A time series transcriptome analysis of cassava (Manihot esculenta Crantz) varieties challenged with Ugandan cassava brown streak virus

A time-course transcriptome analysis of two cassava varieties that are either resistant or susceptible to cassava brown streak disease (CBSD) was conducted using RNASeq, after graft inoculation with Ugandan cassava brown streak virus (UCBSV). From approximately 1.92 billion short reads, the largest...

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Main Authors: Amuge, T., Berger, Dave K., Katari, M.S., Myburg, A.A., Goldman, S.L., Ferguson, Morag E.
Format: Journal Article
Language:Inglés
Published: Springer 2017
Subjects:
Online Access:https://hdl.handle.net/10568/89689
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author Amuge, T.
Berger, Dave K.
Katari, M.S.
Myburg, A.A.
Goldman, S.L.
Ferguson, Morag E.
author_browse Amuge, T.
Berger, Dave K.
Ferguson, Morag E.
Goldman, S.L.
Katari, M.S.
Myburg, A.A.
author_facet Amuge, T.
Berger, Dave K.
Katari, M.S.
Myburg, A.A.
Goldman, S.L.
Ferguson, Morag E.
author_sort Amuge, T.
collection Repository of Agricultural Research Outputs (CGSpace)
description A time-course transcriptome analysis of two cassava varieties that are either resistant or susceptible to cassava brown streak disease (CBSD) was conducted using RNASeq, after graft inoculation with Ugandan cassava brown streak virus (UCBSV). From approximately 1.92 billion short reads, the largest number of differentially expressed genes (DEGs) was obtained in the resistant (Namikonga) variety at 2 days after grafting (dag) (3887 DEGs) and 5 dag (4911 DEGs). At the same time points, several defense response genes (encoding LRR-containing, NBARC-containing, pathogenesis-related, late embryogenesis abundant, selected transcription factors, chaperones, and heat shock proteins) were highly expressed in Namikonga. Also, defense-related GO terms of ‘translational elongation’, ‘translation factor activity’, ‘ribosomal subunit’ and ‘phosphorelay signal transduction’, were overrepresented in Namikonga at these time points. More reads corresponding to UCBSV sequences were recovered from the susceptible variety (Albert) (733 and 1660 read counts per million (cpm)) at 45 dag and 54 dag compared to Namikonga (10 and 117 cpm respectively). These findings suggest that Namikonga’s resistance involves restriction of multiplication of UCBSV within the host. These findings can be used with other sources of evidence to identify candidate genes and biomarkers that would contribute substantially to knowledge-based resistance breeding.
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spelling CGSpace896892025-11-11T10:38:01Z A time series transcriptome analysis of cassava (Manihot esculenta Crantz) varieties challenged with Ugandan cassava brown streak virus Amuge, T. Berger, Dave K. Katari, M.S. Myburg, A.A. Goldman, S.L. Ferguson, Morag E. cassava diseases disease control namikonga A time-course transcriptome analysis of two cassava varieties that are either resistant or susceptible to cassava brown streak disease (CBSD) was conducted using RNASeq, after graft inoculation with Ugandan cassava brown streak virus (UCBSV). From approximately 1.92 billion short reads, the largest number of differentially expressed genes (DEGs) was obtained in the resistant (Namikonga) variety at 2 days after grafting (dag) (3887 DEGs) and 5 dag (4911 DEGs). At the same time points, several defense response genes (encoding LRR-containing, NBARC-containing, pathogenesis-related, late embryogenesis abundant, selected transcription factors, chaperones, and heat shock proteins) were highly expressed in Namikonga. Also, defense-related GO terms of ‘translational elongation’, ‘translation factor activity’, ‘ribosomal subunit’ and ‘phosphorelay signal transduction’, were overrepresented in Namikonga at these time points. More reads corresponding to UCBSV sequences were recovered from the susceptible variety (Albert) (733 and 1660 read counts per million (cpm)) at 45 dag and 54 dag compared to Namikonga (10 and 117 cpm respectively). These findings suggest that Namikonga’s resistance involves restriction of multiplication of UCBSV within the host. These findings can be used with other sources of evidence to identify candidate genes and biomarkers that would contribute substantially to knowledge-based resistance breeding. 2017 2017-12-12T15:08:34Z 2017-12-12T15:08:34Z Journal Article https://hdl.handle.net/10568/89689 en Open Access application/pdf Springer Amuge, T., Berger, D.K., Katari, M.S., Myburg, A.A., Goldman, S.L. & Ferguson, M.E. (2017). A time series transcriptome analysis of cassava (Manihot esculenta Crantz) varieties challenged with Ugandan cassava brown streak virus. Scientific Reports, 7(1), 9747.
spellingShingle cassava
diseases
disease control
namikonga
Amuge, T.
Berger, Dave K.
Katari, M.S.
Myburg, A.A.
Goldman, S.L.
Ferguson, Morag E.
A time series transcriptome analysis of cassava (Manihot esculenta Crantz) varieties challenged with Ugandan cassava brown streak virus
title A time series transcriptome analysis of cassava (Manihot esculenta Crantz) varieties challenged with Ugandan cassava brown streak virus
title_full A time series transcriptome analysis of cassava (Manihot esculenta Crantz) varieties challenged with Ugandan cassava brown streak virus
title_fullStr A time series transcriptome analysis of cassava (Manihot esculenta Crantz) varieties challenged with Ugandan cassava brown streak virus
title_full_unstemmed A time series transcriptome analysis of cassava (Manihot esculenta Crantz) varieties challenged with Ugandan cassava brown streak virus
title_short A time series transcriptome analysis of cassava (Manihot esculenta Crantz) varieties challenged with Ugandan cassava brown streak virus
title_sort time series transcriptome analysis of cassava manihot esculenta crantz varieties challenged with ugandan cassava brown streak virus
topic cassava
diseases
disease control
namikonga
url https://hdl.handle.net/10568/89689
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