Mapping of resistance to corn borers in a MAGIC population of maize
Abstract Background Corn borers constitute an important pest of maize around the world; in particular Sesamia nonagrioides Lefèbvre, named Mediterranean corn borer (MCB), causes important losses in Southern Europe. Methods of selection can be combined with transgenic approaches to increase the effic...
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doaj-5790c0b793524464b0b7f56754765fd42020-11-25T01:40:32ZengBMCBMC Plant Biology1471-22292019-10-0119111710.1186/s12870-019-2052-zMapping of resistance to corn borers in a MAGIC population of maizeJosé Cruz Jiménez-Galindo0Rosa Ana Malvar1Ana Butrón2Rogelio Santiago3Luis Fernando Samayoa4Marlon Caicedo5Bernardo Ordás6Misión Biológica de Galicia, Spanish National Research Council (CSIC)Misión Biológica de Galicia, Spanish National Research Council (CSIC)Misión Biológica de Galicia, Spanish National Research Council (CSIC)Departamento Biología Vegetal y Ciencias del Suelo, Unidad Asociada BVE1-UVIGO y MBG (CSIC), Facultad de Biología, Universidad de VigoNorth Carolina State UniversityInstituto Nacional de Investigaciones Agropecuarias (INIAP)Misión Biológica de Galicia, Spanish National Research Council (CSIC)Abstract Background Corn borers constitute an important pest of maize around the world; in particular Sesamia nonagrioides Lefèbvre, named Mediterranean corn borer (MCB), causes important losses in Southern Europe. Methods of selection can be combined with transgenic approaches to increase the efficiency and durability of the resistance to corn borers. Previous studies of the genetic factors involved in resistance to MCB have been carried out using bi-parental populations that have low resolution or using association inbred panels that have a low power to detect rare alleles. We developed a Multi-parent Advanced Generation InterCrosses (MAGIC) population to map with high resolution the genetic determinants of resistance to MCB. Results We detected multiple single nucleotide polymorphisms (SNPs) of low effect associated with resistance to stalk tunneling by MCB. We dissected a wide region related to stalk tunneling in multiple studies into three smaller regions (at ~ 150, ~ 155, and ~ 165 Mb in chromosome 6) that closely overlap with regions associated with cell wall composition. We also detected regions associated with kernel resistance and agronomic traits, although the co-localization of significant regions between traits was very low. This indicates that it is possible the concurrent improvement of resistance and agronomic traits. Conclusions We developed a mapping population which allowed a finer dissection of the genetics of maize resistance to corn borers and a solid nomination of candidate genes based on functional information. The population, given its large variability, was also adequate to map multiple traits and study the relationship between them.http://link.springer.com/article/10.1186/s12870-019-2052-zMaizeMediterranean corn borerSesamia nonagrioidesResistanceMapping with multi-parent advanced generation InterCrosses (MAGIC) populationsQuantitative trait loci (QTL) |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
José Cruz Jiménez-Galindo Rosa Ana Malvar Ana Butrón Rogelio Santiago Luis Fernando Samayoa Marlon Caicedo Bernardo Ordás |
spellingShingle |
José Cruz Jiménez-Galindo Rosa Ana Malvar Ana Butrón Rogelio Santiago Luis Fernando Samayoa Marlon Caicedo Bernardo Ordás Mapping of resistance to corn borers in a MAGIC population of maize BMC Plant Biology Maize Mediterranean corn borer Sesamia nonagrioides Resistance Mapping with multi-parent advanced generation InterCrosses (MAGIC) populations Quantitative trait loci (QTL) |
author_facet |
José Cruz Jiménez-Galindo Rosa Ana Malvar Ana Butrón Rogelio Santiago Luis Fernando Samayoa Marlon Caicedo Bernardo Ordás |
author_sort |
José Cruz Jiménez-Galindo |
title |
Mapping of resistance to corn borers in a MAGIC population of maize |
title_short |
Mapping of resistance to corn borers in a MAGIC population of maize |
title_full |
Mapping of resistance to corn borers in a MAGIC population of maize |
title_fullStr |
Mapping of resistance to corn borers in a MAGIC population of maize |
title_full_unstemmed |
Mapping of resistance to corn borers in a MAGIC population of maize |
title_sort |
mapping of resistance to corn borers in a magic population of maize |
publisher |
BMC |
series |
BMC Plant Biology |
issn |
1471-2229 |
publishDate |
2019-10-01 |
description |
Abstract Background Corn borers constitute an important pest of maize around the world; in particular Sesamia nonagrioides Lefèbvre, named Mediterranean corn borer (MCB), causes important losses in Southern Europe. Methods of selection can be combined with transgenic approaches to increase the efficiency and durability of the resistance to corn borers. Previous studies of the genetic factors involved in resistance to MCB have been carried out using bi-parental populations that have low resolution or using association inbred panels that have a low power to detect rare alleles. We developed a Multi-parent Advanced Generation InterCrosses (MAGIC) population to map with high resolution the genetic determinants of resistance to MCB. Results We detected multiple single nucleotide polymorphisms (SNPs) of low effect associated with resistance to stalk tunneling by MCB. We dissected a wide region related to stalk tunneling in multiple studies into three smaller regions (at ~ 150, ~ 155, and ~ 165 Mb in chromosome 6) that closely overlap with regions associated with cell wall composition. We also detected regions associated with kernel resistance and agronomic traits, although the co-localization of significant regions between traits was very low. This indicates that it is possible the concurrent improvement of resistance and agronomic traits. Conclusions We developed a mapping population which allowed a finer dissection of the genetics of maize resistance to corn borers and a solid nomination of candidate genes based on functional information. The population, given its large variability, was also adequate to map multiple traits and study the relationship between them. |
topic |
Maize Mediterranean corn borer Sesamia nonagrioides Resistance Mapping with multi-parent advanced generation InterCrosses (MAGIC) populations Quantitative trait loci (QTL) |
url |
http://link.springer.com/article/10.1186/s12870-019-2052-z |
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