scholarly journals Origin, Genetic Diversity, and Evolutionary Dynamics of Novel Porcine Circovirus 3

2018 ◽  
Vol 5 (9) ◽  
pp. 1800275 ◽  
Author(s):  
Gairu Li ◽  
Wanting He ◽  
Henan Zhu ◽  
Yuhai Bi ◽  
Ruyi Wang ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Evolutionary Dynamics ◽  
Porcine Circovirus ◽  
Porcine Circovirus 3

scholarly journals Evolution and Genetic Diversity of Porcine Circovirus 3 in China

Viruses ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 786 ◽  
Author(s):  
Ye Chen ◽  
Quanming Xu ◽  
Hong Chen ◽  
Xian Luo ◽  
Qi Wu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Eastern China ◽  
Porcine Circovirus ◽  
Recent Common Ancestor ◽  
Fujian Province ◽  
Tissue Samples ◽  
Genetic Characteristics ◽  
Most Recent Common Ancestor ◽  
Porcine Circovirus 3 ◽  
High Degree

The identification of a new circovirus (Porcine Circovirus 3, PCV3) has raised concern because its impact on swine health is not fully known. In Fujian Province in eastern China, even its circulating status and genetic characteristics are unclear. Here, we tested 127 tissue samples from swine from Fujian Province that presented respiratory symptoms. All of the PCV3 positive samples were negative for many other pathogens involved in respiratory diseases like PCV2, PRRSV, and CSFV, suggesting that PCV3 is potentially pathogenic. From phylogenetic analysis, PCV3 strains are divided into two main clades and five sub-clades; PCV3a-1, PCV3a-2, PCV3a-3, PCV3b-1, and PCV3b-2. Our identified strains belong to genotypes PCV3a-1, PCV3a-2, PCV3a-3, and PCV3b-2, indicating a high degree of genetic diversity of PCV3 in Fujian province until 2019. Interestingly, we found the time of the most recent common ancestor (tMRCA) of PCV3 was dated to the 1950s, and PCV3 has a similar evolutionary rate as PCV2 (the main epidemic genotypes PCV2b and PCV2d). In addition, positive selection sites N56D/S and S77T/N on the capsid gene are located on the PCV3 antigen epitope, indicating that PCV3 is gradually adaptive in swine. In summary, our results provide important insights into the epidemiology of PCV3.

scholarly journals New insights about the genetic diversity of Porcine circovirus 3 strains in Brazil

2020 ◽  
Author(s):  
Viviane Assao ◽  
Marcus Rebou as Santos ◽  
N via Lopes Rosado ◽  
Gustavo Bressan ◽  
Juliana Lopes Rangel Fietto ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Porcine Circovirus ◽  
Porcine Circovirus 3

Genetic diversity of porcine circovirus 3 strains and the first detection of two different PCV3 strains coinfecting the same host in Minas Gerais, Brazil

2021 ◽  
Author(s):  
Viviane Sisdelli Assao ◽  
Marcus Rebouças Santos ◽  
Nívia Carolina Lopes Rosado ◽  
Gustavo Costa Bressan ◽  
Juliana Lopes Rangel Fietto ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Minas Gerais ◽  
Porcine Circovirus ◽  
Porcine Circovirus 3

scholarly journals Genetic Diversity of Porcine Circovirus 3 Strains and the First Detection of Two Different PCV3 Strains Coinfecting the Same Host in Minas Gerais, Brazil

2021 ◽  
Author(s):  
Viviane Sisdelli Assao ◽  
Marcus Rebouças Santos ◽  
Nívia Carolina Lopes Rosado ◽  
Gustavo Costa Bressan ◽  
Juliana Lopes Rangel Fietto ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Real Time Pcr ◽  
Growing Pigs ◽  
Porcine Circovirus ◽  
Quantitative Real Time Pcr ◽  
Swine Industry ◽  
Pig Farms ◽  
Weaning Pigs ◽  
Porcine Circovirus 3 ◽  
First Time

Abstract Porcine circovirus 3 (PCV3) is a recently emerged circovirus discovered in 2016, which since then has drawn the attention of the swine industry worldwide. In this study, we evaluated the genetic diversity of PCV3 strains in pig farms. A total of 261 samples from sows, weaning pigs, growing pigs, and stillborn/mummified fetuses were analyzed by quantitative real-time PCR. The results revealed that PCV3 strains have at least two main lineages circulating in Brazil. For the first time, it was possible to detect the presence of two different PCV3 strains in the same host.

