Systematics of the European endangered crayfish species Austropotamobius pallipes (Decapoda : astacidae) with a re-examination of the status of Austropotamobius berndhauseri

Catherine Souty-Grosset (1) , Didier Bouchon (1) , Frédéric Grandjean (1, 2)

1 GBPC - Génétique et biologie des populations de crustacés
2 EBI [Poitiers] - Écologie et biologie des interactions

The status of Austropotamobius berndhauseri (Crustacea, Decapoda) was re-examined by the combination of two recent genetic studies based on the analysis of the mitochondrial 16S rRNA gene obtained from sampling across the entire range of the white-clawed crayfish species complex. From the phylogenetic tree obtained, the results clearly demonstrate two clusters (A and B) separated by a strong genetic divergence (5.0±1.0%) corresponding to A. italicus and A. pallipes species. Within A. italicus, three mtDNA lineages were found corresponding to A. i. italicus, A. i. carinthiacus, and A. i. carsicus. Austropotamobius berndhauseri specimens are not genetically distinct from A. i. carinthiacus distributed in Austria. This group is more closely related to A. i. italicus(1.4±0.5%) than A. i. carsicus(3.6±0.7%) which is concordant with allozyme data. These data support the redefinition of A. berndhauseri as being A. italicus carsicus.

Domaines: Génétique des populations [q-bio.PE]; Biodiversité et Ecologie

Catherine Souty-Grosset, Didier Bouchon, Frédéric Grandjean. Systematics of the European endangered crayfish species Austropotamobius pallipes (Decapoda : astacidae) with a re-examination of the status of Austropotamobius berndhauseri. Journal of Crustacean Biology, 2002, 22 (3), pp.677-681. ⟨10.1163/20021975-99990280⟩. ⟨hal-00123436⟩