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Resistance levels to two strains of Potato virus Y (PVY) in transgenic potatoes cv. Achat Horticultura Brasileira
Dusi,André N.; Carvalho,César; Torres,Antônio Carlos; Ávila,Antonio Carlos de.
Two transgenic potato clones of cv. Achat, denominated 1P and 63P were challenged with two Potato virus Y strains (PVY O and PVY N), under greenhouse conditions, to be evaluated for resistance to these strains. Optical density values of the Elisa readings of samples from the transgenic plants were compared to readings from samples of the inoculated non-transformed plants. Clone 1P was extremely resistant to both PVY strains, reflected by not being systemically infected. Clone 63P, however, presented partial resistance to both PVY strains as local or systemic infection was delayed in some days. These results confirm the previously reported extreme resistance to PVY of clone 1P.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solanum tuberosum; GMO; Extreme resistance.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362001000300012
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Evaluation of a SCAR RYSC3 Marker of the Ry adg Gene to Select Resistant Genotypes to Potato Virus Y (PVY) in the INIA Potato Breeding Program Chilean J. Agric. Res.
Sagredo D,Boris; Mathias R,Mónica; Barrientos P,Claudia; Acuña B,Ivette; Kalazich B,Julio; Santos Rojas,José.
The Potato virus Y (PVY) is distributed worldwide and is one of the most damaging viruses in terms of yield reduction in the potato (Solanum tuberosum L.) crop with losses sometimes reaching 80%. To reduce its impact, there is great interest in obtaining varieties carrying the Ry adg gene that provides extreme resistance to this virus. This could be facilitated with SCAR (sequence characterized amplified region) RYSC3 by molecular marker-assisted selection (MAS). This study compared the effectiveness of the RYSC3 marker in the detection of the Ry adg gene vs. biological tests on populations of the Potato Breeding Program of the Instituto de Investigaciones Agropecuarias (INIA), Chile. Within the group of 71 progenitors, 30 plants had some kind of...
Tipo: Journal article Palavras-chave: MAS; Extreme resistance.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000300002
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