Control of sexuality by the sk1-encoded UDP-glycosyltransferase of maize.
Sci Adv
; 2(10): e1600991, 2016 Oct.
Article
en En
| MEDLINE
| ID: mdl-27819048
ABSTRACT
Sex determination in maize involves the production of staminate and pistillate florets from an initially bisexual floral meristem. Pistil elimination in staminate florets requires jasmonic acid signaling, and functional pistils are protected by the action of the silkless 1 (sk1) gene. The sk1 gene was identified and found to encode a previously uncharacterized family 1 uridine diphosphate glycosyltransferase that localized to the plant peroxisomes. Constitutive expression of an sk1 transgene protected all pistils in the plant, causing complete feminization, a gain-of-function phenotype that operates by blocking the accumulation of jasmonates. The segregation of an sk1 transgene was used to effectively control the production of pistillate and staminate inflorescences in maize plants.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Proteínas de Plantas
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Glicosiltransferasas
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Zea mays
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Peroxisomas
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Inflorescencia
Idioma:
En
Revista:
Sci Adv
Año:
2016
Tipo del documento:
Article
País de afiliación:
Estados Unidos