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RT-qPCR data. Table 1. Cucurbit yellow stunting disorder virus symptom severity (foliar yellowing) and titer in susceptible ‘Top Mark’, resistant PI 313970, and F 2:3 Top Mark × PI 313970 population; Imperial Valley, CA, 2018 and 2019. RT-qPCR and

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separations (Student's t test) using JMP 8.0.1 (SAS Institute, Cary, NC). Table 1. Rating scales used for evaluation of foliar symptoms of Cucurbit yellow stunting disorder virus in naturally infected field tests in 2007, 2008, and 2009, Holtville, CA. z

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Forty-four accessions of Cucumis melo L. and related wild species were tested for reaction to a yellowing disease, incited by the recently identified cucurbit yellowing stunting disorder virus (CYSDV), under natural and controlled-inoculation conditions. The C. melo TGR-1551 accession and one Cucumis metuliferus Naud. accession were asymptomatic. The segregation ratios obtained following controlled inoculations of the family produced by crossing TGR-1551 with the susceptible Spanish cv. Piel de Sapo revealed that the resistance to CYSDV in TGR-1551 is conditioned by a dominant allele at one locus. The name Cucurbit yellow stunting and symbol Cys is proposed for this locus.

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mildew incited by Podosphaera xanthii (Castagne) U. Braun & N. Shishkoff ( Shishkoff, 2000 ) and the yellowing incited by Cucurbit yellow stunting disorder virus (CYSDV) and the incidence of the cotton-melon aphid, Aphis gossypii are three of the

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Crinivirus , as revealed by determination of the complete RNA genome sequence of Cucurbit yellow stunting disorder virus J. Gen. Virol. 84 2555 2564 https://doi.org/10.1099/vir.0.19209-0 Akad, F. Webb, S. Nyoike, T.W. Liburd, O.E. Turechek, W

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highest resistance to PRSV-W, but it had intermediate resistance to ZYMV in our study. Finally, PI 386015 and PI 386016 were reported to be resistant to cucurbit yellow stunting disorder virus (CYSDV) by Lecoq et al. (1998) , and they were resistant to

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resistance of PI 313970 to CuLCrV; it has partial resistance to SPW- B ( Boissot et al., 2003 ). Partial resistance to SPW-B in melon accession TGR-1551 did not, however, affect the resistance of TGR-1551 to Cucurbit yellow stunting disorder virus ( López

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diseases such as TYLC. TYLC is caused by tomato yellow leaf curl virus (TYLCV) ( Riley and Srinivasan 2019 ) and vectored by the sweetpotato whitefly [ Bemisia tabaci (Gennadius)]. In tropical and subtropical areas, elevated temperatures inside the HT

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Cucurbit yellow stunting disorder virus HortScience 46 1582 1587 Molinar, R.H. 2012 Evaluation of Central Asian melon varieties in the San Joaquin Valley J. Amer. Pomol. Soc. 66 122 124 Nakata, E. Staub, J.E. López-Sesé, A. Katzir, N. 2005 Genetic diversity

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resources of the genus Cucumis and their morphological description HortScience 30 14 42 Lopez-Sese, A.I. Gomez-Guillamon, M.L. 2000 Resistance to Cucurbit yellowing stunting disorder virus (CYSDV) in Cucumis melo L HortScience 35 110 113 McCarthy, W

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