| 
              
              
              Open Access  
Copyright: The authors. This article is an open access 
article licensed under the terms of the Creative Commons Attribution License 
 
 
(http://creativecommons.org/licenses/by/2.0) which permits unrestricted use, 
distribution and reproduction in any medium, provided the work is properly 
cited. 
 
              
              
              Research 
              
              
(Published online: 
              16-07-2015) 
              10.  
              
              Molecular identification and genetic 
              diversity of open reading frame 7 field isolated porcine 
              reproductive and respiratory syndrome in North Sumatera, 
              Indonesia, in the period of 2008-2014 - Faisal Faisal, 
              Rini Widayanti, Aris Haryanto and Charles Rangga Tabu 
              
              Veterinary World, 8(7): 875-880   
              
   
                
                
doi: 
              10.14202/vetworld.2015.875-880   Faisal 
              Faisal: 
              Department of Veterinary Science, Faculty of Veterinary Medicine, 
              Gadjah Mada University, Yogyakarta, Indonesia; Department of 
              Molecular Biology, Animal Disease Investigation Centre of Medan, 
              North Sumatera, Indonesia; faisal.dvm@gmail.com Rini 
              Widayanti: 
              
              Department of Biochemistry, Faculty of Veterinary Medicine, Gadjah 
              Mada University, Yogyakarta, Indonesia; riniwida@yahoo.co.uk Aris 
              Haryanto: 
              
              Department of Biochemistry, Faculty of Veterinary Medicine, Gadjah 
              Mada University, Yogyakarta, Indonesia; arisharyanto@yahoo.com Charles 
              Rangga Tabu: Department of Pathology, Faculty of Veterinary 
              Medicine, Gadjah Mada University, Yogyakarta, Indonesia;
              
              charles@ugm.ac.id   
              Received: 11-03-2015, Revised: 13-06-2015, Accepted: 22-06-2015, 
              Published online: 16-07-2015   
              
              
              Corresponding author:Faisal Faisal, e-mail: faisal.dvm@gmail.com 
 
              Citation:Faisal F, Widayanti R, 
              Haryanto A, Tabu CR (2015) Molecular identification and genetic 
              diversity of open reading frame 7 field isolated porcine 
              reproductive and respiratory syndrome in North Sumatera, 
              Indonesia, in the period of 2008-2014, Veterinary World 8(7): 
              875-880. 
 
              Abstract 
 Aim:
              Molecular identification and genetic diversity of open reading 
              frame 7 (ORF7) of field isolated porcine reproductive and 
              respiratory syndrome virus (PRRSV) in North Sumatera, Indonesia, 
              in the period of 2008-2014. 
              Materials and Methods: A total of 47 PRRSV samples were 
              collected from the death case of pigs. The samples were collected 
              from different districts in the period of 2008-2014 from North 
              Sumatera province. Two pairs of primer were designed to amplify 
              ORF7 of Type 1 and 2 PRRSV based on the sequence of reference 
              viruses VR2332 and Lelystad. Viral RNAs were extracted from 
              samples using PureLink™ micro-to-Midi total RNA purification 
              system (Invitrogen). To amplify the ORF7 of PRRSV, the synthesis 
              cDNA and DNA amplification were performed by reverse transcription 
              polymerase chain reaction (RT-PCR) and nested PCR method. Then the 
              DNA sequencing of PCR products and phylogenetic analysis were 
              accomplished by molecular evolutionary genetics analysis version 
              6.0 software program. 
              Results: RT-PCR and nested PCR used in this study had 
              successfully detected of 18 samples positive PRRS virus with the 
              amplification products at 703bp and 508bp, respectively. 
              Sequencing of the ORF7 shows that 18 PRRS viruses isolated from 
              North Sumatera belonged to North American (NA). JXA1 Like and 
              classic NA type viruses. Several mutations were detected, 
              particularly in the area of nuclear localization signal (NLS1) and 
              in NLS2. In the local viruses, which were related closed to JXA1 
              virus; there are two differences in amino acids in position 12 and 
              43 of ORF7. Our tested viruses showed that the amino acid 
              positions 12 and 43 are Asparagine and Arginine, while the 
              reference virus (VR2332, Lelystad, and JXA1) occupied both by 
              Lysine. Based on differences in two amino acids at position 12 and 
              43 showed that viruses from North Sumatera has its own uniqueness 
              and related closed to highly pathogenic PRRS (HP-PRRS) virus 
              (JXA1). 
              Conclusion: The results demonstrated that North Sumatera type 
              PRRS virus has caused PRRS outbreaks in pig in North Sumatera 
              between 2008 and 2014. The JAX1 like viruses had unique amino acid 
              residue in position 12 and 43 of asparagine and lysine, and these 
              were genetic determinants of North Sumatera viruses compared to 
              other PRRS viruses.  
              Keywords: Indonesia, North Sumatera, open 
              reading frame 7, porcine reproductive and respiratory syndrome 
              virus. 
 
