scholarly journals An outbreak of HCV genotype 6a and 2a infection in South China: Confirmation of iatrogenic transmission by phylogenetic analysis of the NS5B region

2016 ◽  
Vol 14 (5) ◽  
pp. 4285-4292 ◽  
Author(s):  
Xiaoqiong Shao ◽  
Qiumin Luo ◽  
Qingxian Cai ◽  
Fulong Zhang ◽  
Jiangyun Zhu ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
South China ◽  
Ns5b Region ◽  
Hcv Genotype ◽  
Iatrogenic Transmission

Cephalotrichella echinicola, sp. nov. (Palaeonemertea : Cephalotrichellidae), a new nemertean associated with sea urchins from Nha Trang Bay (South China Sea)

2019 ◽  
Author(s):  
Alexei V. Chernyshev ◽  
Neonila Polyakova ◽  
Temir A. Britayev ◽  
Olga A. Bratova ◽  
Elena S. Mekhova
Keyword(s):  
Phylogenetic Analysis ◽  
South China Sea ◽  
South China ◽  
Sea Urchins ◽  
Laser Scanning Microscopy ◽  
Morphological Data ◽  
28S Rrna ◽  
Gene Markers ◽  
China Sea ◽  
Nha Trang Bay

About 50 nemertean species have been reported to live in symbiotic relationships with other invertebrates, but only two hoplonemertean species are associated with echinoderms (starfish). The palaeonemertean Cephalotrichella echinicola, sp. nov. is described from samples collected in Nha Trang Bay, Vietnam, South China Sea. The species is the first known nemertean associated with sea urchins (Metalia sternalis and M. spatagus), living on both the oral and the aboral surfaces of the host and freely moving among its spines. The internal morphology of the new species is described based on histological sections and confocal laser scanning microscopy with phalloidin and antibody labelling. Sequences of three nuclear gene markers (18S rRNA, 28S rRNA, and histone H3) and two mitochondrial gene markers (16S rRNA and COI) were compared with those of other palaeonemertean species, and a phylogenetic analysis suggested that C. echinicola is closest to the free-living Cephalotrichella alba Gibson & Sundberg, 1992. Both the morphological data and the phylogenetic analysis provide additional evidence for distinguishing the families Cephalotrichidae and Cephalotrichellidae and support the rejection of Cephalotrichella as a junior synonym of Cephalothrix. A new diagnosis of the genus Cephalotrichella is given. http://zoobank.org/urn:lsid:zoobank.org:pub:091B5D56-71B2-4F4C-9AD8-F666B4610DE2

Comparison of direct sequencing of the NS5B region with the Versant HCV genotype 2.0 assay for genotyping of viral isolates in Mexico

2020 ◽  
Vol 26 (2) ◽  
pp. 205-210 ◽  
Author(s):  
Luis Antonio Uribe-Noguez ◽  
José Antonio Mata-Marín ◽  
Alicia Ocaña-Mondragón ◽  
Ericka Nelly Pompa-Mera ◽  
Rosa María Ribas-Aparicio ◽  
...  
Keyword(s):  
Direct Sequencing ◽  
Ns5b Region ◽  
Hcv Genotype ◽  
Viral Isolates

scholarly journals Phylogenetic Analysis of NS5B Region of Hepatitis C Genotype 3a Virus among Different Risk Groups in Iran

2021 ◽  
Vol 20 (12) ◽  
Author(s):  
Fahimeh Ranjbar Kermani ◽  
Kamran Mousavi Hosseini ◽  
Sedigheh Amini-Kafiabad ◽  
Mahtab Maghsudlu ◽  
Zohreh Sharifi ◽  
...  
Keyword(s):  
Hepatitis C ◽  
Drug Abuse ◽  
Phylogenetic Tree ◽  
Blood Donors ◽  
Risk Groups ◽  
Intravenous Drug ◽  
Ns5b Region ◽  
Bleeding Disorders ◽  
Hcv Genotype ◽  
Genotype 3A

