QTL Analysis in Autopolyploid Bi-Parental F1 Populations


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Documentation for package ‘polyqtlR’ version 0.1.1

Help Pages

BLUE Calculate Best Linear Unbiased Estimates using linear mixed model from 'nlme' package
BLUEs.pheno Best Linear Unbiased Estimates of phenotype
check_cofactors Build a multi-QTL model using step-wise procedure of checking genetic co-factors.
convert_mappoly_to_phased.maplist Function to extract the phased map from a mappoly.map object
count_recombinations Predict recombination breakpoints using IBD probabilities
estimate_GIC Estimate the Genotypic Information Coefficient (GIC)
estimate_IBD Generate IBD probabilities from marker genotypes and a phased linkage map
exploreQTL Explore the possible segregation type of a QTL peak using Schwarz Information Criterion
findPeak Function to find the position of maximum LOD on a particular linkage group
findSupport Function to find a LOD - x support interval around a QTL position
GIC_4x Genotypic Information Coefficient for example tetraploid
IBD_4x Identical by descent probabilities for example tetraploid
import_IBD Import IBD probabilities as estimated by TetraOrigin or PolyOrigin
impute_dosages Re-estimate marker dosages given IBD input estimated using a high error prior.
maxL_IBD Wrapper function to run estimate_IBD function over multiple error priors
meiosis_report Generate a 'report' of predicted meiotic behaviour in an F1 population
mr.ls Example output of meiosis report function
phased_maplist.4x Phased maplist for example tetraploid
Phenotypes_4x Phenotypes for example tetraploid
plotLinearQTL Plot the results of QTL scan.
plotLinearQTL_list Plot the results of QTL scan.
plotQTL Plot the results of QTL scan.
plotRecLS Plot the recombination landscape across the genome
PVE Function to determine the percentage variance explained (PVE) of a (maximal) QTL model, and explore sub-models.
QTLscan General QTL function that allows for co-factors, completely randomised block designs and the possibility to derive LOD thresholds using a permutation test
qtl_LODs.4x QTL output for example tetraploid
Rec_Data_4x Recombination data for example tetraploid
segList_2x Expected segregation for all markers types of a diploid cross
segList_3x Expected segregation for all markers types of a triploid cross (4 x 2)
segList_3x_24 Expected segregation for all markers types of a triploid cross (2 x 4)
segList_4x Expected segregation for all markers types of a tetraploid cross
segList_6x Expected segregation for all markers types of a hexaploid cross
segMaker Create a list of possible QTL segregation types
singleMarkerRegression Run a single marker regression using marker dosages
SNP_dosages.4x SNP marker dosage data for example tetraploid
spline_IBD Fit splines to IBD probabilities
thinmap Thin out map data
visualiseGIC Visualise Genotypic Information Coefficient
visualiseHaplo Visualise haplotypes in certain individuals in a certain region
visualisePairing Visualise pairing of parental homologues
visualiseQTLeffects Visualise QTL homologue effects around a QTL position