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Molecular characterization of Moenkhausia (Pisces: Characiformes) populations with different lateral line developmental levels Anais da ABC (AABC)
MOTA,THAÍS F.M.; FABRIN,THOMAZ M.C.; DEPRÁ,GABRIEL C.; GASQUES,LUCIANO S.; OLIVEIRA,ALESSANDRA V. DE; PAVANELLI,CARLA S.; PRIOLI,SÔNIA M.A.P.; PRIOLI,ALBERTO J..
ABSTRACT The genera Hemigrammus and Moenkhausia have been traditionally diagnosed mainly by the former having lateral line completely pored whereas the latter having a lateral line with a few pored scales. Those features have been used to diagnose species of both genera in the upper Paraná River floodplain. Specimens with the diagnostic features of Moenkhausia bonita, collected in the upper Paraná River floodplain, exhibited different developmental levels of the lateral line, making it difficult to distinguish them from specimens of Hemigrammus sp. We analyzed the gene encoding cytochrome C oxidase I (COI) and intron 1 of the nuclear gene S7 to investigate the genetic similarities between the called Hemigrammus marginatus and M. bonita and to confirm their...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cytochrome C oxidase; Delimitation of species; DNA barcode; Hemigrammus; Intron 1 of the nuclear gene S7; Paraná River.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602815
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Molecular characterization of the invasive aquatic macrophyte Hydrilla verticillata (Hydrocharitaceae) in Brazil Anais da ABC (AABC)
LUCIO,LÉIA CAROLINA; THOMAZ,SIDINEI M.; PRIOLI,SÔNIA MARIA A.P.; BONI,TALGE A.; OLIVEIRA,ALESSANDRA V. DE; PRIOLI,ALBERTO JOSÉ.
Abstract: Invasive populations of macrophytes are widely distributed and have been successfully introduced and established in freshwater habitats. Hydrilla verticillata was first recorded in 2005 in the Upper Paraná River floodplain and in 2007 at the Itaipu Reservoir (Brazil-Paraguay border, ca. 300 km downstream from its first record). However, its genetic variability within different sites in South America is unknown. We used nucleotide sequences corresponding to the trnL-trnF fragment cpDNA to genetically characterize populations of H. verticillata in different ecosystems of the Upper Paraná River basin. The results indicated an absence of genetic differentiation within and between populations of the basin, and even individuals collected 600 km apart...
Tipo: Info:eu-repo/semantics/article Palavras-chave: CpDNA; Genetic variability; TrnL-trnF; Upper Paraná River basin.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500623
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