              References 
 
                
                  | 1. Neumann, E.J., Kliebenstein, J.B., Johnson, C.D., Mabry, 
                  J.W., Bush, E.J., Seitzinger, A.H., Gree, A.L. and Zimmerman, 
                  J.J. (2005) Assessment of the economic impact of porcine 
                  reproductive and respiratory syndrome on swine production in 
                  the United States. J. Am. Vet. Med. Assoc., 227: 385-392. http://dx.doi.org/10.2460/javma.2005.227.385
 PMid:16121604
 |  
                  |  |  
                  | 2. Benfield, D.A., Nelson, E., Collins, J.E., Harris, L., 
                  Goyal, S.M., Robison, D., Christianson, W.T., Morrison, R.B., 
                  Gorcyca, D. and Chladek, D. (1992) Characterization of swine 
                  infertility and respiratory syndrome (SIRS) virus (isolate 
                  ATCC VR-2332). J. Vet. Diagn. Invest., 4: 127-133. http://dx.doi.org/10.1177/104063879200400202
 PMid:1616976
 |  
                  |  |  
                  | 3. Wensvoort, G., Terpstra, C., Pol, J.M., Ter Laak, E.A., 
                  Bloemraad, M., de Kluyver, E.P., Kragten, C., van Buiten, L., 
                  den Besten, A. and Wagenaar, F. (1991) Mystery swine disease 
                  in the Netherlands: The isolation of Lelystad virus. Vet. Q., 
                  13(3): 121-30. http://dx.doi.org/10.1080/01652176.1991.9694296
 PMid:1835211
 |  
                  |  |  
                  | 4. Tian, K., Yu, X., Zhao, T., Feng, Y., Cao, Z., Wang, C., Hu, 
                  Y., Chen, X., Hu, D., Tian, X., Liu, D., Zhang, S., Deng, X., 
                  Ding, Y., Yang, L., Zhang, Y., Xiao, H., Qiao, M., Wang, B., 
                  Hou, L., Wang, X., Yang, X., Kang, L., Sun, M., Jin, P., Wang, 
                  S., Kitamura, Y., Yan, J. and Gao, G.F. (2007) Emergence of 
                  fatal PRRSV variants: Unparalleled outbreaks of atypical PRRS 
                  in Cina and molecular dissection of the unique hallmark. PLoS 
                  One, 2: 526. Available from: http://www.plosone.org. http://dx.doi.org/10.1371/journal.pone.0000526
 PMid:17565379 PMCid:PMC1885284
 |  
                  |  |  
                  | 5. Zhou, L. and Yang, H. (2010), Porcine reproductive and 
                  respiratory syndrome in China. Virus Res., 154: 31-37. http://dx.doi.org/10.1016/j.virusres.2010.07.016
 PMid:20659506
 |  
                  |  |  
                  | 6. FAO. (2011) Focus on: Porcine reproductive and respiratory 
                  syndrome (PRRS) virulence jumps and persistent circulation in 
                  Southeast Asia. EMPRES, ???(5): ???. 1-8. |  
                  |  |  
                  | 7. Helen, R., Papadopoulou, C., Drew, T., Gresham, A. and 
                  Sabirovic, M. (2009) Highly pathogenic porcine reproductive 
                  and respiratory syndrome. Int Dis Monit Situat Assess, 23: 10. |  
                  |  |  
                  | 8. Nilubol, D., Tripipat, T., Hoonsuwan, T. and Kortheerakul, 
                  K. (2012) Porcine reproductive and respiratory syndrome virus, 
                  Thailand, 2010-2011. Emerg. Infect. Dis., 18(12): 2039-2043. http://dx.doi.org/10.3201/eid1812.111105
 PMid:23171619 PMCid:PMC3557868
 |  
                  |  |  
                  | 9. Dokland, T. (2010) The structural biology of PRRSV. Virus 
