NDLI: Molecular characterization of a new begomovirus associated with leaf yellow mosaic disease of Jatropha curcas in India

Content Provider	Springer Nature Link
Author	Srivastava, Ashish Kumar, S. Jaidi, Meraj Raj, S. K.
Copyright Year	2015
Abstract	During a survey in June 2011, severe leaf yellow mosaic disease was observed on about 45 % plants of Jatropha curcas growing in the Katerniaghat wildlife sanctuary in India. An association of a begomovirus with disease was detected in 15 out of 20 samples by PCR using begomovirus genus-specific primers and total DNA isolated from symptomatic leaf samples. For identification of the begomovirus, the complete genome was amplified using a Phi-29 DNA-polymerase-based rolling-circle amplification kit and total DNA from five representative samples and then digested with BamHI. The linearized RCA products were cloned and sequenced. Their GenBank accession numbers are JN698954 (SKRK1) and JN135236 (SKRK2). The sequences of the two begomovirus isolates were 97 % identical to each other and no more than 86 % to those of jatropha mosaic India virus (JMIV, HM230683) and other begomoviruses reported worldwide. In phylogenetic analysis, SKRK1 and SKRK2 clustered together and showed distant relationships to jatropha mosaic India virus, Jatropha curcas mosaic virus, Indian cassava mosaic virus, Sri Lankan cassava mosaic virus and other begomoviruses. Based on 86 % sequence identities and distant phylogenetic relationships to JMIV and other begomoviruses and the begomovirus species demarcation criteria of the ICTV (<89 % sequence identity of complete DNA-A genome), the begomovirus isolates associated with leaf yellow mosaic disease of J. curcas were identified as members of a new begomovirus species and provisionally designated as jatropha leaf yellow mosaic Katerniaghat virus (JLYMKV). Agroinfectious clones of the DNA molecule of the begomovirus isolate were also generated, and the fulfillment of Koch’s postulates was demonstrated in J. curcas plants.
Starting Page	1359
Ending Page	1362
Page Count	4
File Format	PDF
ISSN	03048608
Journal	Archives of Virology
Volume Number	160
Issue Number	5
e-ISSN	14328798
Language	English
Publisher	Springer Vienna
Publisher Date	2015-02-27
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Virology Medical Microbiology Infectious Diseases
Content Type	Text
Resource Type	Article
Subject	Virology Medicine

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