Tracking Foliar Symptoms Caused by Tuber-Borne Potato Yellow Vein Virus (PYVV) in Solanum Phureja (Juz et Buk) Cultivar “Criolla Colombia”

Molecular insights on potato yellow vein crinivirus infections in the highlands of Colombia

“…In two S. phureja plants, symptom remission was observed (), demonstrating that the occurrence of recovery phenotypes and asymptomatic infections in this species is possible. As had been shown previously, plants showing PYVV were able to transmit PYVV to daughter plants by vertical transmission through tubers [7], but in some cases infected mother plants gave rise to non-syntomatic progeny plants. In studies performed on Potato virus X (PVX, genus Potexvirus ), Potato andean mottle virus (APMoV, Comovirus ), PVY (genus Potyvirus ) jointly with PVX and PLRV Potato leafroll virus (PLRV, genus Polerovirus ), incomplete autoinfection was observed in all cases.…”

“…PYVD causes important losses to potato crops in the Andean region, and is associated ith PYVV. In this pathosystem, in addition to fully symptomatic plants, the existence of infected, asymptomatic field plants whose tuber production is not affected has previously been reported [1, 3, 7]. In addition, mixed viral infections involving PYVV appear to be very abundant in S. tuberosum fields in the Antioquia department of Colombia [24].…”

“…The only known vector of PYVV is the greenhouse whitefly, Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae) [1, 4], but it can also be transmitted through infected seed-tubers [1, 5]. It has also been reported that in the field, a proportion of the infected plants may not display symptoms [1, 7, 8] and that yields of such plants are not reduced [3].…”

A temperature-driven model for potato yellow vein virus transmission efficacy by Trialeurodes vaporariorum (Hemiptera: Aleyrodidae)

“…2 d–f, supplementary Fig 5). We consider this a good correlation, bearing in mind that the virus can also be transmitted by infected seed tubers, which is likely to be a major contributor to virus spread and could cause virus to be present in areas not due to vector transmission ( Cuadros et al, 2017 ; Guzmán-Barney et al, 2013 ).…”

Variant evidence of three genes of Potato vein yellow virus infecting Solanum tubersosum sp. using single strand conformational polymorphism.

“…PYVV has a tripartite single stranded RNA genome with positive polarity and is limited to the plant phloem (Salazar et al, 2000;Livieratos et al, 2004). It is the causal agent of potato vein yellow disease (PYVD) (Salazar et al, 2000), and affects different potato varieties in Andean countries, such as Colombia, Peru, Venezuela, and Ecuador (Salazar et al, 2000) causing losses of 25-50 % in yield (Salazar, 1998;Zapata et al, 2004;Guzmán-Barney et al, 2012;Guzmán-Barney et al, 2013).…”