scholarly journals 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

2009 ◽  
Vol 69 (3) ◽  
Author(s):  
Boris Sagredo D ◽  
Mónica Mathias R ◽  
Claudia Barrientos P ◽  
Ivette Acuña B ◽  
Julio Kalazich B ◽  
...  
Keyword(s):  
Potato Virus ◽  
Potato Breeding ◽  
Potato Virus Y ◽  
Breeding Program ◽  
Potato Breeding Program ◽  
Resistant Genotypes

scholarly journals Detection of molecular markers linked to Ry genes in potato germplasm for marker-assisted selection for extreme resistance to PVY in AAFC’s potato breeding program

2016 ◽  
Vol 96 (5) ◽  
pp. 737-742 ◽  
Author(s):  
Xianzhou Nie ◽  
Fayruza Lalany ◽  
Virginia Dickison ◽  
Donna Wilson ◽  
Mathuresh Singh ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Potato Virus ◽  
Marker Assisted Selection ◽  
Potato Breeding ◽  
Potato Virus Y ◽  
Breeding Program ◽  
Potato Breeding Program ◽  
Extreme Resistance ◽  
Potato Germplasm ◽  
Selection For

Molecular markers reported to be linked to extreme resistance (ER) against Potato virus Y (PVY) were evaluated in potato germplasm. YES3-3A and YES3-3B, markers linked to Rysto, were detected in ‘Barbara’ and its three descendants that exhibit ER to PVY; RYSC3, a marker linked to Ryadg, was detected in breeding clones NY121 and NY123. Assessment of RYSC3 as a marker for selection for Ryadg-mediated ER validated its efficacy in identification of selections with ER to PVY.

scholarly journals Resistance of potato clones to necrotic recombinant strains of potato virus y (pvy)

2014 ◽  
Vol 38 (4) ◽  
pp. 343-351 ◽  
Author(s):  
Silvia Regina Rodrigues de Paula Ribeiro ◽  
César Augusto Brasil Pereira Pinto ◽  
Suellen Bárbara Ferreira Galvino Costa ◽  
Mariney de Menezes ◽  
Antonia dos Reis Figueira
Keyword(s):  
Molecular Marker ◽  
Potato Virus ◽  
Potato Breeding ◽  
Potato Virus Y ◽  
Resistance Allele ◽  
Potato Breeding Program ◽  
Extreme Resistance ◽  
Tobacco Plants ◽  
Resistant Allele ◽  
Recombinant Strains

The Ry adg allele is widely used by breeders to confer extreme resistance to all strains of PVY. However, the necrotic strain has increased recombination resulting in recent considerable losses in productivity. Thus far, not all necrotic recombinant strains of PVY have been tested for their reaction to the Ry gene. The objective of this study was to identify potato clones carrying the resistant allele and to assess their reaction to the following recombinant strains: NTN (PVY NTN), Wilga (PVY N-Wi), and "curly top" (PVY E). Advanced clones from the potato breeding program at Universidade Federal de Lavras were evaluated through a specific molecular marker for the Ry adg allele. The clones carrying the resistance allele were grafted on tobacco plants infected with necrotic recombinant strains of PVY. The clones carrying the allele for resistance to PVY were not infected with any of the recombinants during the grafting test. These results confirm that resistance to necrotic recombinant strains has not yet been overcome and that the Ry adg allele also confers resistance to the three recombinant strains tested.

Validation and Implementation of Marker-Assisted Selection (MAS) for PVY Resistance (Ry adg gene) in a Tetraploid Potato Breeding Program

2009 ◽  
Vol 86 (4) ◽  
pp. 304-314 ◽  
Author(s):  
Ryon J. Ottoman ◽  
Dan C. Hane ◽  
Charles R. Brown ◽  
Solomon Yilma ◽  
Steven R. James ◽  
...  
Keyword(s):  
Marker Assisted Selection ◽  
Potato Breeding ◽  
Breeding Program ◽  
Potato Breeding Program ◽  
Tetraploid Potato ◽  
Pvy Resistance
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