus and highly expressed in inflorescence, sepals, and petals. The ectopic expression of IiAP1 in Arabidopsis resulted in early flowering and abnormal development of floral organs. Taken together, this research study carried out a systematic identification of MADS-box genes in I. indigotica and demonstrated that IiAP1 takes part in the regulation of floral transition and formation.
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