Genetic analysis of oviposition deterrence to orange wheat blossom midge in spring wheat.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Dinushika ThambugalaCurt A McCartney

Abstract

A major QTL for oviposition deterrence to orange wheat blossom midge was detected on chromosome 1A in the Canadian breeding line BW278 that was inherited from the Chinese variety Sumai-3. Orange wheat blossom midge (OWBM, Sitodiplosis mosellana Géhin, Diptera: Cecidomyiidae) is an important insect pest of wheat (Triticum aestivum L.) that reduces both grain yield and quality. Oviposition deterrence results in a reduction of eggs deposited on spikes relative to that observed on a wheat line preferred by OWBM. Quantification of oviposition deterrence is labor-intensive, so wheat breeders require efficient DNA markers for the selection of this trait. The objective of this study was to identify quantitative trait loci (QTL) for oviposition deterrence in a doubled haploid (DH) population developed from the spring wheat cross Superb/BW278. The DH population and check varieties were evaluated for OWBM kernel damage from five field nurseries over three growing seasons. QTL analysis identified major effect loci on chromosomes 1A (QSm.mrc-1A) and 5A (QSm.mrc-5A). Reduced kernel damage was contributed by BW278 at QSm.mrc-1A and Superb at QSm.mrc-5A. QSm.mrc-1A mapped to the approximate location of the oviposition deterrence QTL previously...Continue Reading

References

Nov 7, 2007·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Huihui LiJiankang Wang
Mar 19, 2008·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik· SrinivasacharyP Nicholson
May 1, 2013·Proceedings of the National Academy of Sciences of the United States of America·Colin R CavanaghEduard Akhunov
May 8, 2013·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·A KamranD Spaner
Jun 7, 2014·Frontiers in Plant Science·Christine ZankeMarion S Röder
May 11, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Mulualem T KassaCurt A McCartney
Aug 18, 2018·Science·UNKNOWN International Wheat Genome Sequencing Consortium (IWGSC)Cristobal Uauy
Sep 11, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Zhiming HaoGuiru Liu
Nov 28, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Lijing ZhangRuihui Wang

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Methods Mentioned

BETA
dissection
genotyping

Software Mentioned

lme4
GenomeStudio
R
IciMapping
META
QTL IciMapping
Multi Environment Trial Analysis with R ( META - R )
MapDisto

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