An aphid-transmissible field isolate of potato virus Y, strain MM, was purified from a pepper host and cloned. All but 18 terminal nucleotides of the 9.7 kb genome are apparently contained in two overlapping cDNA clones. The library of cDNA clones is likely to be representative of the viral RNA population present in infected plants because restriction endonuclease maps derived from cloned and u...

The Pvr4 resistance gene in pepper confers a complete resistance to the three pathotypes of potato virus Y (PVY) and to pepper mottle virus (PepMoV). In order to use this gene in a marker-assisted selection (MAS) program and to permit the pyramiding of several potyvirus resistance genes in the same cultivar, tightly linked amplified fragment length polymorphism (AFLP) markers were obtained by t...

The experiment was conducted at the research field and post graduate laboratory of Plant Pathology Department, Hajee Mohammad Danesh Science Technology University, Dinajpur, during 2015 - 2016 to find out performance different source’s seed potatoes select suitable methods for improvement farm saved potatoes. In experiment, compared with certified seed, positive selection’s plot technique’s (ST...

Molecular evolution of RNA viruses: Plant RNA viruses evolve more rapidly than the DNA of their plant hosts due to a higher mutation rate. Mutational processes include nucleotide substitution that replaces one nucleotide by another, and insertions and/or deletions that result in sequence length changes. In addition to mutation, inter-strain recombination can produce new mosaic strains9. It is i...