title: Genic variation in isolated marginal populations of the Roman snail, Helix pomatia L.
mesh_terms: D000483:Alleles; D000818:Animals; D005075:Biological Evolution; D005387:Finland; D014644:Genetic Variation; D006372:Helix, Snails / Q000201:enzymology; D011110:Polymorphism, Genetic; D012908:Snails / Q000201:enzymology; D013548:Sweden