Temporal and Geographic Genetic Divergence: Characterizing Sockeye Salmon Populations in the Chignik Watershed, Alaska, Using Single‐Nucleotide Polymorphisms

Autor:	Elisabeth K. Creelman, Ryan K. Simmons, Lorenz Hauser, William D. Templin, Lisa W. Seeb
Rok vydání:	2011
Předmět:	Linkage disequilibrium Watershed biology urogenital system Spawning habitat Ecology Single-nucleotide polymorphism Aquatic Science biology.organism_classification Natural variation Genetic divergence Genetic structure Oncorhynchus Ecology Evolution Behavior and Systematics
Zdroj:	Transactions of the American Fisheries Society. 140:749-762
ISSN:	1548-8659 0002-8487
Popis:	The high fidelity of Pacific salmon Oncorhynchus spp. to their natal spawning habitat often results in genetically divergent populations. Management and conservation of the natural variation within species is critical for maintaining robust populations. The Chignik watershed, Alaska, supports highly productive populations of sockeye salmon Oncorhynchus nerka that vary in return timing and spawning locations among breeding populations, presenting challenges to the management of commercially exploited stocks. We describe the genetic structure of the sockeye salmon populations spawning in the Chignik watershed using 45 single-nucleotide polymorphisms from 2,013 individuals representing 19 collections of spawning adults. From these data we estimated within-population statistics and among-population divergence, detected loci in linkage disequilibrium and loci that are F ST outliers, and tested loci for potential use in mixed-stock assessments. The results indicate significant genetic structure among t...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5f723efde0a3d9f09d09349476b2fa32 https://doi.org/10.1080/00028487.2011.584494 Zobrazit plný text záznamu Plný text