Comparative transcriptome analysis revealed differential gene expression in multiple signaling pathways at flowering in polyploid Brassica rapa.

ABSTRACT:

Background

Polyploidy is widespread in angiosperms and has a significant impact on plant evolution, diversity, and breeding program. However, the changes in the flower development regulatory mechanism in autotetraploid plants remains relatively limited. In this study, RNA-seq analysis was used to investigate changes in signaling pathways at flowering in autotetraploid Brassica rapa.

Results

The study findings showed that the key genes such as CO, CRY2, and FT which promotes floral formation were down-regulated, whereas floral transition genes FPF1 and FD were up-regulated in autotetraploid B. rapa. The data also demonstrated that the positive regulators GA1 and ELA1 in the gibberellin's biosynthesis pathway were negatively regulated by polyploidy in B. rapa. Furthermore, tra

SUBMITTER: Braynen J 

PROVIDER: S-EPMC7802129 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature