scholarly journals New Molecular Data on Filaria and its Wolbachia from Red Howler Monkeys (Alouatta macconnelli) in French Guiana—A Preliminary Study

Pathogens ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 626
Author(s):  
Younes Laidoudi ◽  
Hacène Medkour ◽  
Anthony Levasseur ◽  
Bernard Davoust ◽  
Oleg Mediannikov
Keyword(s):  
French Guiana ◽  
Molecular Data ◽  
New World Monkeys ◽  
The Novel ◽  
Infection Rates ◽  
Howler Monkeys ◽  
Morphological Taxonomy ◽  
Preliminary Study ◽  
Red Howler Monkeys

Previous studies have reported filarial parasites of the genus Dipetalonema and Mansonella from French Guiana monkeys, based on morphological taxonomy. In this study, we screened blood samples from nine howler monkeys (Alouatta macconnelli) for the presence of filaria and Wolbachia DNA. The infection rates were 88.9% for filaria and 55.6% for wolbachiae. The molecular characterization, based on the 18S gene of filariids, revealed that A. macconnelli are infected with at least three species (Mansonella sp., Brugia sp. and an unidentified Onchocercidae species.). Since the 18S and cox1 generic primers are not very effective at resolving co-infections, we developed ITS genus-specific PCRs for Mansonella and Brugia genus. The results revealed coinfections in 75% of positives. The presence of Mansonella sp. and Brugia sp. was also confirmed by the 16S phylogenetic analysis of their associated Wolbachia. Mansonella sp., which close to the species from the subgenus Tetrapetalonema encountered in New World Monkeys, while Brugia sp. was identical to the strain circulating in French Guiana dogs. We propose a novel ITS1Brugia genus-specific qPCR. We applied it to screen for Brugia infection in howler monkeys and 66.7% were found to be positive. Our finding highlights the need for further studies to clarify the species diversity of neotropics monkeys by combining molecular and morphological features. The novel Brugia genus-specific qPCR assays could be an effective tool for the surveillance and characterization of this potential zoonosis.

Translocation of red howler monkeys (Alouatta seniculus) in French Guiana

2000 ◽  
Vol 93 (2) ◽  
pp. 247-253 ◽  
Author(s):  
Cécile Richard-Hansen ◽  
J.-Christophe Vié ◽  
Benoı̂t de Thoisy
Keyword(s):  
French Guiana ◽  
Alouatta Seniculus ◽  
Howler Monkeys ◽  
Red Howler Monkeys ◽  
Red Howler

scholarly journals Novel Gamma-1 Herpesviruses Identified in Free-Ranging New World Monkeys (Golden-Handed Tamarin [Saguinus midas], Squirrel Monkey [Saimiri sciureus], and White-Faced Saki [Pithecia pithecia]) in French Guiana

2003 ◽  
Vol 77 (16) ◽  
pp. 9099-9105 ◽  
Author(s):  
Benoit de Thoisy ◽  
Jean-François Pouliquen ◽  
Vincent Lacoste ◽  
Antoine Gessain ◽  
Mirdad Kazanji
Keyword(s):  
French Guiana ◽  
New World ◽  
Saimiri Sciureus ◽  
New World Monkeys ◽  
Barr Virus ◽  
Pithecia Pithecia ◽  
In The Wild ◽  
Epstein Barr ◽  
Free Ranging

ABSTRACT The recent finding of a novel Epstein-Barr virus-related lymphocryptovirus (CalHV-3) in a captive colony of common marmoset (Callithrix jacchus) in the United States modifies the view that the host range of lymphocryptovirus is restricted to humans and Old World primates. We investigated the presence of Epstein-Barr virus-related viruses in 79 samples of New World monkeys caught in the wild, including six species of the Cebidae family and one of the Callitrichidae, living in the rain forest of French Guiana. Using a degenerate consensus PCR method for the herpesvirus DNA polymerase gene, we identified three novel lymphocryptoviruses from golden-handed tamarin (Saguinus midas) of the Callitrichidae family and squirrel monkey (Saimiri sciureus) and white-faced saki (Pithecia pithecia) of the Cebidae family. With the CalHV-3 strain, these three novel viruses constitute a well-supported phylogenetic clade in the Lymphocryptovirus genus, which is clearly distinct from the lineage of Old World lymphocryptovirus, hosted by catarrhine monkeys and humans. In tamarins, the prevalence of the novel lymphocryptovirus was more than 50%, indicating that it circulates well in the wild population, perhaps due to specific ecoethological patterns such as confrontations and intergroup migration. The detection and partial molecular characterization of the polymerase gene of three novel Gamma-1-Herpesvirinae from New World monkeys caught in the wild clearly indicate that free-ranging populations of platyrrhine are natural hosts of lymphocryptoviruses. Further characterization of these novel viruses will provide new insight not only into the origin and evolution of Gammaherpesvirinae but also into their pathogenicity.

scholarly journals Cryptococcus rajasthanensis sp. nov., an anamorphic yeast species related to Cryptococcus laurentii, isolated from Rajasthan, India

2007 ◽  
Vol 57 (2) ◽  
pp. 414-418 ◽  
Author(s):  
Puja Saluja ◽  
G. S. Prasad
Keyword(s):  
Large Subunit ◽  
Its Region ◽  
Molecular Data ◽  
Lsu Rdna ◽  
Cryptococcus Laurentii ◽  
The Novel ◽  
D2 Domain ◽  
Its Regions ◽  
Anamorphic Yeast ◽  
Physiological Tests

Two novel anamorphic yeast strains (S-15LT and 3-C1) were isolated from the inflorescences of plants collected in two different towns in Rajasthan State, India. Sequencing of the D1/D2 domains of the large-subunit (LSU) rDNA and the internal transcribed spacer (ITS) regions suggested they are strains of the same species. Phenotypic characteristics such as the absence of fermentation, the absence of sexual structures and ballistoconidia, the assimilation of myo-inositol and d-glucuronate, and positive Diazonium blue B and urease reactions indicated that these strains belong to the genus Cryptococcus. The novel strains differed from Cryptococcus laurentii in six physiological tests and differed from other related species in more than six tests. A phylogenetic analysis of the sequences of the D1/D2 domains of the LSU rDNA and the ITS regions placed these strains in the Bulleromyces clade within the order Tremellales, with C. laurentii as their closest described relative. The novel strains showed 1.6 and 7.5 % divergence in the D1/D2 domain of the LSU rDNA and ITS regions, respectively, with respect to C. laurentii. The divergence from other species was more than 3 % for the D1/D2 domain and more than 9 % for the ITS region. On the basis of the phenotypic and molecular data, strains S-15LT and 3-C1 represent a novel species within the genus Cryptococcus, for which the name Cryptococcus rajasthanensis sp. nov. is proposed. The type strain is S-15LT (=MTCC 7075T=CBS 10406T).

Characterization of the novel HLA‐C *07:944 allele by next‐generation sequencing

HLA ◽  
2021 ◽  
Author(s):  
Maria Loginova ◽  
Olga Makhova ◽  
Daria Smirnova ◽  
Igor Paramonov ◽  
Maksim Zarubin
Keyword(s):  
Next Generation Sequencing ◽  
The Novel ◽  
Next Generation ◽  
Generation Sequencing

Characterization of the novel HLA‐B *51:296 allele by next‐generation sequencing

HLA ◽  
2020 ◽  
Author(s):  
Steve Genebrier ◽  
Vincent Elsermans ◽  
Emeric Texeraud ◽  
Gerald Bertrand ◽  
Virginie Renac
Keyword(s):  
Next Generation Sequencing ◽  
The Novel ◽  
Next Generation ◽  
Generation Sequencing

Characterization of the novel HLA‐DRB1*11:282 allele by sequencing‐based typing

HLA ◽  
2021 ◽  
Author(s):  
Marine Cargou ◽  
Vincent Elsermans ◽  
Isabelle Top ◽  
Laura Blouin ◽  
Jonathan Visentin
Keyword(s):  
The Novel
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