TY  - JOUR
AV  - restricted
A1  - Pio-Ribeiro, G
A1  - Pappu, S S
A1  - Pappu, H R
A1  - Andrade, G P
A1  - Reddy, D V R
TI  - Occurrence of cowpea aphid-borne mosaic virus in peanut in Brazil
UR  - http://dx.doi.org/10.1094/PDIS.2000.84.7.760
JF  - Plant Disease
SN  - 0191-2917
PB  - American Phytopathological Society
N1  - 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
N2  - 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
KW  - aphid transmission
KW  -  coat protein gene
KW  -  seed-borne infection
KW  -  sequence relationships
Y1  - 2000///
SP  - 760
ID  - icrisat3938
EP  - 766
VL  - 84
IS  - 7
ER  -