Abstract. In El Bajo Papaloapan, the main producing area of pineapple of Mexico, leaves with typical symptoms of viral infection consisting in chlorosis, flaccidity, reduced growth and reddening were collected. By RT-PCR with specific primers for the hsp70 gene and subsequent sequencing were detected Pineapple mealybug wilt virus associated-virus 1 (PMWaV-1) and Pineapple mealybug wilt virus associated-3 (PMWaV-3). From the sequences obtained a tree was done with sequences from different regions of the world available in GenBank in order to know their similarity. The sequence obtained from the Mexican isolate PMWaV-1 was genetically related
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