Genetic diversity and structure of one of the most endangered freshwater fish species in Mexico: Tlaloc hildebrandi (Miller, 1950) and recognition of its evolutionarily significant units.

ABSTRACT: The endangered Chiapas killifish Tlaloc hildebrandi is an endemic freshwater species that lives in four subbasins of the Grijalva and Usumacinta basins, and one of the most geographically restricted species of the Produndulidae family. The species was originally described as endemic to springs in the high limestone plateau in San Cristóbal de Las Casas in the Río Amarillo subbasin (upper Grijalva basin). However, it was recently recorded in the Jataté and Tzaconejá subbasins in the upper Usumacinta basin, thereby expanding its known distribution range. The discovery of these populations is relevant not only for the conservation of the species but also for a better understanding of its evolutionary history. Currently, the scarce populations of T. hildebrandi, found in only a f

SUBMITTER: Beltran-Lopez RG 

PROVIDER: S-EPMC8404570 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature