Research article
Gene expression analyses in maize inbreds and hybrids with varying levels of heterosis
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* Corresponding author: Nathan M Springer springer@umn.edu
1 Center for Plant and Microbial Genomics, Department of Plant Biology, University of Minnesota, Saint Paul MN 55108, USA
2 Department of Plant Science, and BIO5 Institute, University of Arizona, Tucson, AZ 85721, USA
3 Department of Agronomy and Plant Genetics, University of Minnesota, Saint Paul MN 55108, USA
BMC Plant Biology 2008, 8:33 doi:10.1186/1471-2229-8-33
Published: 10 April 2008Additional files
Additional file 1:
Phenotypic measurements for five traits in 15 inbreds and 25 hybrids.
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Additional file 2:
Genetic distance between inbreds and BPH values for hybrids. Nei SNP genetic distance values are shown for 21 inbred pairwise comparisons. BPH for five traits are also shown for the 21 corresponding hybrids, and four other hybrid combinations.
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Additional file 3:
Pearson's R values for genotype BPH among traits. Correlations of BPH across the five traits are given. The primary data used to compute these correlations are given in Additional files 1 and 2.
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Additional file 4:
Clustering analysis of differentially expressed genes. Clustering analysis to compare inbred-hybrid expression patterns.
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Additional file 5:
Distribution of d/a ratios for specific sub-groups. Comparison of d/a distributions for specific subsets of genes.
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Additional file 6:
Estimate of microarray signal variation between biological replicates of each genotype on the Affymetrix and 70-mer oligonucleotide microarray platforms.
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Additional file 7:
d/a values across genotypes for genes identified as AHP or BLP in at least one hybrid using liberal criteria. The d/a values for each of the six hybrid genotypes are shown for genes exhibiting AHP or BLP in at least one hybrid. This display is used to identify genes with consistent patterns of AHP or BLP expression across hybrids, based on Affymetrix data. Cross-validation data from the spotted microarray and real-time PCR platforms are also shown.
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Additional file 8:
Clustering analysis of genes with AHP and BLP profiles. Comparison of AHP and BLP profiles across multiple hybrid genotypes.
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