Genome segment ratios change during whitefly transmission of two bipartite cassava mosaic begomoviruses

Cassava mosaic disease is caused by a complex of whitefly-transmitted begomoviruses, which often occur in co-infections. These viruses have bipartite genomes consisting of DNA-A and DNA-B that are encapsidated into separate virions. Individual viruses exist in plants and whitefly vectors as populati...

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Main Authors: Kennedy, G.G., Sharpee, W., Jacobson, A.L., Wambugu, Mary, Mware, Benard, Hanley-Bowdoin, L.
Format: Journal Article
Language:Inglés
Published: Springer 2023
Subjects:
Online Access:https://hdl.handle.net/10568/130931
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author Kennedy, G.G.
Sharpee, W.
Jacobson, A.L.
Wambugu, Mary
Mware, Benard
Hanley-Bowdoin, L.
author_browse Hanley-Bowdoin, L.
Jacobson, A.L.
Kennedy, G.G.
Mware, Benard
Sharpee, W.
Wambugu, Mary
author_facet Kennedy, G.G.
Sharpee, W.
Jacobson, A.L.
Wambugu, Mary
Mware, Benard
Hanley-Bowdoin, L.
author_sort Kennedy, G.G.
collection Repository of Agricultural Research Outputs (CGSpace)
description Cassava mosaic disease is caused by a complex of whitefly-transmitted begomoviruses, which often occur in co-infections. These viruses have bipartite genomes consisting of DNA-A and DNA-B that are encapsidated into separate virions. Individual viruses exist in plants and whitefly vectors as populations comprising both genome segments, which can occur at different frequencies. Both segments are required for infection, and must be transmitted for virus spread to occur. Cassava plants infected with African cassava mosaic virus (ACMV) and/or East African cassava mosaic Cameroon virus (EACMCV), in which the ratios of DNA-A:DNA-B titers differed between plants, were used to examine how titers of the segments in a plant relate to their respective probabilities of acquisition by whiteflies and to the titers of each segment acquired and subsequently transmitted by whiteflies. The probabilities of acquiring each segment of ACMV did not reflect their relative titers in the source plant but they did for EACMCV. However, for both viruses, DNA-A:DNA-B ratios acquired by whiteflies differed from those in the source plant and the ratios transmitted by the whitefly did not differ from one – the ratio at which the highest probability of transmitting both segments is expected.
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spelling CGSpace1309312025-01-28T07:08:05Z Genome segment ratios change during whitefly transmission of two bipartite cassava mosaic begomoviruses Kennedy, G.G. Sharpee, W. Jacobson, A.L. Wambugu, Mary Mware, Benard Hanley-Bowdoin, L. african cassava mosaic virus plant viruses cassava Cassava mosaic disease is caused by a complex of whitefly-transmitted begomoviruses, which often occur in co-infections. These viruses have bipartite genomes consisting of DNA-A and DNA-B that are encapsidated into separate virions. Individual viruses exist in plants and whitefly vectors as populations comprising both genome segments, which can occur at different frequencies. Both segments are required for infection, and must be transmitted for virus spread to occur. Cassava plants infected with African cassava mosaic virus (ACMV) and/or East African cassava mosaic Cameroon virus (EACMCV), in which the ratios of DNA-A:DNA-B titers differed between plants, were used to examine how titers of the segments in a plant relate to their respective probabilities of acquisition by whiteflies and to the titers of each segment acquired and subsequently transmitted by whiteflies. The probabilities of acquiring each segment of ACMV did not reflect their relative titers in the source plant but they did for EACMCV. However, for both viruses, DNA-A:DNA-B ratios acquired by whiteflies differed from those in the source plant and the ratios transmitted by the whitefly did not differ from one – the ratio at which the highest probability of transmitting both segments is expected. 2023-06-21 2023-06-28T14:04:30Z 2023-06-28T14:04:30Z Journal Article https://hdl.handle.net/10568/130931 en Open Access Springer Kennedy, G.G., Sharpee, W., Jacobson, A.L., Wambugu, M., Mware, B. and Hanley Bowdoin, L. 2023. Genome segment ratios change during whitefly transmission of two bipartite cassava mosaic begomoviruses. Scientific Reports 13:10059.
spellingShingle african cassava mosaic virus
plant viruses
cassava
Kennedy, G.G.
Sharpee, W.
Jacobson, A.L.
Wambugu, Mary
Mware, Benard
Hanley-Bowdoin, L.
Genome segment ratios change during whitefly transmission of two bipartite cassava mosaic begomoviruses
title Genome segment ratios change during whitefly transmission of two bipartite cassava mosaic begomoviruses
title_full Genome segment ratios change during whitefly transmission of two bipartite cassava mosaic begomoviruses
title_fullStr Genome segment ratios change during whitefly transmission of two bipartite cassava mosaic begomoviruses
title_full_unstemmed Genome segment ratios change during whitefly transmission of two bipartite cassava mosaic begomoviruses
title_short Genome segment ratios change during whitefly transmission of two bipartite cassava mosaic begomoviruses
title_sort genome segment ratios change during whitefly transmission of two bipartite cassava mosaic begomoviruses
topic african cassava mosaic virus
plant viruses
cassava
url https://hdl.handle.net/10568/130931
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