Finding the right balance: The enduring role of florigens during cereal inflorescence development and their influence on fertility.
Curr Opin Plant Biol
; 79: 102539, 2024 06.
Article
em En
| MEDLINE
| ID: mdl-38599051
ABSTRACT
Flowering is a vital process in a plant's lifecycle and variation for flowering-time has helped cereals adapt to diverse environments. Much cereal research has focused on understanding how flowering signals, or florigens, regulate the floral transition and timing of ear emergence. However, flowering genes also perform an enduring role during inflorescence development, with genotypes that elicit a weaker flowering signal producing more elaborately branched inflorescences with extra floret-bearing spikelets. While this outcome indicates that variable expression of flowering genes could boost yield potential, further analysis has shown that dampened florigen levels can compromise fertility, negating the benefit of extra grain-producing sites. Here, we discuss ways that florigens contribute to early and late inflorescence development, including their influence on branch/spikelet architecture and fertility. We propose that a deeper understanding of the role for florigens during inflorescence development could be used to balance the effects of florigens throughout flowering to improve productivity.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Grão Comestível
/
Inflorescência
/
Fertilidade
/
Florígeno
Idioma:
En
Revista:
Curr Opin Plant Biol
Assunto da revista:
BOTANICA
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Austrália