Identification of a GA-Related Cis-Element Regulating Male Peduncle Elongation in Papaya.

ABSTRACT: Papaya (Carica papaya L.) is a tropical trioecious crop with males, hermaphrodites, and females. There is a sequence difference between male and hermaphrodite SHORT VEGETATIVE PHASE (CpSVP), making SVP a strong candidate gene controlling peduncle length in papaya. To study the spatial and temporal expression and function of CpSVP in Arabidopsis, we constructed a translation fusion structure based on the native promoter of SVP in papaya. In the 2kb promoter, strong GUS staining was observed in the floral organs and pedicels. In the 1kb promoter, there is no GUS expression in the floral organs, and it is barely detectable in pedicels. Removal of a GA responsive P-box cis-element in the 1kb promoter enhanced expression in the floral orga

SUBMITTER: Nguyen-Edquilang J 

PROVIDER: S-EPMC12845159 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature