Point mutations were introduced into the major capsid protein (P3) of cloned infectious cDNA of the polerovirus beet western yellows virus (BWYV) by manipulation of cloned infectious cDNA. Seven mutations targeted sites on the S domain predicted to lie on the capsid surface. An eighth mutation eliminated two arginine residues in the R domain, which is thought to extend into the capsid interior....

The Cowpea aphid-borne mosaic virus (CABMV), of the genus Potyvirus (Potyviridae), causes most prominent passion fruit (Passiflora spp.) disease in Brazil. is transmitted a non-circulating manner by many species aphids. Chemical control vector insect inefficient, due to nature virus-vector aphid relationship, and commercial are susceptible virus. As such, comprehending disease’s spatio-temporal...

Abstract: The objective of this work was to evaluate the inheritance resistance Cowpea aphid-borne mosaic virus (CABMV) in cowpea (Vigna unguiculata). study performed between parental genotypes IT85F-2687 (resistant) and 'BR-14 Mulato' (susceptible), generating F1, F2, F7 populations backcrosses with both genotypes. CABMV inoculated on plants from all generations, which were then evaluated thro...

Beginning in 2000, snap bean (Phaseolus vulgaris L.) crops exhibiting virus-like symptoms on the foliage (leaf distortion, yellow and green mottling, and mosaic) were increasing in frequency on a regional scale across the northern United States and Canada (10,20). These crops also produced fewer pods or pods that were either twisted or necrotic (hence unmarketable). Across the Midwest and north...

We review half a century of research on Cucumis melo resistance to Aphis gossypii from molecular to field levels. The Vat gene is unique in conferring resistance to both A. gossypii and the viruses it transmits. This double phenotype is aphid clone-dependent and has been observed in 25 melon accessions, mostly from Asia. It is controlled by a cluster of genes including CC-NLR, which has been ch...