Source google image: https://www.researchgate.net/profile/Brian_Fontenot/publication/23640640/figure/tbl1/AS:669694906335245@1536679116967/Average-genetic-distance-for-each-reproductive-isolation-index-level.png
Isolation 7 letters
Source google image: https://www.researchgate.net/profile/Brian_Fontenot/publication/23640640/figure/tbl1/AS:669694906335245@1536679116967/Average-genetic-distance-for-each-reproductive-isolation-index-level.png