Squalius alburnoides

Squalius alburnoides is a fascinating fish from the Cyprinidae family, inhabiting the rivers and streams of Portugal and Spain. This species is currently facing the threat of habitat loss.

What makes Squalius alburnoides particularly intriguing is its distinctive evolutionary and reproductive background. This fish is a product of hybridization between a female Squalius pyrenaicus and a male from an unidentified cyprinid species. Consequently, Squalius alburnoides carries the genetic material of both parent species and can even possess multiple sets of genomes, a condition known as polyploidy.

Regarding reproduction, Squalius alburnoides demonstrates remarkable versatility. It can reproduce asexually, undergo conventional meiosis, or utilize a process called hybridogenesis to transmit its genetic material to the next generation. This reproductive flexibility aids in preserving and perpetuating its unique genetic heritage.