Therefore, similarity between SF and OG cannot be interpreted without an understanding of background variation in OG.
Variations of water concentration and temperature at the peaks are less clear, likely because of a larger background variation.
Consequently, background variation will add bias for different regions of the same image to disturb the ridge/valley contrast.
Furthermore, this investigation aimed to propose statistical strategies for analysing this background variation by testing ANOVA (Analysis of variance) and ANCOVA (Analysis of covariance).
In the RNM, the microarray data were normalised using signals of the k nearest neighbour (kNN) empty spots to compensate for localised background variation.
The goal of our analysis is to distinguish the latter from many sources of background variation, such as brush, roads, forest, large rock formations and other natural anomalies.
To assess the relative importance of these sources of background variation, we generated replicate gene expression profiles on high-density Affymetrix GeneChip oligonucleotide arrays, using either identical RNA samples or RNA samples obtained under similar biological states.
Ordination of species responses in the community identified a guild of pioneer species responding to the trimmed treatments, but not the debris additions, amongst substantial background variation in species composition unrelated to the experimental treatments.
While the Gc part may represent potentially causative variants, Gu part is believed to represent background variation.
The sequential approximations can efficiently remove background variation in the double-mutation screens and give increasingly accurate estimates of the single-mutant fitness measurements.
This cross indicated that dcr acts as a recessive allele segregating as a single locus and that the decrepit phenotype is not substantially affected by genetic background variation.