Porcine circovirus 3 in North and South America: Epidemiology and genetic diversity

2021 ◽  
Author(s):  
Viviane Sisdelli Assao ◽  
Marcus Rebouças Santos ◽  
Carlos Eduardo Real Pereira ◽  
Fabio Vannucci ◽  
Abelardo Silva‐Júnior
Keyword(s):  
Genetic Diversity ◽  
South America ◽  
Porcine Circovirus ◽  
Porcine Circovirus 3 ◽  
North And South America ◽  
North And South

Molecular Characterization of Novel Porcine Circovirus 3 (PCV3) in Pig Populations in the North of Vietnam

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Nguyen Van Giap ◽  
Chung Hee Chun ◽  
Huynh Thi My Le ◽  
Cao Thi Bich Phuong ◽  
Vu Thi Ngoc ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Porcine Circovirus ◽  
The North ◽  
Porcine Circovirus 3

scholarly journals Evolutionary Genetics of Mycobacterium tuberculosis and HIV-1: “The Tortoise and the Hare”

2021 ◽  
Vol 9 (1) ◽  
pp. 147
Author(s):  
Ana Santos-Pereira ◽  
Carlos Magalhães ◽  
Pedro M. M. Araújo ◽  
Nuno S. Osório
Keyword(s):  
Genetic Diversity ◽  
Drug Resistance ◽  
Mycobacterium Tuberculosis ◽  
Evolutionary Dynamics ◽  
Evolutionary Genetics ◽  
Host Cells ◽  
Whole Genome Sequencing Data ◽  
Host Immune System ◽  
Viral Mutant ◽  
Hiv 1

The already enormous burden caused by Mycobacterium tuberculosis and Human Immunodeficiency Virus type 1 (HIV-1) alone is aggravated by co-infection. Despite obvious differences in the rate of evolution comparing these two human pathogens, genetic diversity plays an important role in the success of both. The extreme evolutionary dynamics of HIV-1 is in the basis of a robust capacity to evade immune responses, to generate drug-resistance and to diversify the population-level reservoir of M group viral subtypes. Compared to HIV-1 and other retroviruses, M. tuberculosis generates minute levels of genetic diversity within the host. However, emerging whole-genome sequencing data show that the M. tuberculosis complex contains at least nine human-adapted phylogenetic lineages. This level of genetic diversity results in differences in M. tuberculosis interactions with the host immune system, virulence and drug resistance propensity. In co-infected individuals, HIV-1 and M. tuberculosis are likely to co-colonize host cells. However, the evolutionary impact of the interaction between the host, the slowly evolving M. tuberculosis bacteria and the HIV-1 viral “mutant cloud” is poorly understood. These evolutionary dynamics, at the cellular niche of monocytes/macrophages, are also discussed and proposed as a relevant future research topic in the context of single-cell sequencing.

scholarly journals Life history, climate and biogeography interactively affect worldwide genetic diversity of plant and animal populations

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
H. De Kort ◽  
J. G. Prunier ◽  
S. Ducatez ◽  
O. Honnay ◽  
M. Baguette ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Life History ◽  
Evolutionary Dynamics ◽  
Environmental Changes ◽  
Peripheral Populations ◽  
Plant Dispersal ◽  
Weak Support ◽  
Animal Populations ◽  
Plant Groups ◽  
Conservation Genetic

AbstractUnderstanding how biological and environmental factors interactively shape the global distribution of plant and animal genetic diversity is fundamental to biodiversity conservation. Genetic diversity measured in local populations (GDP) is correspondingly assumed representative for population fitness and eco-evolutionary dynamics. For 8356 populations across the globe, we report that plants systematically display much lower GDP than animals, and that life history traits shape GDP patterns both directly (animal longevity and size), and indirectly by mediating core-periphery patterns (animal fecundity and plant dispersal). Particularly in some plant groups, peripheral populations can sustain similar GDP as core populations, emphasizing their potential conservation value. We further find surprisingly weak support for general latitudinal GDP trends. Finally, contemporary rather than past climate contributes to the spatial distribution of GDP, suggesting that contemporary environmental changes affect global patterns of GDP. Our findings generate new perspectives for the conservation of genetic resources at worldwide and taxonomic-wide scales.

Enzymatic recombinase amplification coupled with CRISPR-Cas12a for ultrasensitive, rapid, and specific Porcine circovirus 3 detection

2021 ◽  
Vol 59 ◽  
pp. 101763
Author(s):  
Wuyin Zhang ◽  
Liang Xu ◽  
Qi Liu ◽  
Yingli Cao ◽  
Kankan Yang ◽  
...  
Keyword(s):  
Porcine Circovirus ◽  
Porcine Circovirus 3
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