Downstream of GA₄, PbCYP78A6 participates in regulating cell cycle-related genes and parthenogenesis in pear (Pyrus bretshneideri Rehd.).

ABSTRACT:

Background

Parthenocarpy results in traits attractive to both consumers and breeders, and it overcomes the obstacle of self-incompatibility in the fruit set of horticultural crops, including pear (Pyrus bretshneider). However, there is limited knowledge regarding the genetic and molecular mechanisms that regulate parthenogenesis.

Results

Here, in a transcriptional comparison between pollination-dependent fruit and GA₄-induced parthenocarpy, PbCYP78A6 was identified and proposed as a candidate gene involved in parthenocarpy. PbCYP78A6 is similar to Arabidopsis thaliana CYP78A6 and highly expressed in pear hypanthia. The increased PbCYP78A6 expression, as assessed by RT-qPCR, was induced by pollination and GA₄ exposure. The ectopic overexpression of PbCYP

SUBMITTER: Zhang H 

PROVIDER: S-EPMC8223387 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature