Life’s Going Swimmingly for All-female Fish Species

An all-female freshwater fish species named the Amazon molly that inhabits rivers and creeks together the Texas-Mexico border is dwelling proof that sexual reproduction might be vastly more than-rated.

Scientists mentioned on Monday they have deciphered the genome of the Amazon molly, a single of the couple of vertebrate species to depend on asexual replica, and discovered that it experienced none of the genetic flaws, this sort of as an accumulation of harmful mutations or a deficiency of genetic diversity, they experienced anticipated.

They identified that the Amazon molly, named following the fierce feminine warriors of historical Greek mythology, offers a hardy genetic make-up that tends to make it equally suit, or even more so, than fish employing sexual reproduction in which the two maternal and paternal genes are handed alongside to offspring.