TY - JOUR T1 - Analysis of the Effect of Virulent Marek’s Disease Virus SORF2 Gene on its Horizontal Transmission Capacity Using Real-Time PCR AU - Su, Shuai AU - Cui, Ning AU - Wang, Yixin AU - Sun, Aijun AU - Qi, Pengfei AU - Chen, Zimeng AU - Zhao, Peng AU - Cui, Zhizhong JO - Journal of Animal and Veterinary Advances VL - 11 IS - 24 SP - 4648 EP - 4654 PY - 2012 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2012.4648.4654 UR - https://makhillpublications.co/view-article.php?doi=javaa.2012.4648.4654 KW - Marek`s disease virus KW -SORF2 gene KW -horizontal transmission capacity KW -real-time PCR KW -China AB - Marek’s Disease Virus (MDV) Chinese strain GX0101 was the first reported recombinant MDV field strain with one Reticuloendotheliosis Virus (REV) Long Terminal Repeat (LTR) insert. REV LTR in the GX0101 genome increased the potential for horizontal transmission. REV LTR fragment has the biggest impact on SORF2 gene. Researchers detected the influence of SORF2 gene deletion on its horizontal transmission ability by real time PCR. The result shows that GX0101ΔSorf2 possesses similar replication ability with bac-GX0101 no mater on the level of lymphocyte or feather follicle. Although, researchers can detect MDV positive in feather follicles of sentinel in contact chickens at age 10 in both groups respectively, the number of SPF chickens infected with bac-GX0101 by contact is higher than the number of GX0101ΔSorf2 infection group. Therefore, SORF2 gene has certain effect on the horizontal transmission ability of the virus. ER -