2012
DOI: 10.4238/2012.september.3.3
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Diversity among isolates of cowpea severe mosaic virus infecting cowpeas in northeastern Brazil

Abstract: ABSTRACT. Eleven isolates of cowpea severe mosaic virus (CPSMV), a member of the genus Comovirus, were selected from 50 samples collected of nine cowpea fields in Northeastern Brazil (Piauí, Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Alagoas, Sergipe, Bahia, and Distrito Federal) and partially sequenced. The RNA1 partial sequence, corresponding to the helicase, viral genome-linked protein, picornain 3C-like protease, and the RNA-directed RNA polymerase genes from CPSMV, had high identity among isolates, … Show more

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Cited by 6 publications
(6 citation statements)
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References 13 publications
(11 reference statements)
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“…In this study, a reproducible system was used to routinely achieve transgenic cowpea plants to express a chimerical gene comprising a fragment from the proteinase cofactor gene of CPSMV and a fragment of the coat protein gene of CABMV (ΔCSMVCABMV). These sequences are conserved among the Brazilian isolates of these viruses (Barros et al ., ; Abreu et al ., ; F. J. L. Aragão, unpublished results). It is hypothesized that engineering the RNAi concept in transgenic cowpea plants to silence these viral genes would reduce or prevent viral RNA accumulation, rendering resistant plants.…”
Section: Discussionmentioning
confidence: 66%
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“…In this study, a reproducible system was used to routinely achieve transgenic cowpea plants to express a chimerical gene comprising a fragment from the proteinase cofactor gene of CPSMV and a fragment of the coat protein gene of CABMV (ΔCSMVCABMV). These sequences are conserved among the Brazilian isolates of these viruses (Barros et al ., ; Abreu et al ., ; F. J. L. Aragão, unpublished results). It is hypothesized that engineering the RNAi concept in transgenic cowpea plants to silence these viral genes would reduce or prevent viral RNA accumulation, rendering resistant plants.…”
Section: Discussionmentioning
confidence: 66%
“…In this study, a reproducible system was used to routinely achieve transgenic cowpea plants to express a chimerical gene comprising a fragment from the proteinase cofactor gene of CPSMV and a fragment of the coat protein gene of CABMV (DCSMVCABMV). These sequences are conserved among the Brazilian isolates of these viruses (Barros et al, 2011;Abreu et al, 2012;F. J. L. Aragão, unpublished results).…”
Section: Discussionmentioning
confidence: 76%
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“…(1997), existem pelo menos nove sorotipos de CPS-MV e um número desconhecido de variantes patogênicas. Contudo, em estudos de caracterização de sequências parciais e completas de genomas de isolados brasileiros de CPSMV, observou-se baixa variabilidade genética (ABREU et al 2012;BESER-RA et al 2011;BOARI et al 2021;TEIXEIRA et al 2021).…”
Section: Cowpea Severe Mosaic Virus (Cpsmv)unclassified
“…and common bean (Phaseolus vulgaris L.), have been reported. Those with the most predominance in the field are cucumber mosaic virus (CMV) (Eiras et al 2004), cowpea aphid-borne mosaic virus (CABMV) (Nicolini et al 2012), cowpea severe mosaic virus (CPSMV) (Abreu et al 2012) and cowpea mild mottle virus (CPMMV) (Lamas et al 2017). There are, however, few reports of viruses infecting lima bean (Carvalho et al 2015), possibly because lima bean is mainly cultivated by small farmers and has less economic importance than cowpea and common bean.…”
Section: Introductionmentioning
confidence: 99%