5 results on '"Xi-Qun Shao"'
Search Results
2. Design of a universal primer pair for the identification of deer species
- Author
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Yongyan Deng, Xi-Qun Shao, Pengfei Hu, Liuwei Xie, Dawei Zhao, Hengxing Ba, and Chunyi Li
- Subjects
0106 biological sciences ,0301 basic medicine ,Biodiversity ,Endangered species ,Interspecific competition ,Biology ,010603 evolutionary biology ,01 natural sciences ,03 medical and health sciences ,030104 developmental biology ,Evolutionary biology ,Genetics ,Coding region ,Identification (biology) ,Primer (molecular biology) ,Ecology, Evolution, Behavior and Systematics - Abstract
Deer species has both scientific research and economic value, and half of these species, however, are listed as endangered animals. For the conservation purpose, we designed a novel universal deer-specific PCR primer pair based on an evolutionarily conservative coding sequence (i.e., CEP295NL gene) across some deer species. This primer pair was successfully amplified and sequenced, showing around ~ 540 bp in cervids. Validation results showed that it can be utilized to develop a reliable and simple diagnostic tool for distinguishing other closely related species, as well as possibly interspecific identification amongst cervids.
- Published
- 2020
- Full Text
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3. Development and evaluation of a direct TaqMan qPCR assay for the rapid detection of diverse carnivore amdoparvoviruses
- Author
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Xiu-Ting Zhang, Yan-Hong Wu, Yong-Qiang Zhao, Tao Wei, Li Cong, Jian-Ke Wang, Bao-Zeng Xu, and Xi-Qun Shao
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animal diseases ,Foxes ,Biology ,Real-Time Polymerase Chain Reaction ,Rapid detection ,Sensitivity and Specificity ,Parvoviridae ,03 medical and health sciences ,chemistry.chemical_compound ,Dogs ,biology.animal ,Aleutian Mink Disease Virus ,TaqMan ,Animals ,Carnivore ,Mink ,Molecular Biology ,030304 developmental biology ,Amdoparvovirus ,DNA Primers ,0303 health sciences ,030306 microbiology ,Reproducibility of Results ,Cell Biology ,Sequence Analysis, DNA ,biology.organism_classification ,Virology ,chemistry ,DNA, Viral ,SYBR Green I ,Alkaline lysis - Abstract
Amdoparvoviruses infect carnivore species, including mink, raccoon dog, fox, skunk, and red panda. Amdoparvovirus infection is a major cause of morbidity and mortality in farmed minks. Here, we developed a direct TaqMan qPCR assay for detection and quantification of carnivore amdoparvoviruses by using three primers and one probe based on the conserved VP2 gene. The detection limit for Aleutian mink disease virus (AMDV) and Raccoon dog and arctic fox amdoparvovirus (RFAV) were 4.06 × 101 copies/μl and 2.93 × 101 copies/μl, respectively. Both intra- and inter-assay variability were less than 2%. Among 74 carnivore samples, the positive rates for amdoparvoviruses were 62.2% (46/74) by direct TaqMan qPCR, while only 40.5% (30/74) by SYBR Green I qPCR. This result suggests that the direct TaqMan qPCR was more sensitive than the SYBR Green I qPCR. Additionally, the direct TaqMan qPCR is a rapid and sensitive method for liquid samples at microliter level as the assay employed the direct alkaline lysis method to obtain viral DNA and, therefore, eliminated the cumbersome steps in extracting DNA. Overall, the direct TaqMan qPCR assay possessed high specificity, sensitivity, and reproducibility, indicating that it can be used as a powerful tool for detection and quantification of various carnivore amdoparvoviruses in epidemiological and pathogenesis studies.
