2014
DOI: 10.1590/s1982-56762014000100013
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Genetic diversity studies of Papaya meleira virus

Abstract: Papaya (Carica papaya) is a fruit crop of great economic and social importance for Brazil and other papaya-producing countries. Brazil is the second largest producer in the world. The papaya sticky disease, caused by Papaya meleira virus (PMeV), has caused great losses in the major Brazilian papaya-producing states. In order to estimate the genetic diversity of PMeV, latex samples were collected from papaya plants in the states of Bahia, Espírito Santo, Pernambuco, Ceará and Rio Grande do Norte, and total RNA … Show more

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Cited by 10 publications
(10 citation statements)
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“…Furthermore, this finding may explain how this virus came to Mexico even though no PMeV has been detected in any other country in Central or South America. This conclusion is consistent with the hypothesis of Daltro et al (2014), who suggested, due to its recent detection in Mexico, that PMeV could be transmitted through seeds. In this work, the reduced percentage germination observed in the seeds from PMeV-positive fruits was associated with the presence of the virus in the seeds, as all other factors that could have influenced this process were held constant for each group.…”
Section: Discussionsupporting
confidence: 93%
See 1 more Smart Citation
“…Furthermore, this finding may explain how this virus came to Mexico even though no PMeV has been detected in any other country in Central or South America. This conclusion is consistent with the hypothesis of Daltro et al (2014), who suggested, due to its recent detection in Mexico, that PMeV could be transmitted through seeds. In this work, the reduced percentage germination observed in the seeds from PMeV-positive fruits was associated with the presence of the virus in the seeds, as all other factors that could have influenced this process were held constant for each group.…”
Section: Discussionsupporting
confidence: 93%
“…This conclusion is consistent with the hypothesis of Daltro et al . (), who suggested, due to its recent detection in Mexico, that PMeV could be transmitted through seeds.…”
Section: Discussionmentioning
confidence: 99%
“…Analysis of variation in 6 PMeV isolates from different states in Brazil showed that 2 isolates, PMeV-2 and PMeV-23, exhibited 22 and 26% nucleotide divergence within the 669-bp sequence (Daltro et al, 2010). Recently, a larger study showed that 31 PMeV isolates diverged by up to 12% in the same region (Daltro et al, 2014). These results provide a strong correlation for PMeV as the causal agent of the Mexican disease, and also provide molecular evidence to support the first report of PMeV in Mexico (Perez-Brito et al, 2012).…”
Section: Discussionmentioning
confidence: 62%
“…PMeV has not been sequenced nor classified by the International Committee on the Taxonomy of Viruses (ICTV). A comparative analysis of a ~560 bp fragment amplified from the PMeV replicase gene from the major Brazilian papaya-producing states isolates indicated that PMeV possesses a similarity with the mycoviruses of the family Totiviridae [ 12 , 13 ]. However, a conclusive taxonomic classification will only be possible when the full genome is sequenced.…”
Section: Papaya Meleira Virusmentioning
confidence: 99%
“…Sticky disease spreads rapidly, and currently it occurs mostly in Northeast Brazil [ 12 ]. Outside Brazil, Mexico is the only other country where the disease was reported [ 11 ]; at this time, the virus continues its dissemination and it has been detected in all producer states and its incidence in papaya orchards has been increasing.…”
Section: Epidemiologymentioning
confidence: 99%