Transcriptome and DNA methylome reveal insights into yield heterosis in the curds of broccoli (Brassica oleracea L var. italic).

ABSTRACT:

Background

Curds are the main edible organs, which exhibit remarkable yield heterosis in F₁ hybrid broccoli. However, the molecular basis underlying heterosis in broccoli remains elusive.

Results

In the present study, transcriptome profiles revealed that the hybridization made most genes show additive expression patterns in hybrid broccoli. The differentially expressed genes including the non-additively expressed genes detected in the hybrid broccoli and its parents were mainly involved in light, hormone and hydrogen peroxide-mediated signaling pathways, responses to stresses, and regulation of floral development, which suggested that these biological processes should play crucial roles in the yield heterosis of broccoli. Among them, light and hydrogen peroxide-me

SUBMITTER: Li H 

PROVIDER: S-EPMC6090608 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature