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Registros recuperados: 25 | |
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Artois, T.J.; Schockaert, E.R.. |
The taxonomy of the genus <i>Polycystis</i> Koelliker, 1845 <i>sensu</i> Schockaert & Karling, 1975 is discussed. Character analysis reveals the monophyletic state of the three species groups these authors defined within it. As no synapomorphies for the three groups can be found, the genus is split in three genera: <i>Polycystis</i> Koelliker, 1845, <i>Macrorhynchus</i> Graff, 1882 and <i>Paulodora Marcus</i>, 1948. The systematic position of <i>Macrorhynchus yaganus</i> (Marcus, 1954) Evdonin, 1977 is also discussed, resulting in the erection of the new genus <i>Marcusia</i> gen. n. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phylogenetics; Taxonomy; Eukalyptorhynchia; Plathelminthes; Polycystididae; Polycystis. |
Ano: 1998 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6815 |
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Chachá,Silvana Gama Florencio; Gomes-Gouvêa,Michele Soares; Malta,Fernanda de Mello; Ferreira,Sandro da Costa; Villanova,Márcia Guimarães; Souza,Fernanda Fernandes; Teixeira,Andreza Correa; Passos,Afonso Dinis da Costa; Pinho,João Renato Rebello; Martinelli,Ana de Lourdes Candolo. |
Abstract Hepatitis B virus (HBV) is distributed worldwide, with geographical variations regarding prevalence of the different genotypes. The aim of this study was to determine the HBV genotypes and subgenotypes circulating in Southeast Brazil and compare the genetic sequences found with HBV sequences previously described in the world. Sequences from 166 chronic HBV carriers were analyzed using the fragment constituted by 1306 base pairs comprising surface and polymerase regions of the HBV genome. The sequences obtained were submitted to phylogenetic analysis. HBV subgenotypes A1, A2, D1-D4, F2a, and F4 were found. HBV genotype D was the most frequent, found in 99 patients (58.4%). Within this group, subgenotype D3 was the most prevalent, in 73 patients... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis B virus; Genotype; Phylogenetics; Intra-familial transmission. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000400424 |
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Registros recuperados: 25 | |
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