AGAMOUS-LIKE24 controls pistil number in Japanese apricot by targeting the KNOTTED1-LIKE gene KNAT2/6-a
In: Plant Physiology, Jg. 195 (2024), Heft 1, S. 566-579
Online
academicJournal
Zugriff:
The formation of multi-pistil flowers reduces the yield and quality in Japanese apricot (Prunus mume). However, the molecular mechanism underlying the formation of multi-pistil flowers remains unknown. In the current study, overexpression of PmKNAT2/6-a, a class I KNOTTED1-like homeobox (KNOX) member, in Arabidopsis (Arabidopsis thaliana) resulted in a multi-pistil phenotype. Analysis of the upstream regulators of PmKNAT2/6-a showed that AGAMOUS-like 24 (PmAGL24) could directly bind to the PmKNAT2/6-a promoter and regulate its expression. PmAGL24 also interacted with Like Heterochromatin Protein 1 (PmLHP1) to recruit lysine trimethylation at position 27 on histone H3 (H3K27me3) to regulate PmKNAT2/6-a expression, which is indirectly involved in multiple pistils formation in Japanese apricot flowers. Our study reveals that the PmAGL24 transcription factor, an upstream regulator of PmKNAT2/6-a, regulates PmKNAT2/6-a expression via direct and indirect pathways and is involved in the formation of multiple pistils in Japanese apricot.
Titel: |
AGAMOUS-LIKE24 controls pistil number in Japanese apricot by targeting the KNOTTED1-LIKE gene KNAT2/6-a
|
---|---|
Autor/in / Beteiligte Person: | Bai, Yang ; Zhou, Pengyu ; Ni, Zhaojun ; Iqbal, Shahid ; Ouma, Kenneth Omondi ; Huang, Xiao ; Gao, Feng ; Ma, Chengdong ; Shi, Ting ; Gao, Zhihong ; National Natural Science Foundation of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions |
Link: | |
Zeitschrift: | Plant Physiology, Jg. 195 (2024), Heft 1, S. 566-579 |
Veröffentlichung: | Oxford University Press (OUP), 2024 |
Medientyp: | academicJournal |
ISSN: | 0032-0889 |
DOI: | 10.1093/plphys/kiae069 |
Sonstiges: |
|