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

The  Arabidopsis  homeotic genes  APETALA3  ( AP3 ) and  PISTILLATA  ( PI ) are B genes which encode MADS-box transcription factors and specify petal and stamen identities. In the current study, the stamen carpelloid (SC) mutants, HGMS and AMS, of  B. rapa  and  B. napus  were investigated and two types of  AP3  genes,  B.AP3.a  and  B.AP3.b , were functional characterized.  B.AP3.a  and  B.AP3.b  share high similarity in amino acid sequences except for 8 residues difference located at the C-terminus. Loss of this 8 residues in  B.AP3.b  led to the change of  PI -derived motifs. Meanwhile,  B.AP3.a  specified petal and stamen development, whereas  B.AP3.b  only specified stamen development. In  B. rapa , the mutations of both genes generated the SC mutant HGMS. In  B. napus  that contained two  B.AP3.a  and two  B.AP3.b , loss of the two  B.AP3.a  functions was the key reason for the apetalous mutation, however, the loss-of-function in all four  AP3  was related to the SC mutant AMS. We inferred that the 8 residues or the  PI -derived motif in  AP3  gene probably relates to petal formation.

Functional Analysis of the Two Brassica AP3 Genes Involved in Apetalous and Stamen Carpelloid Phenotypes