Identification and molecular characterization of an IDA-like gene from litchi, LcIDL1, whose ectopic expression promotes floral organ abscission in Arabidopsis.
Sci Rep
; 6: 37135, 2016 11 15.
Article
de En
| MEDLINE
| ID: mdl-27845425
Unexpected abscission of flowers or fruits is a major limiting factor for crop productivity. Key genes controlling abscission in plants, especially in popular fruit trees, are largely unknown. Here we identified a litchi (Litchi chinensis Sonn.) IDA-like (INFLORESCENCE DEFICIENT IN ABSCISSION-like) gene LcIDL1 as a potential key regulator of abscission. LcIDL1 encodes a peptide that shows the closest homology to Arabidopsis IDA, and is localized in cell membrane and cytoplasm. Real-time PCR analysis showed that the expression level of LcIDL1 accumulated gradually following flower abscission, and it was obviously induced by fruit abscission-promoting treatments. Transgenic plants expressing LcIDL1 in Arabidopsis revealed a role of LcIDL1 similar to IDA in promoting floral organ abscission. Moreover, ectopic expression of LcIDL1 in Arabidopsis activated the expression of abscission-related genes. Taken together, our findings provide evidence that LcIDL1 may act as a key regulator in control of abscission.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Protéines végétales
/
Végétaux génétiquement modifiés
/
Arabidopsis
/
Régulation de l'expression des gènes végétaux
/
Litchi
/
Fleurs
/
Protéines membranaires
Type d'étude:
Diagnostic_studies
/
Prognostic_studies
Langue:
En
Journal:
Sci Rep
Année:
2016
Type de document:
Article
Pays d'affiliation:
Chine
Pays de publication:
Royaume-Uni