QTL analysis of late blight resistance in a diploid potato family of Solanum phureja x S. stenotomum.
Identifieur interne : 002136 ( Main/Exploration ); précédent : 002135; suivant : 002137QTL analysis of late blight resistance in a diploid potato family of Solanum phureja x S. stenotomum.
Auteurs : S. Costanzo [États-Unis] ; I. Simko ; B J Christ ; K G HaynesSource :
- TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik [ 0040-5752 ] ; 2005.
Descripteurs français
- KwdFr :
- Cartographie chromosomique (MeSH), Chromosomes de plante (génétique), Génotype (MeSH), Immunité innée (MeSH), Liaison génétique (MeSH), Locus de caractère quantitatif (génétique), Maladies des plantes (génétique), Maladies des plantes (microbiologie), Marqueurs génétiques (MeSH), Phytophthora (génétique), Polymorphisme de restriction (MeSH), Solanum tuberosum (génétique).
- MESH :
English descriptors
- KwdEn :
- Chromosome Mapping (MeSH), Chromosomes, Plant (genetics), Genetic Linkage (MeSH), Genetic Markers (MeSH), Genotype (MeSH), Immunity, Innate (MeSH), Phytophthora (genetics), Plant Diseases (genetics), Plant Diseases (microbiology), Polymorphism, Restriction Fragment Length (MeSH), Quantitative Trait Loci (genetics), Solanum tuberosum (genetics).
- MESH :
- chemical : Genetic Markers.
- genetics : Chromosomes, Plant, Phytophthora, Plant Diseases, Quantitative Trait Loci, Solanum tuberosum.
- microbiology : Plant Diseases.
- Chromosome Mapping, Genetic Linkage, Genotype, Immunity, Innate, Polymorphism, Restriction Fragment Length.
Abstract
Field resistance to Phytophthora infestans (Mont.) de Bary, the causal agent of late blight in potatoes, has been characterized in a potato segregating family of 230 full-sib progenies derived from a cross between two hybrid Solanum phureja x S. stenotomum clones. The distribution of area under the disease progress curve values, measured in different years and locations, was consistent with the inheritance of multigenic resistance. Relatively high levels of resistance and transgressive segregations were also observed within this family. A genetic linkage map of this population was constructed with the intent of mapping quantitative trait loci (QTLs) associated with this late blight field resistance. A total of 132 clones from this family were genotyped based on 162 restriction fragment length polymorphism (RFLP) markers. The genome coverage by the map (855.2 cM) is estimated to be at least 70% and includes 112 segregating RFLP markers and two phenotypic markers, with an average distance of 7.7 cM between two markers. Two methods were employed to determine trait-marker association, the non-parametric Kruskal-Wallis test and interval mapping analysis. Three major QTLs were detected on linkage group III, V, and XI, explaining 23, 17, and 10%, respectively, of the total phenotypic variation. The present study revealed the presence of potentially new genetic loci in this diploid potato family contributing to general resistance against late blight. The identification of these QTLs represents the first step toward their introgression into cultivated tetraploid potato cultivars through marker-assisted selection.
DOI: 10.1007/s00122-005-2053-1
PubMed: 15931506
Affiliations:
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The distribution of area under the disease progress curve values, measured in different years and locations, was consistent with the inheritance of multigenic resistance. Relatively high levels of resistance and transgressive segregations were also observed within this family. A genetic linkage map of this population was constructed with the intent of mapping quantitative trait loci (QTLs) associated with this late blight field resistance. A total of 132 clones from this family were genotyped based on 162 restriction fragment length polymorphism (RFLP) markers. The genome coverage by the map (855.2 cM) is estimated to be at least 70% and includes 112 segregating RFLP markers and two phenotypic markers, with an average distance of 7.7 cM between two markers. Two methods were employed to determine trait-marker association, the non-parametric Kruskal-Wallis test and interval mapping analysis. Three major QTLs were detected on linkage group III, V, and XI, explaining 23, 17, and 10%, respectively, of the total phenotypic variation. The present study revealed the presence of potentially new genetic loci in this diploid potato family contributing to general resistance against late blight. The identification of these QTLs represents the first step toward their introgression into cultivated tetraploid potato cultivars through marker-assisted selection.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15931506</PMID><DateCompleted><Year>2005</Year><Month>10</Month><Day>13</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0040-5752</ISSN><JournalIssue CitedMedium="Print"><Volume>111</Volume><Issue>3</Issue><PubDate><Year>2005</Year><Month>Aug</Month></PubDate></JournalIssue><Title>TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik</Title><ISOAbbreviation>Theor Appl Genet</ISOAbbreviation></Journal><ArticleTitle>QTL analysis of late blight resistance in a diploid potato family of Solanum phureja x S. stenotomum.</ArticleTitle><Pagination><MedlinePgn>609-17</MedlinePgn></Pagination><Abstract><AbstractText>Field resistance to Phytophthora infestans (Mont.) de Bary, the causal agent of late blight in potatoes, has been characterized in a potato segregating family of 230 full-sib progenies derived from a cross between two hybrid Solanum phureja x S. stenotomum clones. The distribution of area under the disease progress curve values, measured in different years and locations, was consistent with the inheritance of multigenic resistance. Relatively high levels of resistance and transgressive segregations were also observed within this family. A genetic linkage map of this population was constructed with the intent of mapping quantitative trait loci (QTLs) associated with this late blight field resistance. A total of 132 clones from this family were genotyped based on 162 restriction fragment length polymorphism (RFLP) markers. The genome coverage by the map (855.2 cM) is estimated to be at least 70% and includes 112 segregating RFLP markers and two phenotypic markers, with an average distance of 7.7 cM between two markers. Two methods were employed to determine trait-marker association, the non-parametric Kruskal-Wallis test and interval mapping analysis. Three major QTLs were detected on linkage group III, V, and XI, explaining 23, 17, and 10%, respectively, of the total phenotypic variation. The present study revealed the presence of potentially new genetic loci in this diploid potato family contributing to general resistance against late blight. The identification of these QTLs represents the first step toward their introgression into cultivated tetraploid potato cultivars through marker-assisted selection.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Costanzo</LastName><ForeName>S</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Department of Plant Pathology, The Pennsylvania State University, University Park, PA 16802, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Simko</LastName><ForeName>I</ForeName><Initials>I</Initials></Author><Author ValidYN="Y"><LastName>Christ</LastName><ForeName>B J</ForeName><Initials>BJ</Initials></Author><Author ValidYN="Y"><LastName>Haynes</LastName><ForeName>K G</ForeName><Initials>KG</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType 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UI="D005819" MajorTopicYN="N">Genetic Markers</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005838" MajorTopicYN="N">Genotype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007113" MajorTopicYN="N">Immunity, Innate</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010838" MajorTopicYN="N">Phytophthora</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010935" MajorTopicYN="Y">Plant Diseases</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012150" MajorTopicYN="N">Polymorphism, Restriction Fragment Length</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D040641" MajorTopicYN="N">Quantitative Trait Loci</DescriptorName><QualifierName UI="Q000235" 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Simko</name></noCountry><country name="États-Unis"><region name="Pennsylvanie"><name sortKey="Costanzo, S" sort="Costanzo, S" uniqKey="Costanzo S" first="S" last="Costanzo">S. Costanzo</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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