Improving resistance to the European corn borer: a comprehensive study in elite maize using QTL mapping and genome-wide prediction

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Flavio FoiadaChris-Carolin Schön

Abstract

The efficiency of marker-assisted selection for native resistance to European corn borer stalk damage can be increased when progressing from a QTL-based towards a genome-wide approach. Marker-assisted selection (MAS) has been shown to be effective in improving resistance to the European corn borer (ECB) in maize. In this study, we investigated the performance of whole-genome-based selection, relative to selection based on individual quantitative trait loci (QTL), for resistance to ECB stalk damage in European elite maize. Three connected biparental populations, comprising 590 doubled haploid (DH) lines, were genotyped with high-density single nucleotide polymorphism markers and phenotyped under artificial and natural infestation in 2011. A subset of 195 DH lines was evaluated in the following year as lines per se and as testcrosses. Resistance was evaluated based on stalk damage ratings, the number of feeding tunnels in the stalk and tunnel length. We performed individual- and joint-population QTL analyses and compared the cross-validated predictive abilities of the QTL models with genomic best linear unbiased prediction (GBLUP). For all traits, the GBLUP model consistently outperformed the QTL model despite the detection of QT...Continue Reading

References

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Citations

Dec 15, 2015·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Sen HanAlbrecht E Melchinger
Aug 2, 2015·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Pascal SchoppAlbrecht E Melchinger
Feb 23, 2017·Annual Review of Plant Biology·Christos BazakosOlivier Loudet
Sep 27, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Vijay ChaikamPrasanna M Boddupalli
Dec 7, 2018·PloS One·Md Mamun MonirMd Nurul Haque Mollah
Oct 19, 2019·BMC Plant Biology·José Cruz Jiménez-GalindoBernardo Ordás
Aug 17, 2018·BMC Plant Biology·José Cruz Jiménez-GalindoBernardo Ordás

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