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Can DNA barcoding accurately discriminate megadiverse Neotropical freshwater fish fauna?
This study is the first to examine a large number of freshwater fish species from the Neotropical area, including alarge number of closely related species, and confirmed the efficacy of the barcoding methodology to identify a recently radiated, megadiverse fauna.
Phylogenetic relationships within the speciose family Characidae (Teleostei: Ostariophysi: Characiformes) based on multilocus analysis and extensive ingroup sampling
A monophyletic assemblage strongly supported in all the authors' phylogenetic analysis is herein defined as the Characidae, which includes the characiform species lacking a supraorbital bone and with a derived position of the emergence of the hyoid artery from the anterior ceratohyal.
Ribosomal and Mitochondrial DNA Analyses of Xiphinema americanum-Group Populations.
Analyses of 18S rDNA and mtDNA sequences underpin the classical taxonomic issues of the X. americanum-group and cast doubt on the degree of speciation within the group.
DNA barcodes discriminate freshwater fishes from the Paraíba do Sul River Basin, São Paulo, Brazil
The results demonstrate the utility of barcoding to identify the fauna from this basin, contribute to an enhanced understanding of the differentiation among species, and to help flag the presence of overlooked species.
Molecular cytogenetic analysis of heterochromatin in the chromosomes of tilapia, Oreochromis niloticus (Teleostei: Cichlidae)
The structure of the heterochromatic bands in mitotic chromosomes of the important tropical aquaculture species of tilapia, Oreochromis niloticus, was investigated by the combination of the C-banding
Molecular and cytogenetic analysis of the telomeric (TTAGGG)n repetitive sequences in the Nile tilapia, Oreochromis niloticus (Teleostei: Cichlidae)
Analysis of chromosomes in Oreochromis niloticus supports the hypothesis that chromosome 1, which is significantly larger than all the other chromosomes in the karyotype, was produced by the fusion of three chromosomes and explain the overall reduction of chromosomal number from the ancestral teleost karyotypes observed in tilapia.