Molecular phylogeny of penaeid shrimps inferred from two mitochondrial markers.
Penaeid shrimps are an important resource in crustacean fisheries, representing more than the half of the gross production of shrimp worldwide. In the present study, we used a sample of wide-ranging diversity (41 shrimp species) and two mitochondrial markers (758 bp) to clarify the evolutionary relationships among Penaeidae genera. Three different methodologies of tree reconstruction were employed in the study: maximum likelihood, neighbor joining and Bayesian analysis. Our results suggest that the old Penaeus genus is monophyletic and that the inclusion of the Solenocera genus within the Penaeidae family remains uncertain. With respect to Metapenaeopsis monophyly, species of this genus appeared clustered, but with a nonsignificant bootstrap value. These results elucidate some features of the unclear evolution of Penaeidae and may contribute to the taxonomic characterization of this family.
Laboratório de Biodiversidade Molecular, Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
Carolina M
CM
Voloch
Pablo R
PR
Freire
Claudia A M
CA
Russo
D000465:Algorithms; D000818:Animals; D001499:Bayes Theorem; D042967:Electron Transport Complex I / Q000235:genetics; D019143:Evolution, Molecular; D005819:Genetic Markers; D014644:Genetic Variation / Q000235:genetics*; D016013:Likelihood Functions; D008928:Mitochondria / Q000235:genetics*; D033561:Penaeidae / Q000145:classification / Q000235:genetics*; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D016415:Sequence Alignment / Q000379:methods
D005819:Genetic Markers; D012336:RNA, Ribosomal, 16S; D042967:Electron Transport Complex I