| genetic variation in nacobbus aberrans: an approach toward taxonomic resolution. | biochemical and molecular analyses of genetic variation were evaluated to address the taxonomic status of nacobbus aberrans. isolates from mexico, peru, and argentina, cultured on tomato in the greenhouse, were analyzed with respect to isozyme and dna marker variation. although acid phosphatase and malate dehydrogenase revealed distinct profiles for each isolate, non-specific esterases revealed possible affinities between the peruvian isolates and between the isolates from mexico and peru. two o ... | 1997 | 19274155 |