Combined Linkage and Association Mapping Reveals QTL and Candidate Genes for Plant and Ear Height in Maize.

ABSTRACT: Plant height (PH) and ear height (EH) are two very important agronomic traits related to the population density and lodging in maize. In order to better understand of the genetic basis of nature variation in PH and EH, two bi-parental populations and one genome-wide association study (GWAS) population were used to map quantitative trait loci (QTL) for both traits. Phenotypic data analysis revealed a wide normal distribution and high heritability for PH and EH in the three populations, which indicated that maize height is a highly polygenic trait. A total of 21 QTL for PH and EH in three common genomic regions (bin 1.05, 5.04/05, and 6.04/05) were identified by QTL mapping in the two bi-parental populations under multiple environments. Additionally, 41 single nucleotide polymorphisms (SNPs)

SUBMITTER: Li X 

PROVIDER: S-EPMC4908132 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature