کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10879009 | 1076524 | 2014 | 38 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The Chaos Prevails: Molecular Phylogeny of the Haptoria (Ciliophora, Litostomatea)
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
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چکیده انگلیسی
The Haptoria are free-living predatory ciliates living in terrestrial and aquatic habitats all around the world. They belong to a highly diverse class, Litostomatea, whose morphological and molecular classifications harmonize poorly since both approaches produce rather different frameworks. In the present study, we analyzed the genealogy of the litostomateans, including eight new haptorian 18S rRNA gene sequences. Apart from traditional tree-building methods, we also applied phylogenetic networks, split spectrum analysis and quartet likelihood mapping to assess the information content of alignments. These analyses show that: (1) there are several strongly supported monophyletic litostomatean lineages - Rhynchostomatia, Trichostomatia, Haptorida, Lacrymariida, Pleurostomatida, and Didiniida; (2) the Rhynchostomatia are the best candidates for a basal litostomatean group; (3) sister relationship of the Trichostomatia and Haptoria is very likely, which well corroborates the traditional morphology-based classifications; (4) molecular phylogeny of the order Spathidiida is only poorly resolved very likely due to one or several rapid radiation events or due to the incomplete lineage sorting at the rRNA locus; and (5) the basal position of the genera Chaenea and Trachelotractus in molecular trees and phylogenetic networks is very likely a result of class III long-branch effects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Protist - Volume 165, Issue 1, January 2014, Pages 93-111
Journal: Protist - Volume 165, Issue 1, January 2014, Pages 93-111
نویسندگان
Peter VÄaÄný, Hans-Werner Breiner, Varvara Yashchenko, Micah Dunthorn, Thorsten Stoeck, Wilhelm Foissner,