Transcriptomic analysis reveals the regulatory module of apple (Malus × domestica) floral transition in response to 6-BA.

ABSTRACT:

Background

Insufficient production of flower buds is an intractable problem in 'Fuji' apple orchards. Although cytokinin (CK) promotes flower bud formation in apple trees, little is known about the mechanisms regulating this phenomenon.

Results

In the present study, high-throughput RNA sequencing (RNA-Seq) of 'Nagafu No. 2' buds was conducted to characterize the transcriptional response to 6-BA treatment during key period of floral transition. A weighted gene co-expression network analysis (WGCNA) of the differentially expressed genes identified hormone signal transduction pathways, totaling 84 genes were highly correlated with the expression pattern of flowering-time genes. The up-regulation of CK signal components and a gibberellin (GA) signal repressor were found to contr

SUBMITTER: Li Y 

PROVIDER: S-EPMC6402183 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature