QTL analysis for aphid resistance and growth traits in apple

Publication Overview
TitleQTL analysis for aphid resistance and growth traits in apple
AuthorsStoeckli S, Mody K, Gessler C, Patocchi A, Jermini M, Dorn S
TypeJournal Article
Journal NameTree Genetics and Genomes
Volume4
Issue4
Year2008
Page(s)833-847
CitationStoeckli S, Mody K, Gessler C, Patocchi A, Jermini M, Dorn S. QTL analysis for aphid resistance and growth traits in apple. Tree Genetics and Genomes. 2008; 4(4):833-847.

Abstract

The rosy apple aphid (Dysaphis plantaginea), the leaf-curling aphid (Dysaphis cf. devecta) and the green apple aphid (Aphis pomi) are widespread pest insects that reduce growth of leaves, fruits and shoots in apple (Malus × domestica). Aphid control in apple orchards is generally achieved by insecticides, but alternative management options like growing resistant cultivars are needed for a more sustainable integrated pest management (IPM). A linkage map available for a segregating F1-cross of the apple cultivars ‘Fiesta’ and ‘Discovery’ was used to investigate the genetic basis of resistance to aphids. Aphid infestation and plant growth characteristics were repeatedly assessed for the same 160 apple genotypes in three different environments and 2 consecutive years. We identified amplified fragment length polymorphism (AFLP) markers linked to quantitative trait loci (QTLs) for resistance to D. plantaginea (‘Fiesta’ linkage group 17, locus 57.7, marker E33M35–0269; heritability: 28.3%), and to D. cf. devecta (‘Fiesta’ linkage group 7, locus 4.5, marker E32M39–0195; heritability: 50.2%). Interactions between aphid species, differences in climatic conditions and the spatial distribution of aphid infestation were identified as possible factors impeding the detection of QTLs. A pedigree analysis of simple sequence repeat (SSR) marker alleles closely associated with the QTL markers revealed the presence of the alleles in other apple cultivars with reported aphid resistance (‘Wagener’, ‘Cox’s Orange Pippin’), highlighting the genetic basis and also the potential for gene pyramiding of aphid resistance in apple. Finally, significant QTLs for shoot length and stem diameter were identified, while there was no relationship between aphid resistance and plant trait QTLs.
Projects
This publication contains information about 1 projects:
Project NameDescription
Aphid resistance and growth traits-Mody-2008
Features
This publication contains information about 13 features:
Feature NameUniquenameType
stem diameterqSTDIA.FD-ch1.Ticino year1QTL
stem diameterqSTDIA.FD-ch13.Ticino year1QTL
stem diameterqSTDIA.FD-ch14.Valais year2QTL
stem lengthqSTL.FD-ch7.Ticino year1QTL
resistance to Dysaphis cf. devectaqRDD.FD-ch7.Ticino year1QTL
resistance to Dysaphis cf. devectaqRDD.FD-ch7.Ticino year2QTL
resistance to Dysaphis cf. devectaqRDD.FD-ch7.Valais year1QTL
resistance to Dysaphis cf. devectaqRDD.FD-ch7.Valais year2QTL
resistance to Dysaphis plantagineaqRDP.FD-ch17.Ticino year1QTL
resistance to Dysaphis plantagineaqRDP.FD-ch17.Ticino year2QTL
resistance to Dysaphis plantagineaqRDP.FD-ch17.Valais year1QTL
resistance to Dysaphis plantagineaqRDP.FD-ch17.Valais year2QTL
resistance to Dysaphis plantagineaqRDP.FD-ch17.Zurich year1QTL
Featuremaps
This publication contains information about 3 maps:
Map Name
Apple-FD-F1-2006
Apple-FD-Fiesta-F1-2003
Apple-FD-Discovery-F1-2003
Properties
Additional details for this publication include:
Property NameValue
URLhttps://link.springer.com/article/10.1007/s11295-008-0156-y