title: New Nuclear SNP Markers Unravel the Genetic Structure and Effective Population Size of Albacore Tuna (Thunnus alalunga).
abstract: In the present study we have investigated the population genetic structure of albacore (Thunnus alalunga, Bonnaterre 1788) and assessed the loss of genetic diversity, likely due to overfishing, of albacore population in the North Atlantic Ocean. For this purpose, 1,331 individuals from 26 worldwide locations were analyzed by genotyping 75 novel nuclear SNPs. Our results indicated the existence of four genetically homogeneous populations delimited within the Mediterranean Sea, the Atlantic Ocean, the Indian Ocean and the Pacific Ocean. Current definition of stocks allows the sustainable management of albacore since no stock includes more than one genetic entity. In addition, short- and long-term effective population sizes were estimated for the North Atlantic Ocean albacore population, and results showed no historical decline for this population. Therefore, the genetic diversity and, consequently, the adaptive potential of this population have not been significantly affected by overfishing.
authors.affiliation: AZTI, Marine Research Division, Herrera Kaia Portualdea z/g, Pasaia (Gipuzkoa), Spain; Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Sarriena auzoa z/g, Leioa (Bizkaia), Spain.
authors.forename: Urtzi
authors.initials: U
authors.lastname: Laconcha
authors.affiliation: Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Sarriena auzoa z/g, Leioa (Bizkaia), Spain.
authors.forename: Mikel
authors.initials: M
authors.lastname: Iriondo
authors.affiliation: AZTI, Marine Research Division, Herrera Kaia Portualdea z/g, Pasaia (Gipuzkoa), Spain.
authors.forename: Haritz
authors.initials: H
authors.lastname: Arrizabalaga
authors.affiliation: Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Sarriena auzoa z/g, Leioa (Bizkaia), Spain.
authors.forename: Carmen
authors.initials: C
authors.lastname: Manzano
authors.affiliation: Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Sarriena auzoa z/g, Leioa (Bizkaia), Spain.
authors.forename: Pablo
authors.initials: P
authors.lastname: Markaide
authors.affiliation: Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Sarriena auzoa z/g, Leioa (Bizkaia), Spain.
authors.forename: Iratxe
authors.initials: I
authors.lastname: Montes
authors.affiliation: Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Sarriena auzoa z/g, Leioa (Bizkaia), Spain.
authors.forename: Iratxe
authors.initials: I
authors.lastname: Zarraonaindia
authors.affiliation: Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Sarriena auzoa z/g, Leioa (Bizkaia), Spain.
authors.forename: Igor
authors.initials: I
authors.lastname: Velado
authors.affiliation: Cell Biology & Environmental Toxicology Research Group, Research Centre for Experimental Marine Biology & Biotechnology (PIE) & Department of Zoology & Animal Cell Biology, University of the Basque Country (UPV/EHU), Sarriena auzoa z/g, Leioa (Bizkaia), Spain.
authors.forename: Eider
authors.initials: E
authors.lastname: Bilbao
authors.affiliation: AZTI, Marine Research Division, Herrera Kaia Portualdea z/g, Pasaia (Gipuzkoa), Spain.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Goñi
authors.affiliation: AZTI, Marine Research Division, Txatxarramendi Ugartea z/g, Sukarrieta (Bizkaia), Spain.
authors.forename: Josu
authors.initials: J
authors.lastname: Santiago
authors.affiliation: Laboratory of Pelagic Resources, Dirección Nacional de Recursos Acuáticos (DINARA), Constituyente 1497, Montevideo, Uruguay.
authors.forename: Andrés
authors.initials: A
authors.lastname: Domingo
authors.affiliation: Fisheries Faculty of Istanbul University, Laleli, Istanbul, Turkey.
authors.forename: Saadet
authors.initials: S
authors.lastname: Karakulak
authors.affiliation: Fisheries Faculty of Istanbul University, Laleli, Istanbul, Turkey.
authors.forename: Işık
authors.initials: I
authors.lastname: Oray
authors.affiliation: Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Sarriena auzoa z/g, Leioa (Bizkaia), Spain.
authors.forename: Andone
authors.initials: A
authors.lastname: Estonba
mesh_terms: D000818:Animals; D016000:Cluster Analysis; D019143:Evolution, Molecular; D040342:Genetic Structures; D014644:Genetic Variation; D005828:Genetics, Population; D005838:Genotype; D005843:Geography; D020641:Polymorphism, Single Nucleotide; D014413:Tuna / Q000235:genetics*