calc_genoprob_single_parent: Compute conditional probabilities of the genotype (one...

In mappoly: Genetic Linkage Maps in Autopolyploids

Compute conditional probabilities of the genotype (one informative parent)

Description

Conditional genotype probabilities are calculated for each marker position and each individual given a map

Usage

calc_genoprob_single_parent(
  input.map,
  step = 0,
  info.parent = 1,
  uninfo.parent = 2,
  global.err = 0,
  phase.config = "best",
  verbose = TRUE
)

Arguments

input.map	An object of class mappoly.map (with exceptions)
step	Maximum distance (in cM) between positions at which the genotype probabilities are calculated, though for step = 0, probabilities are calculated only at the marker locations.
info.parent	index for informative parent
uninfo.parent	index for uninformative parent
global.err	the assumed global error rate (default = 0.0)
phase.config	which phase configuration should be used. "best" (default) will choose the phase configuration associated with the maximum likelihood
verbose	if TRUE (default), current progress is shown; if FALSE, no output is produced

Value

An object of class 'mappoly.genoprob' which has two elements: a tridimensional array containing the probabilities of all possible genotypes for each individual in each marker position; and the marker sequence with it's recombination frequencies

Author(s)

Marcelo Mollinari, [e-mail]

References

Mollinari, M., and Garcia, A. A. F. (2019) Linkage analysis and haplotype phasing in experimental autopolyploid populations with high ploidy level using hidden Markov models, _G3: Genes, Genomes, Genetics_. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1534/g3.119.400378")}

Examples

 ## tetraploid example
 s <- make_seq_mappoly(tetra.solcap, 'seq12', info.parent = "p1")
 tpt <- est_pairwise_rf(s)
 map <- est_rf_hmm_sequential(input.seq = s,
                              twopt = tpt,
                               start.set = 10,
                               thres.twopt = 10, 
                               thres.hmm = 10,
                               extend.tail = 4,
                               info.tail = TRUE, 
                               sub.map.size.diff.limit = 8, 
                               phase.number.limit = 4,
                               reestimate.single.ph.configuration = TRUE,
                               tol = 10e-2,
                               tol.final = 10e-3)
 plot(map)                                     
 probs <- calc_genoprob_single_parent(input.map = map, 
                                   info.parent = 1, 
                                   uninfo.parent = 2, 
                                   step = 1)
 probs
 ## displaying individual 1, 6 genotypic states
 ## (rows) across linkage group 1 (columns)                          
 image(t(probs$probs[,,2]))

mappoly documentation built on May 29, 2024, 6:05 a.m.