Unexpectedly low recombination rates and presence of hotspots in termite genomes

Table 1.

Estimates of levels of genetic variation, effective population size, and recombination rate in two termite species

Species Assembly length (Mb) No. of SNPs θW/bp μ/bp/gen NE LDhat LDhelmet
ρ/kb r (cM/Mb) ρ/kb r (cM/Mb)
M. bellicosus 1139 5,581,662 0.14% 2.7 × 10−10 1,278,982 1.69 0.033 4.28 0.084
4.5 × 10−9 76,876 0.550 1.392
8.1 × 10−9 42,898 0.986 2.494
C. secundus 992 15,037,468 0.44% 2.7 × 10−10 4,080,725 4.85 0.030 16.39 0.100
4.5 × 10−9 245,280 0.494 1.671
8.1 × 10−9 136,869 0.885 2.994
  • (θW/bp) Watterson's θ per base pair, (ρ/kbp) population recombination parameter, (ρ) per kilobase, (μ/bp/gen) mutation rate per base pair per generation taken from literature, (NE) effective population size, and (r [cM/Mb]) recombination rate in centimorgans per megabase. Estimates correspond to Acyrthosiphon pisum (2.7 × 10−10), Drosophila melanogaster (4.5 × 10−9), and Drosophila pseudoobscura (8.1 × 10−9) (Lynch et al. 2023).

This Article

  1. Genome Res. 35: 1124-1137

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