Patterns of genetic divergence in the Rio Grande cooter (Pseudemys gorzugi), a riverine turtle inhabiting an arid and anthropogenically modified system.
| Autor: | Vandewege MW; Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA., Gutierrez J; Biomedical Forensic Sciences, Anatomy and Neurobiology Department, Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA., Davis DR; Department of Biology, Eastern New Mexico University, Portales, NM, USA.; Biodiversity Collections, Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA., Forstner MRJ; Department of Biology, Texas State University, San Marcos, TX, USA., Mali I; Fisheries, Wildlife, and Conservation Biology Program, Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC, USA. |
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| Jazyk: | angličtina |
| Zdroj: | The Journal of heredity [J Hered] 2024 May 09; Vol. 115 (3), pp. 253-261. |
| DOI: | 10.1093/jhered/esae011 |
| Abstrakt: | The lower Rio Grande and Pecos River of the southwest United States have been heavily modified by human activities, profoundly impacting the integrity of their aquatic wildlife. In this context, we focused our study on the population genomics of the Rio Grande Cooter (Pseudemys gorzugi), a freshwater turtle of increasing conservation concern, residing in these two rivers and their tributaries. The genetic data revealed two distinct populations: one in the Pecos and Black Rivers of New Mexico and another in the Rio Grande and Devils River of Texas, with admixed individuals identified at the confluence of the Rio Grande and Pecos River. In addition to having a smaller geographic range, we found lower observed heterozygosity, reduced nucleotide diversity, and a smaller effective population size (Ne) in New Mexico population. Our results depict a significant isolation-by-distance pattern across their distribution, with migration being notably infrequent at river confluences. These findings are pivotal for future conservation and restoration strategies, emphasizing the need to recognize the unique needs of each population. (© The American Genetic Association. 2024.) |
| Databáze: | MEDLINE |
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