Ren et al. (2018). Genomic basis of recombination suppression in the hybrid between Caenorhabditis briggsae and C. nigoni. Nucleic Acid Research. https://academic.oup.com/nar/article/46/3/1295/4793371 The cb4 C. briggsae assembly contains 5,997 gaps (represented by ‘Ns’) and 361 contigs not anchored to any…