The adaptive evolution of Leuciscus waleckii in Lake Dali Nur and convergent evolution of Cypriniformes fishes inhabiting extremely alkaline environments.

ABSTRACT: Leuciscus waleckii is widely distributed in Northeast Asia and has high economic value. The population in Lake Dali Nur can adapt to extremely alkaline-saline water with bicarbonate over 50 mmol/L (pH 9.6), thus providing an exceptional model for exploring the mechanisms of adaptive evolution under extreme alkaline environments. Here, we assembled a high-quality chromosome-level reference genome for L. waleckii from Lake Dali Nur. Based on the resequencing of 85 individuals from divergent populations, the historical population size of L.waleckii in Lake Dali Nur dramatically expanded in a thousand years approximately 13,000 years ago, and experienced a cliff recession in the process of adapting to the alkaline environment of Lake Dali Nur approximately 6,000 years ago. Genome scans between

SUBMITTER: Zhou Z 

PROVIDER: S-EPMC10210623 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature