The 18S rDNA sequences support polyphyly of the Hypsibiidae (Eutardigrada)
نویسندگان
چکیده
منابع مشابه
28S and 18S rDNA sequences support the monophyly of lampreys and hagfishes.
Resolving the interrelationships of three major extant lineages of vertebrates (hagfishes, lampreys, and gnathostomes) is a particularly important issue in evolution, because the basal resolution critically influences our understanding of primitive vertebrate characters. A consensus has emerged over the last 20 years that lampreys are the sister group to the gnathostomes and the hagfishes repre...
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Previous studies of the phylogeny of land plants based on analysis of 18S ribosomal DNA (rDNA) sequences have generally found weak support for the relationships recovered and at least some obviously spurious relationships, resulting in equivocal inferences of land plant phylogeny. We hypothesized that greater sampling of both characters and taxa would improve inferences of land plant phylogeny ...
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The internal phylogeny of the 'myriapod' class Chilopoda is evaluated for 12 species belonging to the five extant centipede orders, using 18S rDNA complete gene sequence and 28S rDNA partial gene sequence data. Equally and differentially weighted parsimony, neighbour-joining and maximum-likelihood were used for phylogenetic reconstruction, and bootstrapping and branch support analyses were perf...
متن کاملPhylogenetic analysis of Lymnaeid snails based on 18S rDNA sequences.
The 18S rDNA sequences of the six most common European Lymnaeidae species (Mollusca:Gastropoda:Basommatophora) have been obtained by direct PCR cycle sequencing and silver staining methods. The sequence alignment and secondary structures of the 18S rRNA gene of Lymnaea stagnalis, L. auricularia, L. peregra, L. palustris, L. glabra, and L. truncatula are analyzed. This gene proves to be a good m...
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ژورنال
عنوان ژورنال: Journal of Limnology
سال: 2007
ISSN: 1723-8633,1129-5767
DOI: 10.4081/jlimnol.2007.s1.21