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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Abscisic acid (ABA) is an essential phytohormone that regulates plant growth and development, particularly in response to abiotic stress. The ABA receptor PYR/PYL/RCAR (PYL) family has been identified from some plant species. However, knowledge about the PYL family (VvPYLs) in grape ( Vitis vinifera ) is limited. This study aims to conduct genome-wide analyses of VvPYLs. We successfully identified eight  PYL  genes from the newest grape genome database. These  VvPYLs  could be divided into three subfamilies. Exon-intron structures were closely related to the phylogenetic relationship of the genes, and  PYL  genes that clustered in the same subfamily had a similar number of exons.  VvPYL1 ,  VvPYL2 ,  VvPYL4 ,  VvPYL7 , and  VvPYL8  were relatively highly expressed in roots.  VvPYL1 ,  VvPYL3 ,  VvPYL7 , and  VvPYL8  were expressed in response to cold, salt, or polyethylene glycol stress.  VvPYL6  was up-regulated by cold stress for 4 hours, and the expression of  VvPYL2  was 1.74-fold greater than that of the control under cold stress.  VvPYL8  was up-regulated 1.64-, 1.83-, and 1.90-fold compared with the control when treated with salt, PEG, or cold stress after 4 hours, respectively. Additionally, abiotic stress-inducible elements exist in  VvPYL2 ,  VvPYL3 ,  VvPYL7 , and  VvPYL8 , indicating that in these four genes, the response to abiotic stress may be regulated by  cis -regulatory elements. The transcriptional levels of  VvPYL1  and  VvPYL8  significantly increased from fruit set to the ripening stage and decreased in the berry when treated by exogenous ABA. The eight  VvPYL  genes have diverse roles in grape stress responses, berry ripening, or development. This work provides insight into the role of  VvPYL  gene families in response to abiotic stress and berry ripening in grape.

Analysis of PYL Genes and Their Potential Relevance to Stress Tolerance and Berry Ripening in Grape