ZmGRAS11, transactivated by Opaque2, positively regulates kernel size in maize.
J Integr Plant Biol
; 63(12): 2031-2037, 2021 Dec.
Article
em En
| MEDLINE
| ID: mdl-34850567
ABSTRACT
Although the genetic basis for endosperm development in maize (Zea mays) has been well studied, the mechanism for coordinating grain filling with increasing kernel size remains elusive. Here, we report that increased kernel size was selected during modern breeding and identify a novel DELLA-like transcriptional regulator, ZmGRAS11, which positively regulates kernel size and kernel weight in maize. We find that Opaque2, a core transcription factor for zein protein and starch accumulation, transactivates the expression of ZmGRAS11. Our data suggest that the Opaque2-ZmGRAS11 module mediates synergistic endosperm enlargement with grain filling.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Zeína
/
Zea mays
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
J Integr Plant Biol
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
China