Two morphotypes of the Mediterranean zoanthid Parazoanthus axinellae (Schmidt, 1862) are found in the Mediterranean Sea: ‘Slender’ and ‘Stocky’, which differ in size, color, and substrate preference. We used 2bRAD-Seq to get genome‐wide genotyped single nucleotide polymorphisms to study the genetic differentiation between ‘Slender’ and ‘Stocky’ morphs, as well as their population structure. 101 specimens of P. axinellae were sampled and genotyped from locations along the Italian coastline. A marked and consistent differentiation between the morphs was observed. The widely distributed ‘Slender’ morph showed higher population admixture, whereas populations of the 'Stocky' morph, found only in the north-western Mediterranean, showed higher regional genetic partitioning.

FINE-SCALE GENETIC STRUCTURING AMONG MEDITERRANEAN PARAZOANTHUS AXINELLAE (SCHMIDT, 1862) SPECIES COMPLEX POPULATIONS DISCLOSED BY 2BRAD

TERZIN Marko;VILLAMOR Adriana;MARINCICH Lorenzo;PALETTA Maria Grazia;BERTUCCIO Valentina;ABBIATI Marco;COSTANTINI Federica
2022

Abstract

Two morphotypes of the Mediterranean zoanthid Parazoanthus axinellae (Schmidt, 1862) are found in the Mediterranean Sea: ‘Slender’ and ‘Stocky’, which differ in size, color, and substrate preference. We used 2bRAD-Seq to get genome‐wide genotyped single nucleotide polymorphisms to study the genetic differentiation between ‘Slender’ and ‘Stocky’ morphs, as well as their population structure. 101 specimens of P. axinellae were sampled and genotyped from locations along the Italian coastline. A marked and consistent differentiation between the morphs was observed. The widely distributed ‘Slender’ morph showed higher population admixture, whereas populations of the 'Stocky' morph, found only in the north-western Mediterranean, showed higher regional genetic partitioning.
UNEP/MAP – SPA/RAC, 2022. Proceedings of the 4th Mediterranean Symposium on the conservation of Coralligenous & other Calcareous Bio-Concretions (Genova, Italy, 20-21 September 2022).
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TERZIN Marko, VILLAMOR Adriana, MARINCICH Lorenzo, PALETTA Maria Grazia, BERTUCCIO Valentina, ABBIATI Marco, COSTANTINI Federica
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/894271
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