01998naa a2200265 a 450000100080000000500110000800800410001902400420006010000160010224501070011826000090022550001230023452011370035765000110149465000220150565000100152765000230153765000190156065300130157970000170159270000230160970000240163270000190165677300570167518644892022-08-22       2010    bl uuuu     u00u1 u    #d7 a10.1111/j.1365-3059.2009.02221.x2DOI1 aDITA, M. A.  aA molecular diagnostic for tropical race 4 of the banana fusarium wilt pathogenh[electronic resource]  c2010  aDisponível em: &lthttp://onlinelibrary.wiley.com/doi/10.1111/j.1365-3059.2009.02221.x/pdf&gt Acesso em: 26 out. 2010.  aThis study analysed genomic variation of the translation elongation factor 1a (TEF-1a) and the intergenic spacer region (IGS) of the nuclear ribosomal operon of Fusarium oxysporum f. sp. cubense (Foc) isolates, from different banana production areas, representing strains within the known races, comprising 20 vegetative compatibility groups (VCG). Based on two single nucleotide polymorphisms present in the IGS region, a PCR-based diagnostic tool was developed to specifically detect isolates from VCG 01213, also called tropical race 4 (TR4), which is currently a major concern in global banana production. Validation involved TR4 isolates, as well as Foc isolates from 19 other VCGs, other fungal plant pathogens and DNA samples from infected tissues of the Cavendish banana cultivar Grand Naine (AAA). Subsequently, a multiplex PCR was developed for fungal or plant samples that also discriminated Musa acuminata and M. balbisiana genotypes. It was concluded that this diagnostic procedure is currently the best option for the rapid and reliable detection and monitoring of TR4 to support eradication and quarantine strategies.  aBanana  aDoença de Planta  aFungo  aFusarium Oxysporum  aMal do Panamá  aMusa spp1 aWAALWIJK, C.1 aBUDDENHAGEN, I. M.1 aSOUZA JUNIOR, M. T.1 aKEMA, G. H. J.  tPlant Pathology, Dordrechtgv. 59, p. 348?357, 2010.