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Quantitative Trait Locus Mapping for Common Scab Resistance in a Tetraploid Potato Full-Sib Population

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Title Quantitative Trait Locus Mapping for Common Scab Resistance in a Tetraploid Potato Full-Sib Population
 
Creator Silva Pereira, G. da
Mollinari, M.
Qu, X.
Thill, C.
Zeng, Z.B.
Haynes, K.
Yencho, G.C.
 
Subject solanum tuberosum
streptomyces
disease resistance
polyploidy
single nucleotide polymorphism
 
Description Despite the negative impact of common scab (Streptomyces spp.) on the potato industry, little is known about the genetic architecture of resistance to this bacterial disease in the crop. We evaluated a mapping population (∼150 full sibs) derived from a cross between two tetraploid potatoes (‘Atlantic’ × B1829-5) in three environments (MN11, PA11, ME12) under natural common scab pressure. Three measures to common scab reaction, namely percentage of scabby tubers and disease area and lesion indices, were found to be highly correlated (>0.76). Because of the large environmental effect, heritability values were zero for all three traits in MN11, but moderate to high in PA11 and ME12 (∼0.44 to 0.79). We identified a single quantitative trait locus (QTL) for lesion index in PA11, ME12, and joint analyses on linkage group 3, explaining ∼22 to 30% of the total variation. The identification of QTL haplotypes and candidate genes contributing to disease resistance can support genomics-assisted breeding approaches in the crop.[Formula: see text] Copyright © 2021 The Author(s). This is an open access article distributed under the CC BY 4.0 International license .
 
Date 2021-10-01
2022-04-01T00:21:52Z
2022-04-01T00:21:52Z
 
Type Journal Article
 
Identifier da Silva Pereira, G.; Mollinari, M.; Qu, X.; Thill, C.; Zeng, Z. B.; Haynes, K.; Yencho, G. C. 2021. Quantitative Trait Locus Mapping for Common Scab Resistance in a Tetraploid Potato Full-Sib Population. Plant Disease. ISSN 1943-7692. 105(10). pp. 3048–3054.
1943-7692
https://hdl.handle.net/10568/119212
https://doi.org/10.1094/pdis-10-20-2270-re
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format p. 3048-3054
 
Publisher Scientific Societies
 
Source Plant Disease