, Arachnids, and Nematodes. Since 1917, Agriculture and Agri-Food Canada has been the custodian with the collection, which is currently500 Journal of Nematology, Volume 44, No. 4, December 2012 housed around the Central Experimental Farm in Ottawa, ON. The nematode collection was created by Dr. A. Baker in 1945, using the key mandate of discovering and documenting the Canadian nematode fauna, while the collection also homes substantial international depositions. The collection was expanded by R. Mulvey and R. Anderson, the curators following Dr. Baker. Important contributions had been also produced by the linked taxonomists Drs. L-Y. Wu and B. Ebsary. Other Canadian nematologists have deposited their specimens within the collection more than the years, which includes Drs. W. B. Mountain, J. Webster, T. Vrain, J. Townshend, T. Oltholf and J. Potter. The collection consists with the kind collection, the basic collection, the demonstration collection plus the literature collection. The form collection has over 500 species of primary and secondary varieties, plus the common collection has more than 10,000 accessions. The Canadian National Collection of Nematodes could be the only among its kind in Canada. Given that its creation, it has not just effectively served in supporting investigation and regulatory activities in Canada, nevertheless it has turn out to be a significant repository of nematode specimens from nematologists about the globe. Efforts are underway to digitize the collection. DITYLENCHUS SB-220453 price destructor Thorne, 1945 (TYLENCHIDA: ANGUINIDAE) IN CANADA. Yu, Qing. Eastern Cereal and Oilseed Analysis Center, Agriculture and Agri-Food Canada, Ottawa, ON Canada. The potato rot nematode, Ditylenchus destructor Thorne 1945, can be a significant pest in a number of crops, and it’s internationally quarantined. In Canada, its distribution is reported to be limited. Before the current find in garlic in Ontario in 2011, D. destructor had been reported in potatoes in Prince Edward Island (PEI) in 1946, and in potatoes (1953) and Iris (1961) on Vancouver Island, British Columbia (BC), though these latter findings haven’t been recognized. Re-examination with the BC and PEI findings and comparison to the recent discovering in Ontario was possible due to the fact the nematode specimens from these earlier research have been deposited within the Canadian National Collection of Nematodes. Morphologically, the main characters of these nematodes match these of D. destructor. Some morphometric differences were observed among the nematodes on the 4 isolates. We present these data to eliminate any doable confusion concerning the identity with the D. destructor in Canada. Working with MITOGENOMIC AND NUCLEAR RIBOSOMAL SEQUENCE Data TO INVESTIGATE THE PHYLOGENY OF XIPHINEMA AMERICANUM POPULATIONS In the United states. Zasada, Inga1, A. Peetz1, A. Smythe2, D. Howe3, D. Cheam3, and D. Denver3. 1USDA-ARS Horticultural Crops Investigation Laboratory, 3420 NW Orchard Ave., Corvallis, OR 97330; 2Deparment of Biology, Hamilton College, Clinton, NY 13323; and 3Department of Zoology, Oregon State University, Corvallis, OR 97330. Species within the Xiphinema americanum-group are regarded economically important simply because they vector nepoviruses which can cause considerable damage to many different agricultural crops. The taxonomy of your X. americanum-group is historically controversial, using the variety of putative species becoming the topic of debate. Some members with the X. americanum-group have been linked with virus transmission although other folks haven’t. Continued phylogen.