Data from: High-resolution estimates of crossover and noncrossover recombination from a captive baboon colony

Homologous recombination has been extensively studied in humans and a
handful of model organisms. Much less is known about recombination in
other species, including non-human primates. Here we present a study of
crossovers and non-crossover (NCO) recombination in olive baboons (Papio
anubis) from two pedigrees containing a total of 20 paternal and 17
maternal meioses, and compare these results to linkage disequlibrium (LD)
based recombination estimates from 36 unrelated olive baboons. We
demonstrate how crossovers, combined with LD-based recombination
estimates, can be used to identify genome assembly errors. We also
quantify sex-specific differences in recombination rates, including
elevated male crossover and reduced female crossover rates near telomeres.
Finally, we add to the increasing body of evidence suggesting that while
most NCO recombination tracts in mammals are short (e.g., < 500
bp), there are a non-negligible fraction of longer (e.g., > 1 Kbp)
NCO tracts. For NCO tracts shorter than 10 Kbp, we fit a mixture of two
(truncated) geometric distributions model to the NCO tract length
distribution and estimate that >99% of all NCO tracts are very
short (mean 24 bp), but the remaining tracts can be quite long (mean 4.3
Kbp). A single geometric distribution model for NCO tract lengths is
incompatible with the data, suggesting that LD-based methods for
estimating NCO recombination rates that make this assumption may need to
be modified.