Background: Hepatitis C virus (HCV) is a major cause of liver diseases. Transmission of HCV, as a blood-borne virus, is a major concern for the safety of blood products. In Iran, intravenous drug abuse is a major risk factor for HCV transmission. Recently a change in the distribution of HCV genotype among Iranian blood donors has been reported, and genotype 3a is reported as the most frequent genotype. Also, genotype 3a is the dominant genotype among IDUs. Objective: To investigate the association between HCV genotype 3a circulating in the community, sequences of HCV genotype 3a were analyzed among different risk groups in Iran. Methods: In this cross-sectional study, a partial sequence of the NS5B region of the HCV genome was isolated from 58 blood donors, 48 intravenous drug users (IDUs), and 31 patients with inherited bleeding disorders (IBDs) infected with HCV genotype 3a were included. The published sequence data were obtained from the Gen Bank database and were compared to construct the phylogenetic trees. Results: Of 58 blood donors infected with subtype 3a, 31 (53.5%) reported the risk of intravenous drug abuse. In the phylogenetic tree, no separate cluster was formed to differentiate between HCV sequences in blood donors and IDUs. A cluster at the middle level was found in the phylogenetic tree formed by sequences from blood donors, IDUs, and patients with inherited bleeding disorders. Conclusions: The phylogenetic tree showed the phylogenetic mixing of genotype 3a sequences in BDs, IBD patients, and IDUs. The results confirmed the extensive transmission of IDU-related genotype 3a towards the general population.

Additions to Karst Fungi 3: Prosthemium sinense sp nov., from Guizhou Province, China

Phytotaxa ◽  
2016 ◽  
Vol 284 (4) ◽  
pp. 281 ◽  
Author(s):  
HIRAN A. ARIYAWANSA ◽  
KEVIN D. HYDE ◽  
KAZUAKI TANAKA ◽  
SAJEEWA S. N. MAHARACHCHIK-UMBURA ◽  
ABDULLAH M. AL-SADI ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
South China ◽  
Sequence Data ◽  
Novel Species ◽  
Guizhou Province ◽  
Karst Area ◽  
The Novel ◽  
Asexual Morph ◽  
Sexual Morph ◽  
Size And Morphology

During an assessment of biodiversity of ascomycetous fungi in the South China Karst area in Guizhou Province, China, a novel species of Prosthemium was collected. We isolated the taxon and sequenced the ITS, LSU and TUB gene regions. The novel taxon is characterized by immersed, globose or depressed globose ascomata, flattened, papillate ostioles, cellular pseudoparaphyses, broadly cylindrical to broadly cylindro-clavate asci, narrowly oblong, muriform ascospores and a prosthemium-like asexual morph produced in culture. The result of phylogenetic analysis based on combined ITS, LSU and TUB sequence data indicate that the species belongs to the genus Prosthemium and formed a separate clade within the genus. The new fungus is most similar to Prosthemium betulinum, Pr. intermedium, Pr. neobetulinum and Pr. stellare, from which it differs in the overall smaller size and morphology of sexual morph and asexual morph, as well as phylogeny. Thus new fungus is described and illustrated herein as Prosthemium sinense.

A new stemmed echinoderm from the Furongian of China and the origin of Glyptocystitida (Blastozoa, Echinodermata)

2016 ◽  
Vol 154 (3) ◽  
pp. 465-475 ◽  
Author(s):  
SAMUEL ZAMORA ◽  
COLIN D. SUMRALL ◽  
XUE-JIAN ZHU ◽  
BERTRAND LEFEBVRE
Keyword(s):  
Phylogenetic Analysis ◽  
South China ◽  
Sister Group ◽  
Character Evolution ◽  
Clear Understanding ◽  
Late Cambrian ◽  
History Of

AbstractThe Furongian (late Cambrian) is an extremely poorly sampled time in the history of echinoderms, with only few localities yielding complete specimens. Here, we document an exquisitely preserved stemmed echinoderm from the Furongian Sandu Formation in South China that provides important new data illuminating the origin of Glyptocystitida, a common Palaeozoic clade of echinoderms. Sanducystis sinensis n. gen. n. sp. displays an organized theca bearing three circlets of plates (basal, infralateral and lateral), a laterally positioned periproct in the CD interray, a lack of respiratory pectinirhombs and a stem divided in two parts, with expanded inner and outer columnals proximally and narrow, elongate, homeomorphic columnals distally. A phylogenetic analysis places Sanducystis more derived than the columnal-bearing ‘eocrinoid’ Ridersia and sister group of a clade encompassing Macrocystella-like glyptocystitoid rhombiferans from the Furongian onwards. By filling in an important morphological gap, Sanducystis provides a clear understanding of character evolution within Glyptocystitida.

scholarly journals Phylogenetic analysis of HCV subgenotypes in patients from Sichuan province in China based on the NS5B region

2015 ◽  
Vol 36 (4) ◽  
pp. 1028-1034 ◽  
Author(s):  
BIN NIE ◽  
GUANGJIONG ZHANG ◽  
YONGCAN GUO ◽  
QINGFENG LI ◽  
JINBO LIU ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Sichuan Province ◽  
Ns5b Region
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