Genetic Mapping of Fall Armyworm Resistance in Zoysiagrass

ABSTRACT Molecular tools have not identified markers for host‐plant resistance to fall armyworm [Spodoptera frugiperda (J. E. Smith)], one of the most damaging insect pests in turfgrasses in the southeastern United States. Available quantitative trait loci (QTL) in maize (Zea mays L.) have further n...

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Bibliographic Details
Published inCrop science Vol. 51; no. 4; pp. 1774 - 1783
Main Authors Jessup, R. W., Renganayaki, K., Reinert, J. A., Genovesi, A. D., Engelke, M. C., Paterson, A. H., Kamps, T. L., Schulze, S., Howard, A. N., Giliberto, B., Burson, B. L.
Format Journal Article
LanguageEnglish
Published Madison, WI The Crop Science Society of America, Inc 01.07.2011
Crop Science Society of America
American Society of Agronomy
Subjects
Agronomy. Soil science and plant productions
Bioassays
Biological and medical sciences
Corn
Fundamental and applied biological sciences. Psychology
Gene mapping
Genes
Genetics and breeding of economic plants
Genomes
Genomics
Plant resistance
Studies
Varietal selection. Specialized plant breeding, plant breeding aims
Genetic mapping
Monocotyledones
Insecta
Spodoptera frugiperda
Zoysia
Resistance
Pest
Gramineae
Arthropoda
Angiospermae
Lepidoptera
Herbaceous plant
Spermatophyta
Noctuidae
Invertebrata
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Summary:ABSTRACT Molecular tools have not identified markers for host‐plant resistance to fall armyworm [Spodoptera frugiperda (J. E. Smith)], one of the most damaging insect pests in turfgrasses in the southeastern United States. Available quantitative trait loci (QTL) in maize (Zea mays L.) have further not been assessed for utility as comparative markers for the trait across related taxa. This study reports a linkage map of the region conferring major control of fall armyworm resistance in zoysiagrass (Zoysia spp.). One genomic simple sequence repeat (ZgAg136) and one amplified fragment length polymorphism (Zgaw216) were linked to and flanked the locus for fall armyworm resistance (Zfawr1) by 6.3 and 8.8 cM, respectively. These markers offer immediate value toward marker‐assisted selection for fall armyworm resistance in zoysiagrass and potentially across additional important crops. Nonsynteny between the fall armyworm resistance loci in zoysiagrass and maize was indicated by the absence of linkage between 38 candidate markers from maize fall armyworm resistance QTL regions and Zfawr1. As a major‐effect locus and putative novel source for fall armyworm resistance gene(s), Zfawr1 is a promising target for further investigation.
Bibliography:All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher.
ISSN:0011-183X
1435-0653
DOI:10.2135/cropsci2010.09.0553