Discovery of a novel genogroup feline calicivirus through molecular evolution in group-housed cats in China
文献类型： 外文期刊
作者： Zhang, Ya 1 ; Cheng, Zheng 2 ; Guo, Cunjie 3 ; Yang, Tong 3 ; Zhao, Wen 6 ; Qian, Jing 1 ; Xia, Xingxia 1 ; Bi, Junming 7 ; Zhou, Dawei 8 ; Xu, Siyu 1 ; Li, Zhimin 1 ; Zhu, Yumei 1 ; Zhang, Haitao 3 ; Tan, Yeping 1 ; Bi, Zhenwei 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Vet Med, Natl Ctr Engn Res Vet Bioprod, Key Lab Vet Biol Engn & Technol,Minist Agr & Rural, Nanjing 210014, Peoples R China
2.HeroPeter Biotechnol Co Ltd, Changzhou 213100, Peoples R China
3.Jiangsu Lihua Anim Husb Co Ltd, Changzhou 213100, Peoples R China
4.GuoTai Taizhou Ctr Technol Innovat Vet Biol, Taizhou 225300, Peoples R China
5.Yangzhou Univ, Coll Vet Med, Jiangsu Coinnovat Ctr Prevent & Control Important, Yangzhou 225009, Peoples R China
6.Dept Agr & Anim Husb Engn, Cangzhou 061001, Peoples R China
7.Yantai Inst Consulting & Design Environm Protect E, Yantai 264000, Peoples R China
8.Weihai Wendeng Dev Ctr Anim Husb & Vet Med, Weihai 264400, Peoples R China
期刊名称：SCIENTIFIC REPORTS （ 影响因子：3.9； 五年影响因子：4.3 ）
ISSN： 2045-2322
年卷期： 2025 年 15 卷 1 期
页码：
收录情况： SCI
摘要： Feline calicivirus (FCV) is a highly infectious pathogen that causes upper respiratory tract disease (URTD), with a higher prevalence in group-housed cats compared to those raised individually. In this study, 15 FCV strains were isolated from group-housed cats exhibiting URTD symptoms in Changzhou, China, in 2024. Phylogenetic analysis based on the VP1 sequences revealed that 13 of 15 strains clustered within genogroup I (G I), while none belonged to genogroup II (G II). Notably, the remaining two strains grouped with several recently published Chinese isolates, forming an independent branch distinct from both G I and G II, proposed as genogroup III (G III). The VP1 proteins of the 13 G I strains exhibited specific residues 377N, 539A, and 557G, consistent with the established G I-specific markers (377N/S, 539A/P, and 557G). In contrast, G II strains typically retain 377 K, 539 V, and 557S. Interestingly, the G III strains displayed 377N, 539A (specific to G I) and 557S (specific to G II). Recombinant analysis found that co-circulating G I and G III resulted in a recombinant strain. Furthermore, neutralization tests demonstrated poor cross-neutralization between G I and G III strains. This study provides valuable insights for the development of effective vaccination strategies.
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