The U.S. Endangered Species Act (ESA) allows listing of subspecies and other groupings below the rank of species. This provides the U.S. Fish and Wildlife Service and the National Marine Fisheries Service with a means to target the most critical unit in need of conservation. Although roughly one-quarter of listed taxa are subspecies, these management agencies are hindered by uncertainties about...

Campylobacter fetus subsp. testudinum has been isolated from reptiles and humans. This Campylobacter subspecies is genetically distinct from other C. fetus subspecies. Here, we present the first whole-genome sequence for this C. fetus subspecies.

five subspecies of the persian jird, meriones persicus, were reported from iran. these subspecies were described based on morphological characters and coat colors of few specimens. the question of the validity of these subspecies and their geographic distribution is raised. in this study, we combined genetic markers (cox1, cytb and irbp genes), morphometric (external and skull measurments), mor...

Alkaloid contents (sparteine accounted for more than 80%) of four subspecies of Chamaecytisus proliferus (tagasaste) were higher in spring cuts than in autumn cuts, and they were (g kgÿ1 DM for spring and autumn cuts, respectively) 2.9 and 1.6 for palmensis subspecies, 7.3 and 2.9 for canariae, 11.3 and 7.9 for meridionales and 2.7 for the autumn cut of calderae. Voluntary intake was determined...

Genetic differences within and among naturally occurring populations of wild turkeys (Meleagris gallopavo) were characterized across five subspecies' historical ranges using amplified fragment length polymorphism (AFLP) analysis, microsatellite loci and mitochondrial control region sequencing. Current subspecific designations based on morphological traits were generally supported by these analy...

Bembidion (Peryphanes) sanatum iwanai ssp. n. is described from the solfatara fields of Mendeleev Volcano (Kuril Archipelago: Kunashir Island). It slightly differs nominative subspecies by body proportions, as well relatively narrow external intervals elytra and their microsculpture, yet showing stable distinctions in endophallus armature (basal part lamina 1 rounded, vs. angular subspecies) sp...

Subspecies have been considered artificial subdivisions of species, pattern classes, or incipient species. However, with more data and modern phylogenetic techniques, some subspecies may be found to represent true species. Mitochondrial DNA analysis of the polytypic snake, Elaphe obsoleta, yields well-supported clades that do not conform to any of the currently accepted subspecies. Complete nuc...

background: based on biochemical properties, enterobacter cloacae represents a large complex of at least 13 variant species, subspecies, and genotypes that progressively identified as the most species causing hospital-acquired infections. the aim of this study was to determine the relevance between phylogenetically related strains within the e. cloacae complex and the frequency of urinary tract...

Colleagues disagree with statements in our discussion (Cronin et al. 2015) regarding subspecies taxonomy of wolves (Canis lupus) in southeast Alaska (Weckworth et al. 2015) and the southwest United States (Fredrickson et al. 2015). Following the presentation of results of single nucleotide polymorphism (SNP) variation in several populations of wolves in North America, we discussed other genetic...