Regulation of flowering time in chrysanthemum by the R2R3 MYB transcription factor CmMYB2 is associated with changes in gibberellin metabolism

Autor:	Jiafu Jiang, Lu Zhu, Yunxiao Guan, Yanan Liu, Zhaohe Zhang, Muhammad Abuzar Jaffar, Sumei Chen, Aiping Song, Fadi Chen
Rok vydání:	2020
Předmět:	Gene knockdown fungi Wild type food and beverages Plant Science Horticulture Biology Biochemistry Cell biology Bimolecular fluorescence complementation RNA interference Genetics Gibberellin MYB Transcription factor Gene Biotechnology
Zdroj:	Horticulture Research. 7
ISSN:	2052-7276 2662-6810
DOI:	10.1038/s41438-020-0317-1
Popis:	The switch from vegetative growth to reproductive growth is a key event in the development of a plant. Here, the product of the chrysanthemum gene CmMYB2, an R2R3 MYB transcription factor that is localized in the nucleus, was shown to be a component of the switching mechanism. Plants engineered to overexpress CmMYB2 flowered earlier than did wild-type plants, while those in which CmMYB2 was suppressed flowered later. In both the overexpression and RNAi knockdown plants, a number of genes encoding proteins involved in gibberellin synthesis or signaling, as well as in the response to photoperiod, were transcribed at a level that differed from that in the wild type. Both yeast two-hybrid and bimolecular fluorescence complementation assays revealed that CmMYB2 interacts with CmBBX24, a zinc-finger transcription factor known to regulate flowering by its influence on gibberellin synthesis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::909cca116375eae279b5dc5a54a080b2 https://doi.org/10.1038/s41438-020-0317-1 Zobrazit plný text záznamu