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| Silva,Fernanda Britto da; Muschner,Valéria C.; Bonatto,Sandro L.. |
| The phylum Placozoa, represented by its single species Trichoplax adhaerens, has always been considered one of the most basal animal clades due to its low morphological complexity. However, despite its importance, the phylogenetic position of the Placozoa remains uncertain, as does the relationships between the basal metazoans. We sequenced the nearly complete large subunit (LSU) of the T. adhaerens rRNA gene together with the small subunit (SSU) rRNA and used several methods to infer the phylogenetic position of Placozoa and the relationships between the basal animal phyla. The phylogenetic trees obtained from the LSU, SSU and SSU + LSU datasets support monophyly of all basal metazoan phyla, except the Porifera. However, the relationships between all... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trichoplax adhaerens; Placozoa; Animal basal phylogeny; Metazoa relationship; RRNA genes. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000100022 |
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| Muschner,Valéria C.; Zamberlan,Priscilla M.; Bonatto,Sandro L.; Freitas,Loreta B.. |
| As part of a long-term investigation on the evolution of Passiflora L., we investigated the divergence ages of the genus and diversification of its subgenera, relating them with biogeographical and/or historical events, and other characteristics of this taxon. The main aim of the present work was to evaluate the biogeographic distribution of this genus to better understand its evolutionary history. This is the first time that representatives from South American and Old World Passifloraceae genera have been studied as a group comprising a total of 106 widely distributed species, with representative samples of the four suggested subgenera. Seven DNA regions were studied, comprising 7,431 nucleotides from plastidial, mitochondrial and nuclear genomes.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biogeography; Molecular phylogenetics analysis; Passionflowers; Plant evolution; Taxonomic classification. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000600019 |
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