The neighbor-joining method: a new method for reconstructing phylogenetic trees.
Naruya Saitou,Masatoshi Nei +1 more
TLDR
The neighbor-joining method and Sattath and Tversky's method are shown to be generally better than the other methods for reconstructing phylogenetic trees from evolutionary distance data.Abstract:
A new method called the neighbor-joining method is proposed for reconstructing phylogenetic trees from evolutionary distance data. The principle of this method is to find pairs of operational taxonomic units (OTUs [= neighbors]) that minimize the total branch length at each stage of clustering of OTUs starting with a starlike tree. The branch lengths as well as the topology of a parsimonious tree can quickly be obtained by using this method. Using computer simulation, we studied the efficiency of this method in obtaining the correct unrooted tree in comparison with that of five other tree-making methods: the unweighted pair group method of analysis, Farris's method, Sattath and Tversky's method, Li's method, and Tateno et al.'s modified Farris method. The new, neighbor-joining method and Sattath and Tversky's method are shown to be generally better than the other methods.read more
Citations
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Isolation of Vibrio alginolyticus and Vibrio splendidus from Aquacultured Carpet Shell Clam (Ruditapes decussatus) Larvae Associated with Mass Mortalities
TL;DR: This is the fist time that these bacterial species have been associated with larval and juvenile carpet shell clam mortality and both bacterial strains were identified by morphological and biochemical techniques and also by PCR and sequencing of a conserved region of the 16S rRNA gene.
Journal ArticleDOI
Simian immunodeficiency virus replicates to high levels in sooty mangabeys without inducing disease.
Marie-Anne Rey-Cuille,Jean-Luc Berthier,Marie-Claude Bomsel-Demontoy,Yves Chaduc,Luc Montagnier,Ara G. Hovanessian,Lisa A. Chakrabarti +6 more
TL;DR: The data indicated that SIVsmFr replicated at a high rate in mangabeys, despite the nonpathogenic character of infection in this host, and the lack of pathogenicity of Sivsm for its natural host cannot be explained by limited viral replication or by tight containment of viral production.
Journal ArticleDOI
Genes involved in arsenic transformation and resistance associated with different levels of arsenic-contaminated soils.
TL;DR: Soils with long-term arsenic contamination may result in the evolution of highly diverse arsenite-resistant bacteria and such diversity was probably caused in part by horizontal gene transfer events.
Journal ArticleDOI
Evaluation of the efficacy of a bacterial consortium for the removal of color, reduction of heavy metals, and toxicity from textile dye effluent.
TL;DR: Cytotoxicity, genotoxicity and phytotoxicity studies carried out before and after decolorization of the textile effluent revealed the nontoxic nature of the biotreated sample.
Journal ArticleDOI
A case of transfusion-transmitted hepatitis E caused by blood from a donor infected with hepatitis E virus via zoonotic food-borne route.
Keiji Matsubayashi,Jong-Hon Kang,Hidekatsu Sakata,Kazuaki Takahashi,Motohiro Shindo,Masaru Kato,Shinichiro Sato,Toshiaki Kato,Hiroyuki Nishimori,Kunihiko Tsuji,Hiroyuki Maguchi,Junichi Yoshida,Hiroshi Maekubo,Shunji Mishiro,Hisami Ikeda +14 more
TL;DR: Five cases of transfusion transmission of hepatitis’E virus (HEV) have been reported so far, but the infection routes of the causative donors remain unclear and the progress of virus markers in the entire course of HEV infection has not been well documented.
References
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Book
Molecular Evolutionary Genetics
TL;DR: Recent developments of statistical methods in molecular phylogenetics are reviewed and it is shown that the mathematical foundations of these methods are not well established, but computer simulations and empirical data indicate that currently used methods produce reasonably good phylogenetic trees when a sufficiently large number of nucleotides or amino acids are used.
Book
Principles of numerical taxonomy
Robert R. Sokal,P.H.A. Sneath +1 more
TL;DR: The authors continued the story of psychology with added research and enhanced content from the most dynamic areas of the field, such as cognition, gender and diversity studies, neuroscience and more, while at the same time using the most effective teaching approaches and learning tools.