Differential transcription pathways associated with rootstock-induced dwarfing in breadfruit (Artocarpus altilis) scions.

ABSTRACT:

Background

Breadfruit (Artocarpus altilis) is a traditional staple tree crop throughout the tropics. Through interspecific grafting, a dwarf phenotype with over 50% reduction in plant height was identified when marang (Artocarpus odoratissimus) rootstocks were used. However, the molecular mechanism underlying the rootstock-induced breadfruit dwarfing is poorly understood.

Results

An RNA-sequencing study of breadfruit scions at 22 months after grafting identified 5409 differentially expressed genes (DEGs) of which 2069 were upregulated and 3339 were downregulated in scion stems on marang rootstocks compared to those on self-graft. The DEGs were predominantly enriched for biological processes involved in carbon metabolism, cell wall organization, plant hormone signal transduct

SUBMITTER: Zhou Y 

PROVIDER: S-EPMC8178858 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature