کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9143132 1164377 2005 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Molecular phylogeny of parabasalids inferred from small subunit rRNA sequences, with emphasis on the Hypermastigea
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Molecular phylogeny of parabasalids inferred from small subunit rRNA sequences, with emphasis on the Hypermastigea
چکیده انگلیسی
Small subunit rRNA gene sequences were identified without cultivation from parabasalid symbionts of termites belonging to the hypermastigid orders Trichonymphida (the genera Hoplonympha, Staurojoenina, Teranympha, and Eucomonympha) and Spirotrichonymphida (Spirotrichonymphella), and from four yet-unidentified parabasalid symbionts of the termite Incisitermes minor. All these new sequences were analyzed by Bayesian, likelihood, and parsimony methods in a broad phylogeny including all identified parabasalid sequences available in databases and some as yet unidentified sequences probably derived from hypermastigids. A salient point of our study focused on hypermastigids was the polyphyly of this class. We also noted a clear dichotomy between Trichonymphida and the other parabasalid taxa. However, this hypermastigid order was apparently polyphyletic, probably reflecting its morphological diversity. Among Trichonymphida, Teranympha (Teranymphidae) grouped together with the members of the family Eucomonymphidae, suggesting that its family status is ambiguous. The monophyletic lineage composed by Spirotrichonymphida exhibited a narrower branching pattern than Trichonymphida. The root of parabasalids was examined but could not be discerned accurately.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular Phylogenetics and Evolution - Volume 35, Issue 3, June 2005, Pages 646-655
نویسندگان
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