Flower color polymorphism of a wild Iris on the Qinghai-Tibet plateau.
BMC Plant Biol
; 23(1): 633, 2023 Dec 09.
Article
en En
| MEDLINE
| ID: mdl-38066415
ABSTRACT
BACKGROUND:
Flower color plays a crucial role in attracting pollinators and facilitating environmental adaptation. Investigating the causes of flower color polymorphism and understanding their potential effects on both ecology and genetics can enhance our understanding of flower color polymorphism in wild plant.RESULTS:
In this study, we examined the differences of potential male and female fitness between purple- and yellow- flower individuals in Iris potaninii on the Qinghai-Tibet Plateau, and screened key genes and positively selective genes involved in flower color change. Our results showed that yellow flower exhibited a higher pollen-to-ovule ratio. Yellow flowers were derived from purple flowers due to the loss of anthocyanins, and F3H could be an essential gene affecting flower color variation though expression regulation and sequence polymorphism in this species. Furthermore, our findings suggest that genes positively selected in yellow-flowered I. potaninii might be involved in nucleotide excision repair and plant-pathogen interactions.CONCLUSIONS:
These results suggest that F3H induces the flower color variation of Iris potaninii, and the subsequent ecological and additive positive selection on yellow flowers may further enhance plant adaptations to alpine environments.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Género Iris
Límite:
Humans
País/Región como asunto:
Asia
Idioma:
En
Revista:
BMC Plant Biol
Asunto de la revista:
BOTANICA
Año:
2023
Tipo del documento:
Article
País de afiliación:
China