Skip to Main content Skip to Navigation
Journal articles

A cucurbit androecy gene reveals how unisexual flowers develop and dioecy emerges

Abstract : Understanding the evolution of sex determination in plants requires identifying the mechanisms underlying the transition from monoecious plants, where male and female flowers coexist, to unisexual individuals found in dioecious species. We show that in melon and cucumber, the androecy gene controls female flower development and encodes a limiting enzyme of ethylene biosynthesis, ACS11. ACS11 is expressed in phloem cells connected to flowers programmed to become female, and ACS11 loss-of-function mutants lead to male plants (androecy). CmACS11 represses the expression of the male promoting gene CmWIP1 to control the development and the coexistence of male and female flowers in monoecious species. Because monoecy can lead to dioecy, we show how a combination of alleles of CmACS11 and CmWIP1 can create artificial dioecy
Document type :
Journal articles
Complete list of metadata

https://hal.inrae.fr/hal-02636940
Contributor : Migration Prodinra <>
Submitted on : Wednesday, May 27, 2020 - 9:47:48 PM
Last modification on : Thursday, December 3, 2020 - 4:46:03 PM

Identifiers

Citation

Adnane Boualem, Christelle Troadec, Céline Camps, Afef Lemhemdi, Halima Morin, et al.. A cucurbit androecy gene reveals how unisexual flowers develop and dioecy emerges. Science, American Association for the Advancement of Science, 2015, 350 (6261), pp.688-691. ⟨10.1126/science.aac8370⟩. ⟨hal-02636940⟩

Share

Metrics

Record views

2866