- Published
- 2019
4. Novel Amdoparvovirus Infecting Farmed Raccoon Dogs and Arctic Foxes
- Author
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Jianming Qiu, Chun-Yi Li, Heng-Xing Ba, Yong-Jun Wen, Zhang Xiuting, Xi-Qun Shao, Ke-Jian Wang, Zhi-Gang Yue, and Fuhe Yang
- Subjects
Microbiology (medical) ,Veterinary medicine ,China ,Genes, Viral ,Epidemiology ,animal diseases ,Molecular Sequence Data ,Foxes ,lcsh:Medicine ,Parvoviridae ,lcsh:Infectious and parasitic diseases ,Parvoviridae Infections ,Molecular typing ,Genus ,parasitic diseases ,Animals ,viruses ,lcsh:RC109-216 ,Novel Amdoparvovirus Infecting Farmed Raccoon Dogs and Arctic Foxes ,Amdoparvovirus ,amdoparvovirus ,biology ,Family Parvoviridae ,Phylogenetic tree ,lcsh:R ,Dispatch ,Raccoon Dogs ,biology.organism_classification ,infection ,raccoon dog (Nyctereutes procyonoides) ,Kidney cell ,Molecular Typing ,Infectious Diseases ,Arctic ,Arctic fox (Vulpes lagopus) ,geographic locations - Abstract
A new amdoparvovirus, named raccoon dog and fox amdoparvovirus (RFAV), was identified in farmed sick raccoon dogs and arctic foxes. Phylogenetic analyses showed that RFAV belongs to a new species within the genus Amdoparvovirus of the family Parvoviridae. An RFAV strain was isolated in Crandell feline kidney cell culture.
- Published
- 2014
5. Isolation and complete nucleotide sequence of a Batai virus strain in Inner Mongolia, China.
- Author
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Hao Liu, Xi-qun Shao, Bo Hu, Jian-jun Zhao, Lei Zhang, Hai-ling Zhang, Xue Bai, Run-xiang Zhang, Deng-yun Niu, Yan-gang Sun, and Xi-jun Yan
- Abstract
Background: Batai virus (BATV) is a member of the Orthobunyavirus genus of the family Bunyaviridae, and a vector-borne pathogen. Genomic variations of BATV exist in different regions of the world, due to genetic reassortment. Whole-genome sequencing of any isolate is necessary for a phylogenetic analysis. In 1998, a BATV strain was isolated from an Anopheles philippines mosquito in Yunnan Province, China. This strain has not been found to infect any other host. We investigated BATV infection in cattle in Inner Mongolia, China and performed deep sequencing of the genome of the BATV isolate. Findings: Ninety-five blood samples were collected from cattle in Inner Mongolia, China in 2012. The BATV infection rate was 2.1%. Previously, BATV strain NM/12 was isolated from two cattle in Inner Mongolia, China, and the whole genomic sequence of the strain has been available. We determined the complete genomic nucleotide sequences of the small (S), medium (M), and large (L) genome segments using bovine blood obtained in 2012, and the nucleotide homologies of these segments with those from GenBank were 88.7%-97%, 84%-95.4%, and 72.6%-95.8%, respectively. The deduced amino acid identities were 87.2-99.7%, 64.2-96.8%, and 81.1-98.6%. Phylogenetic analyses based on full-length genomic sequences indicated that the M and L segments, and a portion of the S segment, of NM/12 are most closely related to the BATV strains isolated in Asia. The S and M segments of NM/12 were independent of phylogenetic lineages. The L segment was the most closely related to Chittoor/IG-20217 (isolated in India), and distantly related to isolated strains in Italy. Nucleotide substitution rates in the nucleotide sequences that code for the nucleocapsid, envelope glycoprotein, and polymerase protein of NM/12 strain were 2.56%, 4.69%, and 4.21%, respectively, relative to the original strain of MM2222. Conclusion: A novel BATV NM/12 strain from bovine serum collected in Inner Mongolia was isolated from cattle in China for the first time. Our findings elucidate the evolutionary status of the BATV NM/12 strain among different orthobunyavirus strains and may provide some clues to prevent the emergence of BATV infection in cattle and humans. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
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