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Journal article
The invasive land planarian Platydemus manokwari (Platyhelminthes, Geoplanidae): records from six new localities, including the first in the USA
PeerJ (San Francisco, CA), v 3(6), 1037
23 Jun 2015
PMID: 26131377
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The land planarian Platydemus manokwari de Beauchamp, 1963 or "New Guinea flatworm" is a highly invasive species, mainly in the Pacific area, and recently in Europe (France). We report specimens from six additional countries and territories: New Caledonia (including mainland and two of the Loyalty Islands, Lifou and Mare), Wallis and Futuna Islands, Singapore, Solomon Islands, Puerto Rico, and Florida, USA. We analysed the COI gene (barcoding) in these specimens with two sets of primers and obtained 909 bp long sequences. In addition, specimens collected in Townsville (Australia) were also sequenced. Two haplotypes of the COI sequence, differing by 3.7%, were detected: the "World haplotype" found in France, New Caledonia, French Polynesia, Singapore, Florida and Puerto Rico; and the "Australian haplotype" found in Australia. The only locality with both haplotypes was in the Solomon Islands. The country of origin of Platydemus manokwari is New Guinea, and Australia and the Solomon Islands are the countries closest to New Guinea from which we had specimens. These results suggest that two haplotypes exist in the area of origin of the species, but that only one of the two haplotypes (the "World haplotype") has, through human agency, been widely dispersed. However, since P. manokwari is now recorded from 22 countries in the world and we have genetic information from only 8 of these, with none from New Guinea, this analysis provides only partial knowledge of the genetic structure of the invasive species. Morphological analysis of specimens from both haplotypes has shown some differences in ratio of the genital structures but did not allow us to interpret the haplotypes as different species. The new reports from Florida and Puerto Rico are firsts for the USA, for the American continent, and the Caribbean. P. manokwari is a known threat for endemic terrestrial molluscs and its presence is a matter of concern. While most of the infected territories reported until now were islands, the newly reported presence of the species in mainland US in Florida should be considered a potential major threat to the whole US and even the Americas.
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- Title
- The invasive land planarian Platydemus manokwari (Platyhelminthes, Geoplanidae): records from six new localities, including the first in the USA
- Creators
- Jean-Lou Justine - UPMC, Univ Sorbonne, Inst Systemat, Evolut,Biodiversite,ISYEB,UMR7205,CNRS,EPHE,MNHN, Paris, FranceLeigh Winsor - James Cook UniversityPatrick Barriere - PEE, CEN NC, Kone, New CaledoniaCrispus Fanai - Minist Agr & Livestock, Biosecur Solomon Isl, Honiara, Solomon IslandsDelphine Gey - Museum Natl Hist Nat, Serv Systemat Mol, F-75231 Paris, FranceAndrew Wee Kien Han - SingHlth Polyclin, Marine Parade Cent, Marine Parade, Singapore, SingaporeGiomara La Quay-Velazquez - University of Puerto Rico SystemBenjamin Paul Yi-Hann Lee - University of KentJean-Marc Lefevre - Ville Caen, Environm & Cadre Vie, Caen, FranceJean-Yves Meyer - Govt Polynesie Francaise, Delegat Rech, Papeete, Tahiti, FranceDavid Philippart - FREDON Basse Normandie, Herouville St Clair, FranceDavid G. Robinson - Drexel University, Academy of Natural Sciences of Drexel UniversityJessica Thevenot - Muséum national d'Histoire naturelleFrancis Tsatsia - Minist Agr & Livestock, Biosecur Solomon Isl, Honiara, Solomon Islands
- Publication Details
- PeerJ (San Francisco, CA), v 3(6), 1037
- Publisher
- Peerj Inc
- Number of pages
- 20
- Grant note
- MNHN ATMs "Emergences" MNHN ATMs "Barcode"
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Academy of Natural Sciences of Drexel University
- Web of Science ID
- WOS:000357137000003
- Scopus ID
- 2-s2.0-84944718458
- Other Identifier
- 991021864306704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Ecology