Conservation Genetics of an Undescribed Species ofDionda(Teleostei: Cyprinidae) in the Rio Grande Drainage in Western Texas

Autor:	Ashley H. Hanna, Gary P. Garrett, Evan W. Carson, John R. Gold, K. W. Conway
Rok vydání:	2013
Předmět:	Conservation genetics geography Teleostei education.field_of_study geography.geographical_feature_category biology Ecology Population biology.organism_classification Genus Dionda Tributary Cyprinidae Microsatellite education Ecology Evolution Behavior and Systematics
Zdroj:	The Southwestern Naturalist. 58:35-40
ISSN:	1943-6262 0038-4909
Popis:	The systematic and conservation-genetic status of a population of the cyprinid genus Dionda in Alamito Creek, a tributary of the Rio Grande in Big Bend Ranch State Park, Presidio County, Texas, was assessed using mtDNA sequences and nuclear-encoded microsatellites. Phylogenetic analyses of the mitochondrial cytochrome b (cytb) gene revealed that the Dionda in Alamito Creek likely is conspecific with an undescribed species (Dionda species 1) known only from the Rio Conchos and Rio Nazas basins of Mexico and in the USA from Cibolo Creek, a small tributary of the Rio Grande drainage. Genetic variation of Dionda in Alamito Creek is extremely low. All 18 fish assayed for 1,533 base pairs of mitochondrial mtDNA (cytb and ND5 sequences) had the same haplotype, and 40 fish assayed for 34 nuclear-encoded microsatellites (25 monomorphic) averaged only 1.44 alleles/microsatellite (HE = 0.12). Estimates of current effective size (Ne) and effective number of breeders (Nb) were 22 and 28, respectively. Bayesia...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::61254b7af62e8d39fd88890e0aaf10af https://doi.org/10.1894/0038-4909-58.1.35 Zobrazit plný text záznamu Plný text ve formátu PDF