Identification and molecular characterization of a novel sugarcane streak mastrevirus and an isolate of the A-strain of maize streak virus from sugarcane in Nigeria

Sugarcane and maize plants showing symptoms typical of those described for the so-called “African streak viruses” (AfSVs) were encountered during field surveys conducted from February to July 2015 to document viruses infecting both crops across the northern Guinea savannah region of Nigeria. As part...

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Main Authors: Yahaya, A., Dangora, D.B., Alegbejo, M.D., Kumar, P. Lava, Alabi, O.J.
Format: Journal Article
Language:Inglés
Published: Springer 2017
Subjects:
Online Access:https://hdl.handle.net/10568/78167
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author Yahaya, A.
Dangora, D.B.
Alegbejo, M.D.
Kumar, P. Lava
Alabi, O.J.
author_browse Alabi, O.J.
Alegbejo, M.D.
Dangora, D.B.
Kumar, P. Lava
Yahaya, A.
author_facet Yahaya, A.
Dangora, D.B.
Alegbejo, M.D.
Kumar, P. Lava
Alabi, O.J.
author_sort Yahaya, A.
collection Repository of Agricultural Research Outputs (CGSpace)
description Sugarcane and maize plants showing symptoms typical of those described for the so-called “African streak viruses” (AfSVs) were encountered during field surveys conducted from February to July 2015 to document viruses infecting both crops across the northern Guinea savannah region of Nigeria. As part of this study, two categories of complete mastrevirus-like genome sequences were obtained from nine samples (maize = 2; sugarcane = 7). In pairwise comparisons, the full-length genomes of the first sequence category (2,687 nt each; maize = 2; sugarcane = 2) shared 96 to 99% identity with global isolates of the A-strain of maize streak virus (MSV-A), indicating that sugarcane may also serve as a reservoir host to MSV-A. Analysis of the complete genomes belonging to the second sequence category (2,757 nt each; sugarcane = 5) showed that they shared 42 to 67% identity with their closest AfSV relatives, thus indicating that they represent sequences of a novel mastrevirus. Both sequence categories shared 61-62% sequence identity with each other. Further analysis revealed that the novel sugarcane-infecting virus, tentatively named as sugarcane chlorotic streak virus (SCSV), arose from a putative interspecific recombination event involving two grass-infecting mastreviruses, eragrostis streak virus and urochloa streak virus, as putative parental sequences. The results of this study add to the repertoire of diverse AfSVs present in cereal and sugarcane mixed cropping landscapes in the northern Guinea savannah region of Nigeria, with implications for disease epidemiology.
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spelling CGSpace781672024-01-09T09:55:56Z Identification and molecular characterization of a novel sugarcane streak mastrevirus and an isolate of the A-strain of maize streak virus from sugarcane in Nigeria Yahaya, A. Dangora, D.B. Alegbejo, M.D. Kumar, P. Lava Alabi, O.J. maize sugarcane african streak viruses mastrevirus genomes virology Sugarcane and maize plants showing symptoms typical of those described for the so-called “African streak viruses” (AfSVs) were encountered during field surveys conducted from February to July 2015 to document viruses infecting both crops across the northern Guinea savannah region of Nigeria. As part of this study, two categories of complete mastrevirus-like genome sequences were obtained from nine samples (maize = 2; sugarcane = 7). In pairwise comparisons, the full-length genomes of the first sequence category (2,687 nt each; maize = 2; sugarcane = 2) shared 96 to 99% identity with global isolates of the A-strain of maize streak virus (MSV-A), indicating that sugarcane may also serve as a reservoir host to MSV-A. Analysis of the complete genomes belonging to the second sequence category (2,757 nt each; sugarcane = 5) showed that they shared 42 to 67% identity with their closest AfSV relatives, thus indicating that they represent sequences of a novel mastrevirus. Both sequence categories shared 61-62% sequence identity with each other. Further analysis revealed that the novel sugarcane-infecting virus, tentatively named as sugarcane chlorotic streak virus (SCSV), arose from a putative interspecific recombination event involving two grass-infecting mastreviruses, eragrostis streak virus and urochloa streak virus, as putative parental sequences. The results of this study add to the repertoire of diverse AfSVs present in cereal and sugarcane mixed cropping landscapes in the northern Guinea savannah region of Nigeria, with implications for disease epidemiology. 2017-02 2016-12-06T14:33:37Z 2016-12-06T14:33:37Z Journal Article https://hdl.handle.net/10568/78167 en Limited Access Springer Yahaya, A., Dangora, D.B., Alegbejo, M.D., Kumar, P.L. & Alabi, O.J. (2016). Identification and molecular characterization of a novel sugarcane streak mastrevirus and an isolate of the A-strain of maize streak virus from sugarcane in Nigeria. Archives of Virology, 1-6.
spellingShingle maize
sugarcane
african streak viruses
mastrevirus
genomes
virology
Yahaya, A.
Dangora, D.B.
Alegbejo, M.D.
Kumar, P. Lava
Alabi, O.J.
Identification and molecular characterization of a novel sugarcane streak mastrevirus and an isolate of the A-strain of maize streak virus from sugarcane in Nigeria
title Identification and molecular characterization of a novel sugarcane streak mastrevirus and an isolate of the A-strain of maize streak virus from sugarcane in Nigeria
title_full Identification and molecular characterization of a novel sugarcane streak mastrevirus and an isolate of the A-strain of maize streak virus from sugarcane in Nigeria
title_fullStr Identification and molecular characterization of a novel sugarcane streak mastrevirus and an isolate of the A-strain of maize streak virus from sugarcane in Nigeria
title_full_unstemmed Identification and molecular characterization of a novel sugarcane streak mastrevirus and an isolate of the A-strain of maize streak virus from sugarcane in Nigeria
title_short Identification and molecular characterization of a novel sugarcane streak mastrevirus and an isolate of the A-strain of maize streak virus from sugarcane in Nigeria
title_sort identification and molecular characterization of a novel sugarcane streak mastrevirus and an isolate of the a strain of maize streak virus from sugarcane in nigeria
topic maize
sugarcane
african streak viruses
mastrevirus
genomes
virology
url https://hdl.handle.net/10568/78167
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