Results 301 to 310 of about 2,847,669 (316)
Some of the next articles are maybe not open access.
Molecular sequence data of Thecaphora frezii affecting peanut crops in Argentina
European Journal of Plant Pathology, 2013In Argentina, Thecaphora frezii is the causal agent of peanut smut, causing severe yield losses in peanut growing areas. In this work sequence data of the large ribosomal subunit (28S rDNA) of four T. frezii specimens from different production regions are provided. A fragment of about 650 bp was amplified by PCR from each of the isolates analyzed.
A. Marinelli +5 more
openaire +2 more sources
Reconstruction of molecular phylogeny of extant hominoids from DNA sequence data
American Journal of Physical Anthropology, 1991AbstractEvolutionary distance matrices of the extant hominoids are computed from DNA sequence data, and hominoid DNA phylogenies are reconstructed by applying the neighbor‐joining method to these distance matrices. The chimpanzee is clustered with the human in most of the phylogenetic trees thus obtained.
openaire +3 more sources
Molecular Systematics of the Trilliaceae sensu lato as Inferred from rbcL Sequence Data
Molecular Phylogenetics and Evolution, 1995In this paper, we examine the phylogenetic affinities of Trilliaceae sensu lato. DNA sequences of the rbcL gene were analyzed for 8 species from Trilliaceae sensu lato (Trillium kamtschaticum, T. sessile, Daiswa polyphylla, Kinugasa japonica, Paris tetraphylla, Scoliopus bigelovii, S.
Hidetoshi Kato +3 more
openaire +3 more sources
A method for molecular phylogeny construction by direct use of nucleotide sequence data
Journal of Molecular Evolution, 1990A method for molecular phylogeny construction is newly developed. The method, called the stepwise ancestral sequence method, estimates molecular phylogenetic trees and ancestral sequences simultaneously on the basis of parsimony and sequence homology. For simplicity the emphasis is placed more on parsimony than on sequence homology in the present study,
openaire +3 more sources
The role of internal node sequences and the molecular clock in the analysis of serially-sampled data
International Journal of Bioinformatics Research and Applications, 2008Algorithms that infer phylogenetic relationships between serially-sampled sequences have been developed in recent years to assist in the analysis of rapidly-evolving human pathogens. Our study consisted of evaluating seven relevant methods using empirical as well as simulated data sets.
Timothy M. Collins +2 more
openaire +3 more sources
Bayesian Hypothesis Testing of Four-Taxon Topologies Using Molecular Sequence Data
Biometrics, 1996The reconstruction of phylogenetic trees from molecular sequences presents unusual problems for statistical inference. For example, three possible alternatives must be considered for four taxa when inferring the correct unrooted tree (referred to as a topology).
James A. Lake +2 more
openaire +3 more sources
Sequence Alignment, Parameter Sensitivity, and the Phylogenetic Analysis of Molecular Data
Systematic Biology, 1995The dependence of the results of molecular phylogenetic sequence analysis (both align ment and cladogram construction) on variation in analytical parameters is examined. Phylogenetic analyses of molecular sequence data are necessarily based on intrinsically unmeasurable param eters such as transition-transversion and alignment gap cost ratios (among ...
openaire +2 more sources
Molecular phylogeny of Diploschistes inferred from ITS sequence data
The Lichenologist, 2003AbstractThe phylogeny of the genus Diploschistes was investigated using nucleotide sequences of the nuclear ITS rDNA region (ITS1, ITS2 and 5.8S rDNA). Sequences of 22 Diploschistes species were aligned to those of six other species of Thelotremataceae, Graphis scripta and Aspicilia cinerea, with the last used as an outgroup. The alignment was analysed
María P. Martín +2 more
openaire +2 more sources
Molecular Phylogeny of the Arenaviruses and Guide to Published Sequence Data
1993The arenaviruses are primarily viruses of rodents, although a minority of them cause serious disease in humans. They were originally grouped together on the basis of their appearance in the electron microscope (Dalton et al.,1968; Murphy and Whitfield, 1975) and serological cross-reactivity in complement fixation and immunofluorescence tests (Rowe et ...
openaire +2 more sources
Molecular sequence data resolves basal divergences within Simuliidae (Diptera)
Systematic Entomology, 2000SummaryBasal divergences within Simuliidae are inferred from portions of the large nuclear ribosomal subunit (28S), elongation factor‐one alpha (EF‐1α), dopa decarboxylase (DDC), phosphoenolpyruvate carboxykinase (PEPCK), the small mitochondrial ribosomal subunit (12S) and subunit two of NADH dehydrogenase (ND2).
openaire +2 more sources