Genetic characterization of native and invasive Plagioscion squamosissimus (Perciformes, Sciaenidae) populations in Brazilian hydrographic basins

Abstract

ABSTRACT. The genetic diversity of invasive and native populations of Plagioscion squamosissimus (Heckel, 1840) from the Paraná, Parnaiba and Araguaia-Tocantins river basins was assessed by using Random Amplified Polymorphic DNA (RAPD) markers. Genetic data confirmed the hypothesis of low genetic variability within and among P. squamosissimus populations introduced in the upper Paraná River basin, and indicated that they likely originated from a common ancestor. Moreover, the data demonstrated that, in agreement with available historical records, the P. squamosissimus populations established in the Paraná River basin were derived from a population native to the Parnaíba River basin. The genetic 14315 Genetic variability in P. squamosissimus ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 14 (4): 14314-14324 (2015) data presented here are of potential future application for the management of the invasive P. squamosissimus populations and for the preservation of the genetic legacy of native fish.

Genetic relationships of Plagioscion squamosissimus (Perciformes, Sciaenidae) from five Neotropical river basins evaluated using mitochondrial atpase6/8 gene sequences

“…P. squamosissimus successfully colonised all the habitats of the Paraná River basin (Agostinho et al, ), despite the low genetic diversity rates observed in the current analyses and by Panarari‐Antunes et al . (, ).…”

“…In the case of introduced P. squamosissimus populations, others factors may also be related to its successful invasion. P. squamosissimus successfully colonised all the habitats of the Paraná River basin (Agostinho et al, 2008), despite the low genetic diversity rates observed in the current analyses and by Panarari-Antunes et al (2012, 2015.…”

“…Molecular studies based on random amplification of polymorphic DNA (RAPD) and D‐loop markers have recently demonstrated that the populations of P. squamosissimus that were introduced in the Paraná River basin originated from the native populations of the Parnaíba River basin (Panarari‐Antunes et al, , ). The origin of the introduced populations in the São Francisco River, however, remains unknown.…”

Metacercariae of Austrodiplostomum compactum (Trematoda, Diplostomidae) in non-native fish species in Brazil: a possible explanation for the high rate of parasitic infection

“…Plagioscion squamosissimus from the Upper Paraná River Basin shares a single haplotype with populations from the Parnaíba River, revealing that P. squamosissimus offspring from the Parnaíba River Basin occur only in the Paraná River Basin and have low kinship with the populations of the Amazon River Basin (Panarari-Antunes et al 2012). According to Panarari-Antunes et al (2012, 2015 and Diamante et al (2017), the non-native populations of P. squamosissimus from the Upper Paraná River Basin and the native population of the Parnaíba River, have low polymorphism and high genetic similarity. These populations of P. squamosissimus, however, differ genetically from the Araguaia-Tocantins native population, which is the most basal and polymorphic population.…”