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

In our previous efforts to understand the regulatory mechanisms of cucumber unisexual flower development, we observed a stamen-specific down-regulation of the ethylene receptor  CsETR1  in stage 6 female flowers of cucumber ( Cucumis sativus  L.). This down-regulation is correlated with the primordial anther-specific DNA damage that characterizes inappropriate stamen development in cucumber female flowers. To understand how  CsETR1  is down regulated in the stamen, we characterized a cucumber MADS box gene homologous to  Arabidopsis AP3 ,  CsAP3 . We demonstrated that  CsAP3  is functionally equivalent to the  Arabidopsis  B-class MADS gene  AP3 . However, three novel characteristics of CsAP3 were found. These include firstly, binding and activating  CsETR1  promoter  in vitro  and  in vivo ; secondly, containing a GV repeat in its C-terminus, which is conserved in cucurbits and required for the transcription activation; and thirdly, decreased expression as the node number increases, which is similar to that found for  CsETR1 . These findings revealed not only the conserved function of  CsAP3  as a B-class floral identity gene, but also its unique functions in regulation of female flower development in cucumber.

CsAP3: A Cucumber Homolog to Arabidopsis APETALA3 with Novel Characteristics