期刊
SCIENCE
卷 350, 期 6261, 页码 688-691出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aac8370
关键词
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资金
- Plant Biology and Breeding department in INRA
- grants Program Saclay Plant Sciences (SPS) [ANR-10-LABX-40]
- Inititiative d'Excellence Paris-Saclay [Lidex-3P, ANR-11-IDEX-0003-02]
- L'Agence Nationale de la Recherche MELODY [ANR-11-BSV7-0024]
- European Research Council (ERC-SEXYPARTH)
- Agence Nationale de la Recherche (ANR) [ANR-11-BSV7-0024] Funding Source: Agence Nationale de la Recherche (ANR)
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.
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