ArticleFrontiers in microbiology2024
Detection and genetic diversity of subgroup K avian leukosis virus in local chicken breeds in Jiangxi from 2021 to 2023.
Article in Frontiers in microbiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed.
- Genetic mutations within tva receptor gene confer resistance to ALV-A and ALV-K infection in chickens.Poultry science · 2026Article
- A Triplex Crystal Digital RT-PCR for the Detection of Avian Leukosis Virus, Chicken Infectious Anemia Virus, and Fowl Adenovirus.Animals : an open access journal from MDPI · 2026Article
- A novel recombinant ALV-K carrying ALV-J-derived LTR, pol, and 3'UTR from Chinese indigenous chicken breeds exhibits enhanced replication and increased hemangioma-associated pathogenicity.BMC veterinary research · 2026Article
- Acetylation-mediated regulation of ALV viral proteins: Implications for retroviral inhibition.PLoS pathogens · 2026Article
- Isolation and molecular characterization of subgroup J avian leukosis virus in native chicken breeds of China during 2022-2025.Frontiers in microbiology · 2025Article
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Abstract
Avian leukosis virus subgroup K (ALV-K) is a new subgroup of avian leukosis virus (ALV) that was first identified in Chinese native chickens in recent years. To further understand the molecular epidemiology and evolutionary diversity of ALV-K, this study investigated the molecular epidemiology of 73,664 chicken plasma samples collected from Jiangxi native chicken flocks. The results showed that ALV-J was the most predominant ALV subtype in Jiangxi native chickens, with a high positivity rate of 4.34%. From 2021 to 2023, there was a gradual upward trend in the proportion of positive numbers of ALV-K among ALV-positive samples, and there was a trend of outbreaks. ALV-J and ALV-K were the main co-infection patterns. Genetic evolutionary analysis based on ALV-K gp85 gene showed that the isolated ALV-K in this study were distributed in various branches of the evolutionary tree with genetic diversity. The homology results showed that the amino acid homology of the isolated ALV-K gp85 gene ranged from 33.9 to 88.1% with the reference strains of subtypes A, B, C, D, E, and J, and from 91.9 to 100% with the other ALV-K reference strains. Multiple mutations were present in the ALV-K gp85, and especially significant mutations were found in the highly variable region hr2. The results of ALV-K replication efficiency showed that the replication efficiency of ALV-K was significantly lower than that of ALV-J. These results enriched the genome sequence data of ALV-K in Chinese geoducks, and laid the foundation for further research on the pathogenesis and prevention of ALV-K.
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