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| Content Provider | Springer Nature Link |
|---|---|
| Author | Moradi, Zohreh Mehrvar, Mohsen Nazifi, Ehsan Zakiaghl, Mohammad |
| Copyright Year | 2016 |
| Abstract | Iranian johnsongrass mosaic virus (IJMV) is one of the most prevalent viruses causing maize mosaic disease in Iran. An IJMV isolate, Maz-Bah, was obtained from the maize showing mosaic symptoms in Mazandaran, north of Iran. The complete genomic sequence of Maz-Bah is 9544 nucleotides, excluding the poly(A) tail. It contains one single open reading frame of 9165 nucleotides and encodes a large polyprotein of 3054 amino acids, flanked by a 5′-untranslated region (UTR) of 143 nucleotides and a 3′-UTR of 236 nucleotides. The entire genomic sequence of Maz-Bah isolate shares identities of 84.9 and 94.2 % with the IJMV (Shz) isolate, the lone complete genome sequence available in the GenBank at the nucleotide (nt) and deduced amino acid (aa) levels, respectively. The whole genome sequences share identities of 51.5–69.8 and 44.9–74.3 % with those of other Sugarcane mosaic virus (SCMV) subgroup potyviruses at nt and aa levels, respectively. In phylogenetic trees based on the multiple alignments of the entire nt and aa sequences, IJMV isolates formed a separate sublineage of the tree with potyviruses infecting monocotyledons of cereals, indicating that IJMV is a member of SCMV subgroup of potyviruses. IJMV is most closely related to Sorghum mosaic virus and Maize dwarf mosaic virus and less closely related to the Johnsongrass mosaic virus and Cocksfoot streak virus. To further investigate the genetic relationship of IJMV, 9 other isolates from different hosts were cloned and sequenced. The identity of IJMV CP nt and aa sequences of 11 Iranian isolates ranged from 86.4 to 99.8 % and 90.5 to 99.7 %, respectively, indicating a high nt variability in CP gene. Furthermore, in the CP-based phylogenetic tree, IJMV isolates were clustered together with a maize potyvirus described as Zea mosaic virus from Israel (with 86–89 % nt identity), indicating that both isolates probably are the strains of the same virus. |
| Starting Page | 77 |
| Ending Page | 88 |
| Page Count | 12 |
| File Format | |
| ISSN | 09208569 |
| Journal | Virus Genes |
| Volume Number | 53 |
| Issue Number | 1 |
| e-ISSN | 1572994X |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2016-09-08 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Potyvirus Complete genome IJMV Phylogenetic analysis Coat protein gene Medical Microbiology Virology Plant Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Virology Genetics Medicine Molecular Biology |
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