Author:
Zhou Zhi-Li,Wang Guang-Yan,Wang Xi-Long,Huang Xiao-Juan,Zhu Zhang-Shichang,Wang Lin-Lin,Yang Yong-Ping,Duan Yuan-Wen
Abstract
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.
Funder
National Natural Science Foundation of China
Second Tibetan Plateau Scientific Expedition and Research (STEP) program
Publisher
Springer Science and Business Media LLC
Cited by
1 articles.
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