期刊
ENVIRONMENTAL BIOLOGY OF FISHES
卷 105, 期 8, 页码 1111-1127出版社
SPRINGER
DOI: 10.1007/s10641-022-01320-x
关键词
Molecular; Rays; DNA; Cytogenetics; Transcriptome
资金
- Fundacao Cearense de Apoio ao Desenvolvimento Cientifico e Tecnologico (FUNCAP
- Ceara State Government)
Potamotrygoninae is a group of stingrays that are well suited to South American freshwater ecosystems. This review discusses the recent advances in genetic studies of this group and highlights the potential future directions for research. Despite the increasing number of studies, there are still unanswered questions, particularly regarding the high genetic similarity observed among Potamotrygon species. The application of genomics techniques may provide insights into the complex issues surrounding freshwater stingrays.
Potamotrygoninae is a group of stingrays fully adapted to South American freshwater ecosystems. Recently, there has been an increase in the number of publications applying genetic tools. The present review compiles and discusses the recent advances of these studies and the future perspectives for the genetic studies of this group. Mitochondrial markers are the main molecular marker applied, especially cytochrome c oxidase I and cytochrome b. The genetic studies were grouped in thematic areas, and the advances and challenges of each topic comprising evolution, taxonomy, phylogeography, hybridization, cytogenetics, and transcriptomes were discussed. Despite the recent efforts and increase in the number of studies in recent years, several questions for the group remain unanswered, mainly for Potamotrygon species, which present high genetic similarity despite their phenotypic plasticity. The application of genomics techniques might aid to elucidate the complex questions still open for freshwater stingrays.
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