qtlcharts (version 0.16)

grav: Arabidopsis QTL data on gravitropism

Description

Data from a QTL experiment on gravitropism in Arabidopsis, with data on 162 recombinant inbred lines (Ler x Cvi). The outcome is the root tip angle (in degrees) at two-minute increments over eight hours.

Usage

data(grav)

Format

An object of class `"cross"`; see [qtl::read.cross()].

References

Moore CR, Johnson LS, Kwak I-Y, Livny M, Broman KW, Spalding EP (2013) High-throughput computer vision introduces the time axis to a quantitative trait map of a plant growth response. Genetics 195:1077-1086 ([PubMed](https://pubmed.ncbi.nlm.nih.gov/23979570/))

Examples

# NOT RUN {
data(grav)
times <- attr(grav, "time")
phe <- grav$pheno
# }
# NOT RUN {
iplotCurves(phe, times, phe[,c(61,121)], phe[,c(121,181)],
            chartOpts=list(curves_xlab="Time (hours)", curves_ylab="Root tip angle (degrees)",
                           scat1_xlab="Angle at 2 hrs", scat1_ylab="Angle at 4 hrs",
                           scat2_xlab="Angle at 4 hrs", scat2_ylab="Angle at 6 hrs"))
# }