                  Res., 154: 86-97. http://dx.doi.org/10.1016/j.virusres.2010.07.029
 PMid:20692304
 |  
                  |  |  
                  | 10. Meulenberg, J.J., Petersen-den Besten, A., De Kluyver, 
                  E.P., Moormann, R.J., Schaaper, W.M. and Wensvoort, G. (1995) 
                  Characterization of proteins encoded by ORFs 2 to 7 of 
                  Lelystad virus. Virology, 206: 155-163. http://dx.doi.org/10.1016/S0042-6822(95)80030-1
 |  
                  |  |  
                  | 11. Yoo, D., Wootton, S.K., Li, G., Song, C. and Rowland, R.R. 
                  (2003) Colocalization and interaction of the porcine 
                  arterivirus nucleocapsid protein with the small nucleolar RNA 
                  associated protein fibrillarin. J. Virol., 77: 12173-12183. http://dx.doi.org/10.1128/JVI.77.22.12173-12183.2003
 PMid:14581554 PMCid:PMC254285
 |  
                  |  |  
                  | 12. Lin, C.N., Lin, W.H., Hung, L.N., Wang, S.Y. and Chiou, 
                  M.T. (2013) Comparison of viremia of Type 2 porcine 
                  reproductive and respiratory syndrome virus in naturally 
                  infected pigs by zip nucleic acid probe-based real-time PCR. 
                  BMC Vet. Res., 9: 181. http://dx.doi.org/10.1186/1746-6148-9-181
 PMid:24028493 PMCid:PMC3847877
 |  
                  |  |  
                  | 13. Wernike, K., Hoffmann, B., Dauber, M., Lange, E., 
                  Schirrmeier, H. and Beer, M. (2012) Detection and typing of 
                  highly pathogenic porcine reproductive and respiratory 
                  syndrome virus by multiplex real-time RT-PCR. PLoS One, 7(6): 
                  Available from: http://www.plosone.org. Last accessed on 
                  25-01-2015. http://dx.doi.org/10.1371/journal.pone.0038251
 |  
                  |  |  
                  | 14. Hao, X., Lu, Z., Kuang, W., Sun, P., Fu, Y., Wu, L., Zhao, 
                  Q., Bao, H., Fu, Y., Cao, Y., Li, P., Bai, X., Li, D. and Liu, 
                  Z. (2011) Polymorphic genetic characterization of the ORF7 
                  gene of porcine reproductive and respiratory syndrome virus 
                  (PRRSV) in China. J. Virol., 8: 73. http://dx.doi.org/10.1186/1743-422X-8-73
 PMid:21333014 PMCid:PMC3049123
 |  
                  |  |  
                  | 15. Shi, Y., Hu, Z., Xiong, Z., Zhou, Y., Jin, X., Gu, C., Hu, 
                  X., Cheng, G., Song, N. and Zhang, W. (2013) Analysis of 
                  molecular variation of porcine reproductive and respiratory 
                  syndrome virus in Central China from 2006 to 2012. Arch. 
                  Virol., 158: 717-721. http://dx.doi.org/10.1007/s00705-012-1542-1
 PMid:23160706
 |  
                  |  |  
                  | 16. Guarino, H., Goyal, S.M., Murtaugh, M.P., Morrison, R.B., 
                  Kapur, V. (1999) Detection of porcine reproductive and 
                  respiratory syndrome virus by reverse transcription–polymerase 
                  chain reaction using different regions of the viral genome. J. 
                  Vet. Diagn. Invest., 11: 27-33. http://dx.doi.org/10.1177/104063879901100104
 PMid:9925208
 |  
                  |  |  
                  | 17. Rowland, R.R. and Yoo, D. (2003) Nucleolar-cytoplasmic 
                  shuttling of PRRSV nucleocapsid protein: A simple case of 
