The fruit glossiness locus, dull fruit (D), encodes a C₂H₂-type zinc finger transcription factor, CsDULL, in cucumber (Cucumis sativus L.).

ABSTRACT: Fruit glossiness is an important external fruit quality trait for fresh-consumed cucumber fruit, affecting its marketability. Dull fruit appearance is mainly controlled by a single gene, D (for dull fruit) that is dominant to glossy fruit (dd), but the molecular mechanism controlling fruit glossiness is unknown. In the present study, we conducted map-based cloning of the D locus in cucumber and identified a candidate gene (Csa5G577350) that encodes a C₂H₂-type zinc finger transcription factor, CsDULL. A 4895-bp deletion including the complete loss of CsDULL resulted in glossy fruit. CsDULL is highly expressed in the peel of cucumber fruit, and its expression level is positively correlated with the accumulation of cutin

SUBMITTER: Zhai X 

PROVIDER: S-EPMC9437717 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature