We present a hidden Markov model (HMM) for inferring gradual isolation between two populations during speciation. modelled as a time interval with restricted gene flow. The HMM describes the history of adjacent nucleotides in two genomic sequences. such that the nucleotides can be separated by recombination. https://www.chiggate.com/color-charm-12n-1200-high-lift-blonde-1-4oz-online-now/