Results 171 to 180 of about 14,854 (216)

SSU rDNA phylogeny of cladoniiform lichens

American Journal of Botany, 1998
To examine phylogenetic relationships among the “cladoniiform” lichenized fungi, i.e., the families Cladoniaceae, Baeomycetaceae, Icmadophilaceae, Stereocaulaceae, and Siphulaceae, and to provide evidence for the anticipated independent origins of podetia and pseudopodetia, we conducted phylogenetic analyses of SSU (small subunit) rDNA sequences from ...
S K, Stenroos, P T, Depriest
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A MOLECULAR ANALYSIS OF THE EUGLENOPHYTES USING SSU RDNA

Journal of Phycology, 2000
Almost since the creation of the genus Euglena (Ehrenberg), the taxa assigned to it have been separated, split apart, and reorganized into new genera based on morphological relationships, resulting in the creation of the genera Phacus (Dujardin), Lepocinclis (Perty), Astasia (Pringsheim), and Khawkinea ( Jahn and McKibben) based on intuitive methods ...
Eric W, Linton, Maria Alejandra, Nudelman, Visitacion, Conforti, Richard E, Triemer   +3 more
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Amplification primers of SSU rDNA for soil protists

Soil Biology and Biochemistry, 2014
We reviewed the literature and sequence data bases to evaluate primers used to identify SSU rDNA genes from protists commonly found in environmental soil samples. From our summary of the most common primers described in the literature, we performed in silico tests to determine their efficacy in identifying protists.
Sina M. Adl, Andrea Habura, Yana Eglit
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Phylogenetic relationships ofSphaerophoraceae (Ascomycetes) inferred from SSU rDNA sequences

Plant Systematics and Evolution, 1998
SSU rDNA was sequenced from the lichenized fungiBunodophoron scrobiculatum andLeifidium tenerum (Sphaerophoraceae), andStereocaulon ramulosum andPilophorus acicularis (Stereocaulaceae) and analysed by maximum parsimony with 44 homologous ascomycete sequences in a cladistic study. A small insertion (c.
Mats Wedin, Anders Tehler, Andrea Gargas
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Phylogenetic Position of Psalteriomonas lanterna Deduced from the SSU rDNA Sequence

Journal of Eukaryotic Microbiology, 1997
ABSTRACT. The small subunit ribosomal DNA sequence (SSU rDNA) of the microaerophilic free‐living amoeboflagellate Psalteriomonas lanterna has been sequenced and analyzed. The gene is 1,945 bp long and has a G + C content of 33.4%. Based upon ultrastructural studies, P.
Weekers, P.H.H., Kleyn, J., Vogels, G.D.
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Heterogeneity of SSU and LSU rDNA sequences of Alexandrium species

Biochemical Systematics and Ecology, 1998
With the growth of aquaculture, toxic phytoplankton have become a significant problem. At present, the identification of specific algal species within blooms requires considerable expertise, and the methods are both costly and time consuming. It is clear that alternative diagnostic tests must be developed that allow rapid and simple assessments to be ...
Walsh, D., Reeves, R., Saul, D., Gray, R., MacKenzie, L., Bergquist, P., Bergquist, P.   +6 more
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PHYLOGENY OF THE EUGLENOPHYTES: ANALYSIS USING SSU RDNA AND ULTRASTRUCTURAL CHARACTERS

Journal of Phycology, 2000
The use of both molecular and morphological data to determine relationships among the euglenoids is vital for a complete understanding of their phylogeny, and the development of an accurate taxonomy. Analyses of the SSU (18S) rDNA from 12 euglenoid genera have resulted in tree topologies that are in agreement with many defining morphological characters.
E.W. Linton, R.E. Triemer
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Greater coverage of the phylum Nematoda in SSU rDNA studies

Biology and Fertility of Soils, 2011
The small subunit ribosomal gene (SSU rDNA) is used in both environmental and phylogenetic studies of nematodes. However, currently described SSU rDNA primers near to the 5′ end of the gene show mismatches with a number of different nematode sequences. Here a new SSU rDNA 5′ forward primer, Nem_SSU_F74, is designed from existing database sequences and ...
Suzanne Donn, Roy Neilson, Bryan S. Griffiths, Tim J. Daniell   +3 more
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Multiple Origins of Lichen Symbioses in Fungi Suggested by SSU rDNA Phylogeny

Science, 1995
Phylogenetic hypotheses provide a context for examining the evolution of heterotrophic lifestyles. The lichen lifestyle, which is the symbiotic association of fungi with algae, is found in various representatives of Dicaryomycotina, both Ascomycetes and Basidiomycetes.
A, Gargas, P T, DePriest, M, Grube, A, Tehler   +3 more
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Systematics of Mexiconema cichlasomae (Nematoda: Daniconematidae) Based on Sequences of SSU rDNA

Journal of Parasitology, 2011
The molecular characterization of the daniconematid dracunculoid Mexiconema cichlasomae Moravec, Vidal, and Salgado-Maldonado, 1992 through the sequencing of SSU rDNA from adult individuals is presented herein. Additionally, preliminary genetic relationships of this nematode are inferred from alignment of sequences generated previously for other ...
H H, Mejia-Madrid, M L, Aguirre-Macedo
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