Indication for selfing in geographically separated populations and evidence for Pleistocene survival within the Alps: the case of Cylindrus obtusus (Pulmonata: Helicidae)
Abstract Background Cylindrus obtusus is one of the most prominent endemic snail species of the Eastern Alps.It is restricted to alpine meadows and calcareous rocky habitats above 1500 m.Peculiar intraspecific differences have been observed in its genital tract in the eastern populations the two mucus glands associated with the love dart sac are hi