Results 311 to 320 of about 855,866 (324)
Some of the next articles are maybe not open access.
A Phylogenetic Analysis of Aquifex pyrophilus
Systematic and Applied Microbiology, 1992The 16S rRNA of the bacterion Aquifex pyrophilus, a microaerophilic, oxygen-reducing hyperthermophile, has been sequenced directly from the the PCR amplified gene. Phylogenetic analyses show the Aq. pyrophilus lineage to be probably the deepest (earliest) in the (eu)bacterial tree.
Siegfried Burggraf+3 more
openaire +3 more sources
Phylogenetic analysis ofUlmaceae
Plant Systematics and Evolution, 1996A phylogenetic analysis of theUlmaceae, Cannabaceae, Barbeyaceae, andBroussonetia of theMoraceae produced nine equally parsimonious trees with 127 steps. TheUlmoideae (Ulmaceae, sensuGrudzinskaya) are a monophyletic group and distinct from theCeltidoideae. The genusAmpelocera occupies an isolated taxonomic position among the celtidoids.
Michael S. Zavada, Muyeol Kim
openaire +2 more sources
The marsupial placenta: A phylogenetic analysis
Journal of Experimental Zoology Part A: Comparative Experimental Biology, 2003AbstractThe structure, physiology, and endocrinology of the yolk sac placenta of different marsupial groups is compared and phylogenetically analyzed to provide information on placental characters in the marsupial stem species. We conclude that the marsupial stem species possessed a functional yolk sac placenta.
Claudia Freyer+2 more
openaire +3 more sources
Phylogenetic analysis of twinning in Callitrichinae
American Journal of Primatology, 2000The callitrichines are known for twinning and for a communal rearing system in which all or most group members help care for the offspring. The origin of twinning has been the subject of much speculation. In this study predictions from earlier hypotheses are tested on the basis of two alternative phylogenetic trees.
Birgitta S. Tullberg, Malin Ah-King
openaire +3 more sources
Combining data in phylogenetic analysis
Trends in Ecology & Evolution, 1996Systematists have access to multiple sources of character information in phylogenetic analysis. For example, it is not unusual to have nucleotide sequences from several different genes, or to have molecular and morphological data. How should diverse data be analyzed in phylogenetic analysis?
Clifford W. Cunningham+2 more
openaire +3 more sources
Phylogenetic analysis of anthropoid relationships
Journal of Human Evolution, 1998The relationships of anthropoids to other primates are currently debated, as are the relationships among early fossil anthropoids and crown anthropoids. To resolve these issues, data on 291 morphological characters were collected for 57 taxa of living and fossil primates and analyzed using PAUP and MacClade.
Blythe A. Williams+3 more
openaire +3 more sources
Phylogenetic Analysis of Pathogens
2011Publisher Summary This chapter introduces the important facets of the topic of producing phylogenetic trees, and the direct relevance to the study of infectious organisms' transmission. It is clearly important to be able to reconstruct the phylogeny, both for a group of species and also for the individuals within those species.
openaire +2 more sources
2014
The chapter briefly discusses the principles of phylogenetic analysis. The phylogenetic tree and its various parts are explained. The steps involved in the construction of a phylogenetic tree are briefly reviewed. Some online tools are mentioned that users can employ to reconstruct the phylogenetic tree of their desired set of sequences.
openaire +2 more sources
The chapter briefly discusses the principles of phylogenetic analysis. The phylogenetic tree and its various parts are explained. The steps involved in the construction of a phylogenetic tree are briefly reviewed. Some online tools are mentioned that users can employ to reconstruct the phylogenetic tree of their desired set of sequences.
openaire +2 more sources
Phylogenetic Analysis of Geminiviruses
Members of the family Geminiviridae have single-stranded (ss), circular DNA genomes that are encapsidated into non-enveloped quasi-icosahedral twinned (geminate) particles, causing yield losses in several economically important crops worldwide. Sequence-based approaches used for molecular characterization of Geminiviridae genomes, associated with ...openaire +2 more sources
Phylogenetic Analysis of Poliovirus Sequences
2016Comparative genomic sequencing is a major surveillance tool in the Polio Laboratory Network. Due to the rapid evolution of polioviruses (~1 % per year), pathways of virus transmission can be reconstructed from the pathways of genomic evolution. Here, we describe three main phylogenetic methods; estimation of genetic distances, reconstruction of a ...
openaire +3 more sources