caa a22 4500 445858133 CHVBK 20180317145434.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10592-010-0163-z doi (NATIONALLICENCE)springer-10.1007/s10592-010-0163-z Phylogeography, genetic structure, and gene flow in the endemic freshwater shrimp Palaemonetes suttkusi from Cuatro Ciénegas, Mexico [Elektronische Daten] [Johel Chaves-Campos, Steven Johnson, Francisco García de León, C. Hulsey] The valley of Cuatro Ciénegas in Mexico has the highest degree of local endemicity of any habitat in North America. A large number of endemic aquatic species occur both in the Cuatro Ciénegas basin and in the upper parts of the Río Salado de los Nadadores drainage, located immediately to the east of the valley. No natural surface flow occurs between these basins but artificial canals connect both areas. It is not clear whether the sharing of endemics between the Cuatro Ciénegas basin and the Río Salado is due to migration through canals. We conducted a phylogeographic study of mitochondrial haplotypes of the endemic shrimp Palaemonetes suttkusi to determine the evolutionary distinctiveness of the population found in Río Salado. We discovered that P. suttkusi likely has occurred naturally in both basins well into the distant past. Based on molecular clock analyses of the COI gene, the populations in the Río Salado and much of the Cuatro Ciénegas basin likely began diverging from each other between 1.9 and 11.2Myr ago. The general levels of divergence are substantial but our results suggest there has also likely been recent gene flow between these basins. This is consistent with migration through human-made canals, but also consistent with the occurrence of natural gene flow during intermittent wet periods in the past million years. We also found significant differentiation of the Pozas Azules area from the rest of the Cuatro Ciénegas basin, a finding that is concordant with several phylogeographic studies on other aquatic endemics in Cuatro Ciénegas. We recommend that the upper parts of the Río Salado, the Pozas Azules area, and the rest of the Cuatro Ciénegas basin should each be considered independent evolutionarily significant units for conservation, and that migration of species through human-made canals should be monitored and controlled. Springer Science+Business Media B.V., 2010 Phylogeography nationallicence mtDNA variation nationallicence Gene flow nationallicence Conservation genetics nationallicence Evolutionary significant units nationallicence Shrimp nationallicence Chaves-Campos Johel Department of Biological Sciences, University of New Orleans, 2000 Lakeshore Drive, 70148, New Orleans, LA, USA aut Johnson Steven Department of Biological Sciences, University of New Orleans, 2000 Lakeshore Drive, 70148, New Orleans, LA, USA aut García de León Francisco Laboratorio de Genética para la Conservación, Centro de Investigaciones Biológicas del Noroeste, P.O. Box 128, La Paz, B.C.S., Mexico aut Hulsey C. Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, 569 Dabney Hall, 37996, Knoxville, TN, USA aut Conservation Genetics Springer Netherlands 12/2(2011-04-01), 557-567 1566-0621 12:2<557 2011 12 10592 https://doi.org/10.1007/s10592-010-0163-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10592-010-0163-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chaves-Campos Johel Department of Biological Sciences, University of New Orleans, 2000 Lakeshore Drive, 70148, New Orleans, LA, USA aut NATIONALLICENCE 700 1- Johnson Steven Department of Biological Sciences, University of New Orleans, 2000 Lakeshore Drive, 70148, New Orleans, LA, USA aut NATIONALLICENCE 700 1- García de León Francisco Laboratorio de Genética para la Conservación, Centro de Investigaciones Biológicas del Noroeste, P.O. Box 128, La Paz, B.C.S., Mexico aut NATIONALLICENCE 700 1- Hulsey C. Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, 569 Dabney Hall, 37996, Knoxville, TN, USA aut NATIONALLICENCE 773 0- Conservation Genetics Springer Netherlands 12/2(2011-04-01), 557-567 1566-0621 12:2<557 2011 12 10592 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer