Iowa State University
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Phenotypic data of nitrogen use efficiency related traits and genotypic data of BGEM lines

posted on 2023-08-28, 21:20 authored by Thomas Lubberstedt, Darlene L. Sanchez, Alice SantanaAlice Santana

These data set (phenotypic and genotypic data) can be used in the genetics and plant breeding area. Currently, many projects have been using analyzes that associate the phenotype of interest with the genotype. Thus, it allows identifying possible regions of the genome that have the greatest effect on the trait. Our data comprise 181 doubled haploid (DH) lines derived from crosses between landraces from the Germplasm Enhancement of Maize (BGEM lines) project and two inbreds, PHB47 and PHZ51. These DH lines were genotyped using 62,077 molecular markers (single nucleotide polymorphisms - SNPs) using genotyping-by-sequencing (GBS). The same lines from the per se trials were used as parental lines for the testcross field trials. Plant height (PHT, cm), days to female flowering (SLK, days), days to male flowering (ANT, days), anthesis to silking interval (ASI), and grain yield (YLD, tons per hectare) were collected from high (HN) and low N (LN) conditions in two environments for testcrosses (Ames 2015B, Nashua 2015) and three environments for per se trials (Ames 2014, Ames 2015 and Nashua 2015). Our data might be used for Genome Wide Association Studies (GWAS) and Selection (GWS). Furthermore, molecular characterization and genetic diversity might be performed.


Funding for this work was provided by USDA’s National Institute of Food and Agriculture (NIFA) Project, No. IOW04314, IOW01018, and IOW05510; and NIFA award 2018-51181-28419. Funding for this work was also provided by the R.F. Baker Center for Plant Breeding, Plant Sciences Institute, and K.J. Frey Chair in Agronomy at Iowa State University.


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