| recombination, decreased host specificity and increased mobility may have driven the emergence of maize streak virus as an agricultural pathogen. | maize streak virus (msv; family geminiviridae, genus mastrevirus), the causal agent of maize streak disease, ranks amongst the most serious biological threats to food security in subsaharan africa. although five distinct msv strains have been currently described, only one of these - msv-a - causes severe disease in maize. due primarily to their not being an obvious threat to agriculture, very little is known about the 'grass-adapted' msv strains, msv-b, -c, -d and -e. since comparing the genetic ... | 2008 | 18753214 |