Pio-Ribeiro, G and Pappu, S S and Pappu, H R and Andrade, G P and Reddy, D V R (2000) Occurrence of cowpea aphid-borne mosaic virus in peanut in Brazil. Plant Disease, 84 (7). pp. 760-766. ISSN 0191-2917
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Abstract
Surveys of groundnut crops in northeastern Brazil since 1995 showed the occurrence of a hitherto unreported virus disease. Characteristic leaf symptoms were ring spots and blotches. The virus was seed transmitted in groundnut (1/610) and cowpea (47/796). Local and systemic symptoms were observed in cowpea (cv. TVu 3433) known to be susceptible to most cowpea aphid-borne mosaic virus (CABMV) isolates. The virus was transmitted by aphids Toxoptera citricidus and Aphis gossypii. Using degenerate primers, the 3′ terminal region of the viral genome was cloned and sequenced. Sequence analyses of the coat protein and the 3′ untranslated region indicated that the potyvirus was most closely related to CABMV isolates from South Africa, Zimbabwe, and the United States. On the basis of genome analysis, the virus was identified as CABMV. The natural occurrence of CABMV on groundnut has so far not been reported. The significance of this finding especially for germplasm exchange is discussed
| Item Type: | Article |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | aphid transmission, coat protein gene, seed-borne infection, sequence relationships |
| Subjects: | Mandate crops > Groundnut |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 14 Nov 2011 11:09 |
| Last Modified: | 14 Nov 2011 11:09 |
| URI: | http://oar.icrisat.org/id/eprint/3938 |
| Official URL: | http://dx.doi.org/10.1094/PDIS.2000.84.7.760 |
| Projects: | UNSPECIFIED |
| Funders: | American Peanut Foundation and the Georgia Agricultural Commodity Commission for Peanut |
| Acknowledgement: | Financial support from the American Peanut Foundation and the Georgia Agricultural Commodity Commission for Peanut is gratefully acknowledged. The surveys were supported by the CNPA-EMBRAPA x UFRPE agreement and by the IAC, Campinas, SP, Brazil. Access to sequence analysis software and GenBank was provided by the Research Computing Resource, University of Georgia. S. S. Pappu is supported by a postdoctoral fellowship from the College of Agricultural and Environmental Sciences, University of Georgia |
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