                  molecular mimicry or the complex regulation by nuclear import, 
                  nucleolar localization and nuclear export signal sequences. 
                  Virus Res, 95: 23-33. http://dx.doi.org/10.1016/S0168-1702(03)00161-8
 |  
                  |  |  
                  | 18. Music, N. and Gagnon, C.A. (2010) The role of porcine 
                  reproductive and respiratory syndrome (PRRS) virus structural 
                  and non-structural proteins in pathogenesis. Anim. Health Res. 
                  Rev., 11(2): 135-163. http://dx.doi.org/10.1017/S1466252310000034
 PMid:20388230
 |  
                  |  |  
                  | 19. Wootton, S.K., Rowland, R.R. and Yoo, D. (2002) 
                  Phosphorylation of the porcine reproductive and respiratory 
                  syndrome virus nucleocapsid protein. J. Virol., 76: 
                  10569-10576. http://dx.doi.org/10.1128/JVI.76.20.10569-10576.2002
 PMid:12239338 PMCid:PMC136587
 |  
                  |  |  
                  | 20. Wootton, S.K. and Yoo, D. (2003) Homo-oligomerization of 
                  the porcine reproductive and respiratory syndrome virus 
                  nucleocapsid protein and the role of disulfide linkages. J. 
                  Virol., 77: 4546-4557. http://dx.doi.org/10.1128/JVI.77.8.4546-4557.2003
 PMid:12663761 PMCid:PMC152152
 |  
                  |  |  
                  | 21. Hu, S.P., Zhang, Z., Liu, Y.G., Tian, Z.J., Wu, D.L., Cai, 
                  X.H. and He, X.J. (2012) Pathogenicity and distribution of 
                  highly pathogenic porcine reproductive and respiratory 
                  syndrome virus in pigs. Transbound Emerg. Dis., 60: 351-359. http://dx.doi.org/10.1111/j.1865-1682.2012.01354.x
 PMid:22762447
 |  
                  |  |  
                  | 22. Metwallly, S., Mohamed, F., Faaberg, K., Burrage, T., 
                  Prarat, M., Moran, K., Bracht, A., Mayr, G., Berninger, M., 
                  Koster, L., To, T.L., Nguyen, V.L., Reising, M., Landgraf, J., 
                  Cox, L., Lubroth, J. and Carrillo, C. (2010) Pathogenicity and 
                  molecular characterization of emerging porcine reproductive 
                  and respiratory syndrome virus in vietnam in 2007. Transbound 
                  Emerg. Dis., 57: 315-329. http://dx.doi.org/10.1111/j.1865-1682.2010.01152.x
 PMid:20629970
 |  
                  |  |  
                  | 23. Rossow, K.D., Collins, J.E., Goyal, S.M., Nelson, E.A., 
                  Christopher-Hennings, J. and Benfield, D.A. (1995) 
                  Pathogenesis of porcine reproductive and respiratory syndrome 
                  virus infection in gnotobiotic pigs. Vet. Pathol., 32: 
                  361-373. http://dx.doi.org/10.1177/030098589503200404
 PMid:7483210
 |  
                  |  |  
                  | 24. Zhou, Z., Ni, J., Cao, Z., Han, X., Xia, Y., Zi, Z., Ning, 
                  K., Liu, Q., Cai, L., Qiu, P., Deng, X., Hu, D., Zhang, Q., 
                  Fan, Y., Wu, J., Wang, L., Zhang, M., Yu, X., Zhai, X. and 
                  Tian, K. (2011) The epidemic status and genetic diversity of 
                  14 highly pathogenic porcine reproductive and respiratory 
                  syndrome virus (HP-PRRSV) isolates from China in 2009. Vet. 
                  Microbiol., 150(3-4): 257-269. http://dx.doi.org/10.1016/j.vetmic.2011.02.013
 PMid:21411250
 |  |