Genetic variability of Austropotamobius italicus in the Marches region: implications for conservation

Authors

  • Rosaria Cataudella,

    Corresponding author
    1. Dipartimento di Scienze dell'Uomo, dell'Ambiente e della Natura, Università di Urbino ‘Carlo Bo’, Campus scientifico, Località Crocicchia, I-61029 Urbino PU, Italy
    • Dipartimento di Scienze dell'Uomo, dell'Ambiente e della Natura, Università di Urbino ‘Carlo Bo’, Campus scientifico, Località Crocicchia, I-61029 Urbino PU, Italy
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  • Marina Paolucci,

    1. Dipartimento di Scienze Biologiche ed Ambientali, Facoltà di Scienze, Università del Sannio, Via Port'Arsa, 11 82100 Benevento, Italy
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  • Carine Delaunay,

    1. UMR 6556 - Génétique et Biologie des Populations de Crustacés Université de Poitiers, 40 avenue du Recteur Pineau, F-86022 Poitiers cedex, France
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  • Anne Ropiquet,

    1. UMR 5202 - Origine, Structure, et Evolution de la Biodiversité, Département de Systématique et Evolution, Muséum National d'Histoire Naturelle, Case postale N°51: 55, rue Buffon, 75005 Paris, France
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  • Alexandre Hassanin,

    1. UMR 5202 - Origine, Structure, et Evolution de la Biodiversité, Département de Systématique et Evolution, Muséum National d'Histoire Naturelle, Case postale N°51: 55, rue Buffon, 75005 Paris, France
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  • Maria Balsamo,

    1. Dipartimento di Scienze dell'Uomo, dell'Ambiente e della Natura, Università di Urbino ‘Carlo Bo’, Campus scientifico, Località Crocicchia, I-61029 Urbino PU, Italy
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  • Frédéric Grandjean

    1. UMR 6556 - Génétique et Biologie des Populations de Crustacés Université de Poitiers, 40 avenue du Recteur Pineau, F-86022 Poitiers cedex, France
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Abstract

  • 1.Ten populations of Austropotamobius italicus from the Marches region (Central Italy), two populations from the Appennines of Calabria and Basilicata (Southern Italy) and four populations from Friuli Venezia Giulia region were sampled to elucidate the geographical pattern of genetic variability in relation to recent and historical factors.
  • 2.A total of nine COI haplotypes belonging to three separate lineages have been characterized. Both lineage A (Northern Marches region) and C (Friuli Venezia Giulia region) were represented by one haplotype and were related to the Istria 1 peninsula and SouthAlps/Western Balkans lineages respectively. The lineage B included seven haplotypes belonging to the Appenines lineage.
  • 3.Two hypotheses on the origin of individuals belonging to the Istrian lineage in Marches are discussed: (i) a natural colonization from the Istria peninsula refugia by migrating westwards across the bridge between the Istria peninsula and Italy, (ii) an anthropogenic origin. Based on 16S rRNA sequences, the taxonomic status of lineage B and C, defined from COI mtDNA markers, belongs to A. i. meridionalis and that of lineage A belongs to A. i. carsicus. The existence of a complex geographic structure between Marches populations (Φst=0.66) of A. i. meridionalis should be further considered in conservation management. Copyright © 2010 John Wiley & Sons, Ltd.

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