Unraveling dwarfing mechanisms in Hedychium: insights into HcNAC140 and HcEXPA4 functionality.

ABSTRACT:

Background

The relatively tall stature of Hedychium limits its application in landscape gardening and pot cultivation while also posing challenges for crop management. Therefore, an in-depth understanding of the regulatory mechanisms controlling plant height is urgently needed to facilitate the development of suitable dwarf cultivars.  RESULTS: In this study, HcEXPA4, a gene that is significantly differentially expressed, was identified in the internode transcriptomes of Hedychium plants with extremely tall and dwarf phenotypes. Sequence alignment revealed that HcEXPA4 is functionally conserved with EXPA4 homologs from other species and is involved in regulating cell elongation. Virus-induced gene silencing (VIGS) of HcEXPA4 resulted in a dwarf phenotype in Hedychium seedlings. Con

SUBMITTER: Liang X 

PROVIDER: S-EPMC12723926 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature