Results 131 to 140 of about 5,085 (169)
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Phylogenetic Position of Psalteriomonas lanterna Deduced from the SSU rDNA Sequence
Journal of Eukaryotic Microbiology, 1997ABSTRACT. 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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Antonie van Leeuwenhoek, 2019
Microbial communities are important regulators of many processes in all ecosystems. Understanding of ecosystem processes requires at least an overview of the involved microorganisms. While in-depth identification of microbial species in environmental samples can be achieved by next generation sequencing, profiling of whole microbial communities can be ...
Alexander Guhr, Alfons R. Weig
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Microbial communities are important regulators of many processes in all ecosystems. Understanding of ecosystem processes requires at least an overview of the involved microorganisms. While in-depth identification of microbial species in environmental samples can be achieved by next generation sequencing, profiling of whole microbial communities can be ...
Alexander Guhr, Alfons R. Weig
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An exceptional group-I intron-like insertion in the SSU rDNA of lichen mycobionts
Current Genetics, 1999An exceptional group-I intron-like insertion at position 940 of the nuclear small subunit rDNA is found in lichen mycobionts of the families Parmeliaceae and Lecanoraceae. This shared insertion site is exceptional as it follows a G. Although several features of the self-splicing Tetrahymena intron are missing, the conserved structure of the presumed ...
M, Grube +5 more
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Variable sizes of introns in the SSU rDNA in three species of Roccella (Arthoniales, Euascomycetes)
Current Genetics, 1999Three species of the lichenized fungus Roccella (Arthoniales, Euascomycetes), R. canariensis, R. tuberculata and R. montagnei, were found to possess insertions in the first half of the nuclear SSU rDNA. Both the number and the type of these insertions varied between and within species. At position 516 the insertions belonged to group-IC1 introns with a
L, Myllys, M, Källersjö, A, Tehler
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Marine Micropaleontology, 2006
Abstract The phylogenetic position of an enigmatic calcareous nannoplankton Braarudosphaera bigelowii , whose taxonomic position has long been questioned, was investigated using molecular genetic methods. The SSU rDNA sequences of B. bigelowii were obtained using a single cell PCR technique independently from two single cells isolated from field ...
Yoshihito Takano +2 more
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Abstract The phylogenetic position of an enigmatic calcareous nannoplankton Braarudosphaera bigelowii , whose taxonomic position has long been questioned, was investigated using molecular genetic methods. The SSU rDNA sequences of B. bigelowii were obtained using a single cell PCR technique independently from two single cells isolated from field ...
Yoshihito Takano +2 more
exaly +2 more sources
PHYLOGENY OF THE EUGLENOPHYTES INFERRED FROM SSU AND LSU rDNA
Journal of Phycology, 2001Zimmermann, S. & Triemer, R. E.Department of Life Sciences, Rutgers University, Piscataway, NJ 08854 USAThe phylogeny of the Euglenophytes has previously been examined using the SSU rDNA. Results from these analyses indicated that the phototrophic genera are not monophyletic. To test this hypothesis, a second gene was sequenced, the LSU rDNA.
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Small insertions at a shared position in the SSU rDNA of Lecanorales (lichen-forming Ascomycetes)
Current Genetics, 1998Small insertions are reported from the SSU rDNA of the genera Cladonia, Cladina, Stereocaulon, Pertusaria and Physcia (lichen-forming Lecanorales, Ascomycetes). The insertions range in length from 56 to 81 nucleotides, and occur at a shared position, 330 (relative to Escherichia coli), in a semi-conserved region of the SSU rDNA.
S, Stenroos, P T, DePriest
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Phylogenetic relationships ofSphaerophoraceae (Ascomycetes) inferred from SSU rDNA sequences
Plant Systematics and Evolution, 1998SSU 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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Mycopathologia, 2008
Hypocrealean arthropod pathogenic fungi have profound impact on the regulation of agricultural and medical pests. However, until now the genetic and phylogenetic relationships among species have not been clarified, such studies could clarify host specificity relationships and define species boundaries.
Daniel R, Sosa-Gómez +4 more
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Hypocrealean arthropod pathogenic fungi have profound impact on the regulation of agricultural and medical pests. However, until now the genetic and phylogenetic relationships among species have not been clarified, such studies could clarify host specificity relationships and define species boundaries.
Daniel R, Sosa-Gómez +4 more
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Patterns of Group I Intron Presence in Nuclear SSU rDNA of the Lichen Family Parmeliaceae
Journal of Molecular Evolution, 2007Group I introns are commonly reported within nuclear SSU ribosomal DNA of eukaryotic micro-organisms, especially in lichen-forming fungi. We have studied the primary and secondary structure of 70 new nuclear SSU rDNA group I introns of Parmeliaceae (Ascomycota: Lecanorales) and compared them with those available in databases, covering more than 60 ...
Gabriel, Gutiérrez +4 more
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