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Molecular characterization of Citrus tristeza virus strains in Peninsular Malaysia

Ayazpour, Kavous and Sijam, Kamaruzaman and Vadamalai, Ganesan and Jaafar, Hawa Z. E. (2011) Molecular characterization of Citrus tristeza virus strains in Peninsular Malaysia. African Journal of Microbiology Research, 5 (18). art. no. 89C5E4112987. pp. 2838-2846. ISSN 1996-0808

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Sixty Malaysian CTV isolates were characterized by bi-directional polymerase chain reaction (BD-PCR) and restriction fragment length polymorphism (RFLP) analysis of their coat protein (CP) gene. In BD-PCR analysis, 392-bp fragments were amplified from seven isolates. The other 53 isolates produced only 320-bp fragments. RFLP patterns of RT-PCR products of CP gene digested with HinfI restriction enzyme were similar to I-IV, VI-VII and two new groups. Isolates AMK1, AMJ12, AMT38, AMT39 and AMT43 could not be classified when they were compared to any standard CTV digest pattern. These isolates produced a unique restriction pattern with two fragments of 210 and 300 bp and isolate AMI61 produced different restriction pattern with three fragments of about 100, 270 and 300 bp. Therefore these isolates were designated as Groups IX and X. These results suggest that CTV populations in Malaysia contain new genetic variants.

Item Type:Article
Keyword:Citrus tristeza virus (CTV); Strains; Coat protein (CP) gene; Restriction fragment length polymorphism (RFLP); Bi-directional PCR; Malaysia
Faculty or Institute:Faculty of Agriculture
Publisher:Academic Journals
ID Code:23695
Deposited By: Nur Farahin Ramli
Deposited On:28 Nov 2013 22:26
Last Modified:17 Nov 2017 09:53

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