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Evolutionary analysis of apolipoprotein E by Maximum Likelihood and complex network methods Genet. Mol. Biol.
Benevides,Leandro de Jesus; Carvalho,Daniel Santana de; Andrade,Roberto Fernandes Silva; Bomfim,Gilberto Cafezeiro; Fernandes,Flora Maria de Campos.
Abstract Apolipoprotein E (apo E) is a human glycoprotein with 299 amino acids, and it is a major component of very low density lipoproteins (VLDL) and a group of high-density lipoproteins (HDL). Phylogenetic studies are important to clarify how various apo E proteins are related in groups of organisms and whether they evolved from a common ancestor. Here, we aimed at performing a phylogenetic study on apo E carrying organisms. We employed a classical and robust method, such as Maximum Likelihood (ML), and compared the results using a more recent approach based on complex networks. Thirty-two apo E amino acid sequences were downloaded from NCBI. A clear separation could be observed among three major groups: mammals, fish and amphibians. The results...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apolipoprotein E; Phylogeny; Complex network; Maximum Likelihood.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000400665
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Relationships of the haematophagous marine snail Colubraria (Rachiglossa: Colubrariidae), within the neogastropod phylogenetic framework ArchiMer
Oliverio, Marco; Modica, Maria Vittoria.
The gastropod genus Colubraria includes marine shallow-water species from tropical, subtropical, and temperate rocky coral environments. At least six species are known to feed on fish blood. Although there is general consensus in placing Colubraria in the Neogastropoda, the actual relationships and the systematic position of Colubraria and related genera are unknown. This is partly the consequence of the lack of a clear phylogenetic framework for the Neogastropoda. This study attempts to propose a phylogenetic framework for the Neogastropoda, by testing: (1) a preliminary phylogenetic arrangement for a large number of recognized neogastropod families; (2) the position of Colubraria within the neogastropods; and (3) the relationships of Colubraria within...
Tipo: Text Palavras-chave: Bayesian inference; Buccinoidea; Cancellarioidea; Conoidea; Maximum Likelihood; Muricoidea; Neogastropoda; Phylogeny; Radula; Systematics.
Ano: 2010 URL: https://archimer.ifremer.fr/doc/00207/31804/30216.pdf
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