Description Usage Arguments Author(s) References Examples
Compares the QST of a single phenotypic trait to the mean FST of series of marker loci. It calculates the distribution of QST - FST under a model assuming neutrality of both the phenotypic trait and the genetic markers from which FST is estimated. Returns the simulated estimates of Qst - Fst under neutrality following the procedure described in Gilbert and Whitlock (2014) and Whitlock & Guillaume (2009). Also returns the simulated estimates of Fst and Qst used to compute the null distribution.
1 2 | QstFstComp(fst.dat, qst.dat, numpops, nsim = 1000, AFLP = FALSE,
breeding.design, dam.offspring.relatedness = 0.25, output = "concise")
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fst.dat |
A data frame with the first column indicating population of origin and
the following columns representing genotypes at loci; see the
README https://github.com/kjgilbert/QstFstComp/blob/master/README.md for further description.
If using AFLPs, this is a data frame of q-hat values, with pops in columns, loci in rows
and the corresponding q-hat variances in the following columns, and |
qst.dat |
the input table of the breeding data
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numpops |
number of populations in the sample |
nsim |
number of simulation replicates to perform to create the null distributions and bootstraps @param AFLP whether or not to use AFLP data @param breeding.design the breeding design used when collecting the trait data There are two options for breeding design:
@param dam.offspring.relatedness relatedness between offspring in the dam model, default is 1/4, i.e. half-sib @param output whether to output full, concise, or without writing out vector of resampled Q-F values, see details below @return Returns either a concise list of a subset of results or a full list with all possible results. Both output options write the vector of Qst-Fst values to a text file unless "_nowrite" is appended to the option, e.g. "concise_nowrite" returns only the concise output without writing output to a text file. Concise list returns (default)
Full list returns
Be mindful of the fact that with a small number of loci, bootstrapped confidence intervals of Fst can be less accurate. |
Kimberly J Gilbert & Michael C Whitlock
Gilbert KJ and MC Whitlock (2015) Qst Fst comparisons with unbalanced half-sib designs. Molecular Ecology Resources, 15(2), 262-267.
Whitlock MC and F Guillaume (2009) Testing for spatially divergent selection: Comparing Qst to Fst. Genetics, 183:1055-1063.
1 2 3 4 5 6 7 8 | ## using balanced half-sib sire trait data and biallelic marker data
data(hssire) # trait data
data(biallelic) # marker data
QstFstComp(biallelic, hssire, numpops=15, nsim=100, breeding.design="half.sib.sire", output="full")
data(hsdam)
data(aflp)
QstFstComp(aflp, hsdam, numpops=15, nsim=100, AFLP=TRUE, breeding.design="half.sib.dam", output="concise")
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