Results 21 to 30 of about 334,920 (299)

CHARACTER ASSESSMENT, GENUS LEVEL BOUNDARIES, AND PHYLOGENETIC ANALYSES OF THE FAMILY RHACOPHORIDAE:: A REVIEW AND PRESENT DAY STATUS [PDF]

open access: yes, 2000
The first comprehensive phylogenetic analysis of the family Rhacophoridae was conducted by Liem (1970) scoring 81 species for 36 morphological characters. Channing (1989), in a reanalysis of Liem’s study, produced a phylogenetic hypothesis different from
Drewes, Robert C., Wilkinson, Jeffery A.
core   +2 more sources

A new species of Pseudochalcura (Hymenoptera, Eucharitidae), with a review of antennal morphology from a phylogenetic perspective [PDF]

open access: yes, 2009
Pseudochalcura alba Heraty & Heraty, sp. n. is described from Santiago del Estero and Catamarca provinces in northwestern Argentina. The male and female have long dorsal rami on all of the flagellomeres basal to the terminal segment, which is a unique ...
Heraty, Joanne M.   +2 more
core   +2 more sources

Observation of persistent flow of a Bose-Einstein condensate in a toroidal trap

open access: yes, 2007
We have observed the persistent flow of Bose-condensed atoms in a toroidal trap. The flow persists without decay for up to 10 s, limited only by experimental factors such as drift and trap lifetime.
Andersen, M. F.   +5 more
core   +1 more source

Characterization of Swedish Campylobacter coli clade 2 and clade 3 water isolates

open access: yesMicrobiologyOpen, 2018
AbstractCampylobacter jejuni and Campylobacter coli are important bacterial enteropathogens. Poultry is the best‐known reservoir for Campylobacter infection but natural bodies of water have also been shown to be important pathways for transmission. Campylobacter can survive in cold water but most of the studies have focused on C. jejuni only.
Anna Nilsson   +5 more
openaire   +4 more sources

A new species in the major malaria vector complex sheds light on reticulated species evolution [PDF]

open access: yes, 2019
Complexes of closely related species provide key insights into the rapid and independent evolution of adaptive traits. Here, we described and studied Anopheles fontenillei sp.n., a new species in the Anopheles gambiae complex that we recently discovered ...
Akone-Ella O.   +11 more
core   +1 more source

Protein O‐glycosylation in the Bacteroidota phylum

open access: yesFEBS Open Bio, EarlyView.
Species of the Bacteroidota phylum exhibit a unique O‐glycosylation system. It modifies noncytoplasmic proteins on a specific amino acid motif with a shared glycan core but a species‐specific outer glycan. A locus of multiple glycosyltransferases responsible for the synthesis of the outer glycan has been identified.
Lonneke Hoffmanns   +2 more
wiley   +1 more source

Phylogenies of atpD and recA support the small subunit rRNA-based classification of rhizobia [PDF]

open access: yes, 2001
The current classification of the rhizobia (root-nodule symbionts) assigns them to six genera. It is strongly influenced by the small subunit (16S, SSU) rRNA molecular phylogeny, but such single-gene phylogenies may not reflect the evolution of the ...
Gaunt, M.W.   +4 more
core   +1 more source

Genetic Recombination Events Between Sympatric Clade A and Clade C Lice in Africa [PDF]

open access: yesJournal of Medical Entomology, 2013
Human head and body lice have been classified into three phylogenetic clades (Clades A, B, and C) based on mitochondrial DNA. Based on nuclear markers (the 18S rRNA gene and the PM2 spacer), two genotypes of Clade A head and body lice, including one that is specifically African (Clade A2), have been described. In this study, we sequenced the PM2 spacer
Amina Boutellis   +2 more
openaire   +3 more sources

Characterization of the thermophilic xylanase Fsa02490Xyn from the hyperthermophile Fervidibacter sacchari belonging to glycoside hydrolase family 10

open access: yesFEBS Open Bio, EarlyView.
Fervidibacter sacchari is a member of the bacterial phylum Armatimonadota, only a few of which have been cultivated. It is a hyperthermophilic polysaccharide degradation specialist. We show that a secreted enzyme, Fsa02490Xyn, is an endoxylanase belonging to glycoside hydrolase family 10.
Nicole Torosian   +10 more
wiley   +1 more source

Following the rivers: historical reconstruction of California voles Microtus californicus (Rodentia: Cricetidae) in the deserts of eastern California [PDF]

open access: yes, 2016
The California vole, Microtus californicus, restricted to habitat patches where water is available nearly year-round, is a remnant of the mesic history of the southern Great Basin and Mojave deserts of eastern California.
Conroy, CJ   +5 more
core   +3 more sources

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