@ARTICLE{TreeBASE2Ref17228, author = {M. G. D. Robin and Weimin Ye and Natsumi Kanzaki and Donna Williams and K. Morris and W. Kelley Thomas}, title = {Stomatal Ultrastructure, Molecular Phylogeny and Description of Parasitodiplogaster laevigata n. sp. (Nematoda: Diplogastridae), a Parasite of Fig Wasps from Ficus laevigata from Florida}, year = {2006}, keywords = {}, doi = {}, url = {}, pmid = {}, journal = {Journal of Nematology}, volume = {}, number = {}, pages = {}, abstract = {Parasitodiplogaster comprises a potentially large radiation of nematode species that appear to be parasitically bound to their Agaonid fig wasp hosts, which are mutualistically associated in the syconia (figs) of the diverse plant genus Ficus. Parasitodiplogaster laevigata n. sp., a parasitic associate of the fig wasp, Pegoscapus sp. from Ficus laevigata from southern Florida is described and illustrated. Parasitodiplogaster laevigata n. sp. is the first species of Parasitodiplogaster reported from North America and is closest to P. trigonema from F. trigonata from Panama based upon morphological similarities in males and molecular phylogenetic analysis of the D2D3 expansion segments of the large subunit (LSU) rRNA gene. Parasitodiplogaster laevigata n. sp. can be differentiated from all described species of Parasitodiplogaster based upon stomatal morphology (presence of a large dorsal and a right subventral tooth) in the adults of both sexes, molecular comparisons of D2D3, and fig/fig wasp host affinities. The ultrastructure of P. laevigata n. sp. was elucidated using TEM and SEM for comparisons with other species of Parasitodiplogaster and for generating hypotheses about the origin of this major radiation of parasitic nematodes in the Diplogastridae. The stoma of P. laevigata n. sp. possesses a non-segmented cheilostomal ring that connects to the longitudinal body musculature per- and interradially, a claw-like dorsal tooth, a right subventral tooth, and telostegostomatal apodemes arising from the dorsal side of each subventral sector suggesting affinities with Koerneria. However, the dorsal esophageal gland orifice does not exit the tip of the dorsal tooth as with Koerneria, but through a distinct telostegostomatal plate below the tooth. The unification of the pro-, meso-, and metastegostom with the gymnostom in P. laevigata n. sp. and further simplification in other described species may be due to derived adaptations associated with the internal parasitism of fig wasps.} }

• Go to search
• Citation
• Taxa
• Matrices
• Trees
• Analyses
• 

CiteULike

Delicious

Connotea