Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Identification of the clam species Ruditapes decussatus (grooved carpet shell), Venerupis pullastra (pullet carpet shell), and Ruditapes philippinarum (Japanese carpet shell) by PCR-RFLP.

Abstract

PCR-RFLP analysis has been applied to the identification of three clam species: Ruditapes decussatus (grooved carpet shell), Venerupis pullastra (pullet carpet shell), and Ruditapes philippinarum (Japanese carpet shell). PCR amplification was carried out using a set of primers designed from the DNA nucleotide sequences reported for α-actins from humans and various animals. Restriction endonuclease analysis based on sequence data of the PCR products of each clam species revealed the presence of species-specific polymorphic sites for MaeIII and RsaI endonucleases. Electrophoretic analysis of the amplicons digested with MaeIII and RsaI produced species-specific profiles that allowed the genetic identification of the three clam species.