English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Parthenocarpy, or pollination-independent fruit set, is an attractive trait for fruit production and can be induced by increased responses to the phytohormone gibberellin (GA), which regulates diverse aspects of plant development. GA signaling in plants is negatively regulated by DELLA proteins. A loss-of-function mutant of tomato  DELLA  ( SlDELLA ),  procera  ( pro ) thus exhibits enhanced GA-response phenotypes including parthenocarpy, although the  pro  mutation also confers some disadvantages for practical breeding. This study identified a new milder hypomorphic allele of  SlDELLA ,  procera-2  ( pro-2 ), which showed weaker GA-response phenotypes than  pro . The  pro-2  mutant contains a single nucleotide substitution, corresponding to a single amino acid substitution in the SAW subdomain of the SlDELLA. Accumulation of the mutated  SlDELLA  transcripts in wild-type (WT) resulted in parthenocarpy, while introduction of intact  SlDELLA  into  pro-2  rescued mutant phenotypes. Yeast two-hybrid assays revealed that SlDELLA interacted with three tomato homologues of GID1 GA receptors with increasing affinity upon GA treatment, while their interactions were reduced by the  pro  and  pro-2  mutations. Both  pro  and  pro-2  mutants produced higher fruit yields under high temperature conditions, which were resulted from higher fruit set efficiency, demonstrating the potential for genetic parthenocarpy to improve yield under adverse environmental conditions.

Identification and functional study of a mild allele of SlDELLA gene conferring the potential for improved yield in tomato