Structure and genetic variability of golden mussel (Limnoperna fortunei) populations from Brazilian reservoirs

• DOI: 10.1002/ece3.4941
• Publication Date: 2019-02-11T03:10:51Z
• Authors: Pâmela Juliana Fu...; Claudete de Fatim...; Eduardo Augusto Ruas; Lucas Milanez Ben...; Angela Maria Urre...; Angela Rocio Pove...; Emerson Murari; Ed Christian Suzu...; Felipe Pinheiro d...; Nelson Mauricio L...
• Keywords: Fixation index; Genetic Variability; Freshwater bivalve

The golden mussel, Limnoperna fortunei a highly invasive species in Brazil, has generated productive, economical, and biological impacts. To evaluate genetic structure variability of L. populations present fish farms the reservoirs Canoas I (CANFF), Rosana (ROSFF), Capivara (CAPFF) (Paranapanema River, Paraná, Brazil), eight microsatellite loci were amplified. Five those resulted 38 alleles. observed heterozygosity (Ho) was lower than expected (He) all populations, with deviation from Hardy-Weinberg equilibrium (HWE). average value for inbreeding coefficient (Fis) positive significative populations. There higher within among them. fixation index (Fst) showed small these occurrence gene flow identified along lack recent bottleneck effect. clustering analysis yielded K = 2, similarity between three results demonstrate low suggest founding population greater (ROSFF). Our data point to possible dispersal aided by anthropic factors upstream direction. It concluded that presented unique pool Paranapanema flow.