A Highly Polymorphic Plasma Protein Locus in Brown Trout (Salmo trutta L.) Populations from Portugal
Authors: Antunes, A.; Ferrand, N.; Alexandrino, P.
Source: Biochemical Genetics, Volume 38, Numbers 7-8, August 2000 , pp. 217-226(10)
Abstract:Genetic polymorphism of an unidentified plasma protein (PX) is described for the first time in Salmo trutta (L.) by means of isoelectric focusing. The analysis of 414 individuals from different geographic origins in Portugal allowed the identification of nine alleles. Heterozygosity in natural populations is generally above 0.60, thus giving similar values to those reported for brown trout microsatellite loci. Substructuring of Portuguese brown trout is evident between northern and southern basins. Genetic affinities between the southernmost rivers and the hatchery stock were detected, suggesting the existence of recent stocking influences.
Document Type: Research Article
Affiliations: Centro de Estudos de Ciência Animal (CECA), ICETA-UP, Campus Agrário de Vairão, 4480 Vila do Conde, and Departamento de Zoologia-Antropologia, Faculdade de Ciências, Universidade do Porto, Praça Gomes Teixeira, 4050 Porto, Portugal.
Publication date: August 2000