Genetic diversity and population history of Tanichthys albonubes (Teleostei: Cyprinidae): Implications for conservation

Over the past century, we have seen extensive declines in animal populations and many species are barely avoiding extinction, such as Tanichthys albonubes. T. albonubes is a cyprinid fish located near Vietnam and China. Conservation biologists can now more broadly access additional resources such as population genetics due to declining costs of genetic sequencing over the last decade. Zhao and colleagues sampled DNA from 358 species across three hatcheries. They analyzed 2032 bp from the d‐loop and cyt b of the mitochondrial genome, 2241 bp from RAG1 and ENC1 in autosomal DNA, 13 microsatellite loci. They found that the T. albonubes from all three hatcheries originated from a single source in China and contributed almost all genetic diversity observed along the Pearl River. They argue that habitate destruction and fragmentation have resulted in small and isolated populations that threaten the ability of this freshwater fish to maintain self-supporting wild populations.

Joshua Porter - 04/06/2020 Potluck

https://onlinelibrary.wiley.com/doi/pdf/10.1002/aqc.2840?casa_token=jkv1KwckwsMAAAAA:L0AdFc46n_nY-D60TtCyPSlc82qM_6qATdAzk6dcs0DDp8fFmes3UEX3zz393Zj3nF0FlfGUaz0sUg