Mapping Quantitative Trait Loci for Resistance to Fall Armyworm (Lepidoptera: Noctuidae) Leaf-Feeding Damage in Maize Inbred Mp705
| العنوان: | Mapping Quantitative Trait Loci for Resistance to Fall Armyworm (Lepidoptera: Noctuidae) Leaf-Feeding Damage in Maize Inbred Mp705 |
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| المؤلفون: | W. P. Williams, Dinakar Bhattramakki, Erika D. Womack, Marilyn L. Warburton, J S Smith |
| المصدر: | Journal of Economic Entomology. 113:956-963 |
| بيانات النشر: | Oxford University Press (OUP), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 0106 biological sciences, Quantitative Trait Loci, Population, Single-nucleotide polymorphism, Moths, Quantitative trait locus, Zea mays, 01 natural sciences, Lepidoptera genitalia, 03 medical and health sciences, Animals, Allele, education, 030304 developmental biology, Genetics, 0303 health sciences, education.field_of_study, Ecology, biology, fungi, Chromosome Mapping, food and beverages, General Medicine, biology.organism_classification, Plant Leaves, Insect Science, Noctuidae, Fall armyworm, PEST analysis, 010606 plant biology & botany |
| الوصف: | The fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), is a serious pest of maize (Zea mays L.). This migrant insect devastates maize plants in many countries threatening the livelihood of millions. In this study, quantitative trait loci (QTL) were mapped to identify chromosomal regions that control resistance to FAW leaf-feeding and to identify molecular markers linked to the target loci for use in marker-assisted selection (MAS). A bi-parental mapping population, comprising 243 F2:3 families derived from the cross Mp705 (resistant) x Mp719 (susceptible), was genotyped with 1,276 single nucleotide polymorphism (SNP) and simple sequence repeat (SSR) markers and phenotyped for FAW leaf-feeding damage after artificial infestation over three years. Major QTL were identified in bins 4.06 and 9.03 that together explained 35.7% of the phenotypic variance based on the data combined over all environments. Both parents contributed beneficial alleles, but the resistant parent, Mp705, contributed the beneficial allele for both large effect QTL and most of the small effect QTL identified in this study. The QTL in bin 9.03 co-locates with a previously identified QTL related to leaf-feeding resistance in maize by lepidopteran insects. The QTL in bin 4.06 is a novel QTL detected in this study that may offer a new source of resistance for the improvement of FAW leaf-feeding damage in maize. By identifying beneficial alleles derived from Mp705, our results open avenues for the implementation of an integrated MAS approach. Keywords: Quantitative trait loci, Mp705, maize, fall armyworm, host-plant resistance |
| تدمد: | 1938-291X 0022-0493 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf9735aa9187a804b8b25b0e7c967aaa https://doi.org/10.1093/jee/toz357 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....bf9735aa9187a804b8b25b0e7c967aaa |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1938291X 00220493 |
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