“…Significantly increased taxon sampling within the Enoplida resulted in a well-supported, robust phylogenetic topology of this group, although the placement of certain clades was not fully resolved. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…CONCLUSIONS/SIGNIFICANCE: Our data provide strong evidence that Tbr is only a phenotypic variant of Tbb; while relevant from a medical perspective, Tbr is not a reproductively isolated taxon. The wide distribution of the SRA gene across diverse trypanosome genetic backgrounds suggests that a large amount of genetic diversity is potentially available with which human-infective trypanosomes may respond to selective forces such as those exerted by drugs.…”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Using molecular tools, it was also found as a phylogenetic taxon associated with date palm roots. These roots were associated with nine phylogenetic taxa, among them eight from Glomus group A, but the majority could not be assigned to known morphospecies or to environmental sequences in public databases. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…These characters were polarized using Berthella canariensis as the outgroup taxon and the type species of several other genera identified from recent publications. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Triggers can be linked to evolutionary events and plausibly explained by the “taxon cycle” theory. Fairly little is still known about certain feeding preferences, including granivory and ants, as well as unique life history strategies, such as ectoparasitism and predation on higher taxa. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Previous phylogenies, mostly inferred with one gene, are in conflict for several taxon positions. Therefore, obtaining a resolved picture of relationships among genera and species of this tribe has been a challenging task. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…The dark kangaroo mouse, M. megacephalus, is distributed throughout the Great Basin and our principal aims were to formulate phylogenetic hypotheses for this taxon and make phylogeographical comparisons with its congener. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…As predicted, the intensity of selection at the S-locus was higher in the taxon with more recent S-locus diversification. This is the first confirmation by statistical test of differing selection intensities among self-incompatibility alleles from different populations or species.…”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…This has impeded phylogenetic studies on this taxon, as well as the evolution of the arthropod mitochondrial genome. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…The presence of a distinct troodontid taxon in the Kaiparowits Formation supports the hypothesis that late Campanian dinosaurs of the Western Interior Basin exhibited restricted geographic ranges and suggests that the taxonomic diversity of Late Cretaceous troodontids from North America is currently underestimated. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…In the 10-15 cm metagenome, ANME of the ANME-1 clade, were identified as the most abundant methanotrophic taxon with 8.6% of the reads. Searches for particulate methane monooxygenase (pmoA) and methyl-coenzyme M reductase (mcrA), marker genes for aerobic and anaerobic oxidation of methane respectively, identified pmoA in the 0-4 cm metagenome as Methylococcaceae related. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Background: Contaminants have been implicated in declines of amphibians, a taxon with vital systems similar to those of humans. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Adult lenses contain, in addition, the taxon-specific μ-crystallin. The proportions of these vary with the age of the lens tissue due to age related insolubilization as well as changes in the synthesis patterns. …”
Enlace del recurso
Enlace del recurso

“…The analytical approaches included the commonly used Kimura two-parameter (K2P) inter-species distance plus four more stringent measures of taxon distinctiveness, (1) Rosenberg’s reciprocal monophyly, (P(AB)),1 (2) Rodrigo’s (P(randomly distinct)),2 (3) genealogical sorting index, (gsi),3 and (4) General mixed Yule-coalescent (GMYC).4,5 For both insect datasets, a comparative analysis of the methods revealed that the K2P distance method does not capture the same level of species distinctiveness revealed by the other three measures; in B. tabaci there are more distinct groups than previously identified using the K2P distances and for L. dipsar far less variation is apparent within the predefined subspecies. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…CONCLUSIONS: This study provides the first evidence for numerous intron gains in the ancestor of placental mammals and demonstrates that adequate taxon sampling is crucial for reconstructing intron evolution. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…RESULTS: We assembled the richest taxon sampling of Enterobacteriaceae to date (50 taxa, 69 orthologous genes with no missing data) and analyzed both nucleic and amino acid data sets using several probabilistic methods. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…To our knowledge, this is the most extensive analysis of the geochemical habitat of any high-level microbial taxon and the first application of a C-SVM to microbial ecology.…”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Cobalamin auxotrophy, cellulose degradation and As(III)-oxidation are 3 crucial functions in this ecosystem, and a previous meta- and proteo-genomic work attributed each function to only one taxon. Here, we demonstrate that other members of this community can also assume these functions, thus increasing the overall community robustness. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Some authors claim that this taxon includes a group of cryptic species. In order to evaluate possible targets of sexual selection, it is necessary to analyze ethological aspects of male courtship and identify particular steps that strongly influence mating success. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…The sea urchin pluteus larva is dramatically different from basal echinoderm larval types, which include the auricularia-type larva of its sister taxon, the sea cucumbers, and the sea star bipinnaria larva. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso