Validation of QTLs associated with corn borer resistance and grain yield: implications in maize breeding.

ABSTRACT:

Introduction

Validations of previously detected quantitative trait loci (QTLs) to assess their reliability are crucial before implementing breeding programs. The objective of this study was to determine the reliability and practical usefulness of previously reported QTLs for resistance to stem tunneling by the Mediterranean stem borer (MSB) and yield. These authors used approximately 600 recombinant inbred lines (RILs) from a multiparent advanced generation intercross (MAGIC) population to map QTL using a genome-wide association study (GWAS) approach.

Methods

We identified RILs situated at the extremes of resistance and yield distributions within the whole MAGIC, and those QTLs were evaluated per se and crossed to a tester (A638) using lattice designs. In each set, a

SUBMITTER: Lopez-Malvar A 

PROVIDER: S-EPMC11536317 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature