Results 271 to 280 of about 3,445,033 (308)

Molecular Phylogeny of the Animal Kingdom

Science, 1988
A rapid sequencing method for ribosomal RNA was applied to the resolution of evolutionary relationships among Metazoa. Representatives of 22 classes in 10 animal phyla were used to infer phylogenetic relationships, based on evolutionary distances determined from pairwise comparisons of the 18 S ribosomal RNA ...
K G, Field, G J, Olsen, D J, Lane, S J, Giovannoni, M T, Ghiselin, E C, Raff, N R, Pace, R A, Raff   +7 more
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A Molecular Phylogeny of the Human Schistosomes

Molecular Phylogenetics and Evolution, 1995
Members of the genus Schistosoma are generally grouped on the basis of egg morphology, intermediate host specificity, and geographic origin. We have tested hypotheses based on these groupings by phylogenetic analysis of nuclear ribosomal (ITS2) and mitochondrial (COI) nucleotide sequences.
Bowles, J, Blair, D, McManus, DP
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Molecular Phylogeny of the Arenaviruses

2002
Molecular approaches to the identification of viruses and the delineation of relationships among them has emerged as an important tool in virology only within the past 10–15 years. The rapidity and precision with which virus genetic sequences can now be acquired and the development of sophisticated methods for the phylogenetic analysis of this new ...
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A Molecular Phylogeny of Costaceae (Zingiberales)

Molecular Phylogenetics and Evolution, 2001
The phylogenetic relationships of Costaceae, a tropical monocotyledonous family sister to the gingers (Zingiberaceae), were investigated with a combination of two chloroplast loci (the trnL-F locus, including the trnL intron, the 3'trnL exon, and the trnL-F intergenic spacer, and the trnK locus, including the trnK intron and the matK coding region) and
C D, Specht, W J, Kress, D W, Stevenson, R, DeSalle   +3 more
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Statistical tests of molecular phylogenies.

Methods in enzymology, 1990
This chapter provides a summary of methods for testing the significance of inferred phylogenies. In terms of parsimony a nucleotide site is informative (useful) for choosing among the three trees only if it is in the same state in two of the four species and in another state in the other two species.
Li, W.-H., Gouy, Manolo
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A molecular phylogeny of Pythium insidiosum

Mycological Research, 2003
Sequence analysis of the ribosomal DNA internal transcribed spacers (ITS) was used to establish phylogenetic relationships among 23 isolates of Pythium insidiosum, the etiological agent of pythiosis in mammals. The isolates were divided into three distinct clades that exhibited significant geographic isolation. Clade I consisted of isolates from North,
Andrew M, Schurko, Leonel, Mendoza, C André, Lévesque, Nicole L, Désaulniers, Arthur W A M, de Cock, Glen R, Klassen   +5 more
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Molecular phylogeny of Arthrotardigrada (Tardigrada)

Molecular Phylogenetics and Evolution, 2010
Tardigrades are microscopic ecdysozoans with a worldwide distribution covering marine, limnic and terrestrial habitats. They are regarded as a neglected phylum with regard to studies of their phylogeny. During the last decade molecular data have been included in the investigation of tardigrades.
Jørgensen, Aslak, Faurby, Søren, Hansen, Jesper Guldberg, Møbjerg, Nadja, Kristensen, Reinhardt Møbjerg   +4 more
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THE MOLECULAR PHYLOGENY AND SYSTEMATICS OF THE ACTINOMYCETES

Annual Review of Microbiology, 1994
Sequences of 16S ribosomal RNA have provided actinomycetologists with a phylogenetic tree that allows the investigation of the evolution of actinomycetes and also provides a basis for classification. The origin of actinomycetes and, except for bifidobacteria, the order by which the main sublines evolved, cannot yet be determined with certainty. However,
T M, Embley, E, Stackebrandt
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Molecular phylogeny of Paraonidae (Annelida)

Molecular Phylogenetics and Evolution, 2019
A molecular phylogeny of the family Paraonidae was reconstructed on the basis of 16S rDNA, COI and 18S rDNA sequences obtained from 66 individuals belonging to 38 nominal species and subspecies. In agreement with previous findings, Paraonidae represent a monophyletic group, closely related to Sternaspidae.
Langeneck, Joachim, Barbieri, Michele, Maltagliati, Ferruccio, Castelli, Alberto   +3 more
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Congruence of Morphological and Molecular Phylogenies

Acta Biotheoretica, 2007
When phylogenetic trees constructed from morphological and molecular evidence disagree (i.e. are incongruent) it has been suggested that the differences are spurious or that the molecular results should be preferred a priori. Comparing trees can increase confidence (congruence), or demonstrate that at least one tree is incorrect (incongruence ...
Pisani, Davide, Benton, MJ, Wilkinson, M
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