Quantitative Trait Loci for Resistance to Common Scab and Cold-Induced Sweetening in Diploid Potato
The development of germplasm with resistance to common scab and cold-induced sweetening is a high priority for the potato ( L.) industry. A mapping population was developed from mating two individuals of a diploid family generated by crossing the susceptible cultivated potato clone US-W4 to the high...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Wiley
2017-11-01
|
Series: | The Plant Genome |
Online Access: | https://dl.sciencesocieties.org/publications/tpg/articles/10/3/plantgenome2016.10.0110 |
id |
doaj-e0f7cac622764cd0b9b746ee26909805 |
---|---|
record_format |
Article |
spelling |
doaj-e0f7cac622764cd0b9b746ee269098052020-11-25T03:02:26ZengWileyThe Plant Genome1940-33722017-11-0110310.3835/plantgenome2016.10.0110Quantitative Trait Loci for Resistance to Common Scab and Cold-Induced Sweetening in Diploid PotatoSarah R. BraunJeffrey B. EndelmanKathleen G. HaynesShelley H. JanskyThe development of germplasm with resistance to common scab and cold-induced sweetening is a high priority for the potato ( L.) industry. A mapping population was developed from mating two individuals of a diploid family generated by crossing the susceptible cultivated potato clone US-W4 to the highly resistant wild relative ( Bitter) clone ‘524–8’. Progeny were evaluated in replicated field trials. Tubers were scored for percentage of surface area with scab lesions, scab lesion type, cold-induced sweetening, average tuber weight, and dry matter. Plants were evaluated for vine maturity. A genetic map was constructed, quantitative trait loci (QTLs) were identified, and the gene action of significant QTLs was characterized using 1606 single nucleotide polymorphisms (SNPs). Significant QTLs for common scab percentage of surface area covered with lesions and lesion type were identified in overlapping regions on chromosome 11 ( = 21.0 and 18.2%, respectively). Quantitative trait loci were identified on chromosomes 4 ( = 17.1%) and 6 ( = 19.4%) for cold-induced sweetening, chromosome 5 for maturity ( = 29.8%), and chromosome 1 ( = 26.3 and 22.0%) for average tuber weight. Identification of QTLs is the first step toward developing molecular markers for breeders to efficiently integrate these desirable traits into cultivars.https://dl.sciencesocieties.org/publications/tpg/articles/10/3/plantgenome2016.10.0110 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sarah R. Braun Jeffrey B. Endelman Kathleen G. Haynes Shelley H. Jansky |
spellingShingle |
Sarah R. Braun Jeffrey B. Endelman Kathleen G. Haynes Shelley H. Jansky Quantitative Trait Loci for Resistance to Common Scab and Cold-Induced Sweetening in Diploid Potato The Plant Genome |
author_facet |
Sarah R. Braun Jeffrey B. Endelman Kathleen G. Haynes Shelley H. Jansky |
author_sort |
Sarah R. Braun |
title |
Quantitative Trait Loci for Resistance to Common Scab and Cold-Induced Sweetening in Diploid Potato |
title_short |
Quantitative Trait Loci for Resistance to Common Scab and Cold-Induced Sweetening in Diploid Potato |
title_full |
Quantitative Trait Loci for Resistance to Common Scab and Cold-Induced Sweetening in Diploid Potato |
title_fullStr |
Quantitative Trait Loci for Resistance to Common Scab and Cold-Induced Sweetening in Diploid Potato |
title_full_unstemmed |
Quantitative Trait Loci for Resistance to Common Scab and Cold-Induced Sweetening in Diploid Potato |
title_sort |
quantitative trait loci for resistance to common scab and cold-induced sweetening in diploid potato |
publisher |
Wiley |
series |
The Plant Genome |
issn |
1940-3372 |
publishDate |
2017-11-01 |
description |
The development of germplasm with resistance to common scab and cold-induced sweetening is a high priority for the potato ( L.) industry. A mapping population was developed from mating two individuals of a diploid family generated by crossing the susceptible cultivated potato clone US-W4 to the highly resistant wild relative ( Bitter) clone ‘524–8’. Progeny were evaluated in replicated field trials. Tubers were scored for percentage of surface area with scab lesions, scab lesion type, cold-induced sweetening, average tuber weight, and dry matter. Plants were evaluated for vine maturity. A genetic map was constructed, quantitative trait loci (QTLs) were identified, and the gene action of significant QTLs was characterized using 1606 single nucleotide polymorphisms (SNPs). Significant QTLs for common scab percentage of surface area covered with lesions and lesion type were identified in overlapping regions on chromosome 11 ( = 21.0 and 18.2%, respectively). Quantitative trait loci were identified on chromosomes 4 ( = 17.1%) and 6 ( = 19.4%) for cold-induced sweetening, chromosome 5 for maturity ( = 29.8%), and chromosome 1 ( = 26.3 and 22.0%) for average tuber weight. Identification of QTLs is the first step toward developing molecular markers for breeders to efficiently integrate these desirable traits into cultivars. |
url |
https://dl.sciencesocieties.org/publications/tpg/articles/10/3/plantgenome2016.10.0110 |
work_keys_str_mv |
AT sarahrbraun quantitativetraitlociforresistancetocommonscabandcoldinducedsweeteningindiploidpotato AT jeffreybendelman quantitativetraitlociforresistancetocommonscabandcoldinducedsweeteningindiploidpotato AT kathleenghaynes quantitativetraitlociforresistancetocommonscabandcoldinducedsweeteningindiploidpotato AT shelleyhjansky quantitativetraitlociforresistancetocommonscabandcoldinducedsweeteningindiploidpotato |
_version_ |
1724689562771390464 |