Mase Masaji, Yamamoto Yu, Iseki Hiroshi, Tanikawa Taichiro, Kurokawa Aoi
National Institute of Animal Health, 3-1-5 Kannondai, Tsukuba 305-0856, Japan.
United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
Viruses. 2022 Jul 21;14(7):1590. doi: 10.3390/v14071590.
(GyVg1, previously recognized as avian gyrovirus 2), which was first reported in chicken in 2011, is a new member of the genus Gyrovirus. The presence of GyVg1 has also been confirmed in different regions of Europe, South America, Africa, and Asia, indicating its global distribution. However, because there are no reports of examining the distribution of GyVg1 in animals in Japan, the epidemiology of this virus is unknown. In this study, we attempted to retrospectively detect GyVg1 in cryopreserved chicken materials derived from different two commercial broiler flocks in 1997. The GyVg1 genome was detected in organ materials derived from both flocks by PCR. GyVg1 detected in both flocks was classified into four genetic groups by analyzing the nucleotide sequences of the detected PCR products. These results suggest that diverse GyVg1 strains were present in commercial chicken flocks as early as 1997 in Japan.
GyVg1（以前被认为是禽环病毒2）于2011年首次在鸡中被报道，是环病毒属的一个新成员。欧洲、南美洲、非洲和亚洲的不同地区也已证实存在GyVg1，表明其在全球范围内分布。然而，由于日本尚无关于检测动物中GyVg1分布的报告，该病毒的流行病学尚不清楚。在本研究中，我们试图回顾性检测1997年来自不同两个商业肉鸡群的冷冻保存鸡材料中的GyVg1。通过PCR在两个鸡群的器官材料中检测到了GyVg1基因组。通过分析检测到的PCR产物的核苷酸序列，将两个鸡群中检测到的GyVg1分为四个遗传组。这些结果表明，早在1997年，日本的商业鸡群中就存在多种GyVg1毒株。
