Polyphyly of "Sclerosponges" (Porifera, Demospongiae) Supported by 28S Ribosomal Sequences
نویسندگان
چکیده
منابع مشابه
Genetic characterization of the Psilotrema (Digenea: Psilostomatidae) genus by partial 28S ribosomal DNA sequences.
In the present study, we successfully amplified the 28S ribosomal DNA of 3 species of the Psilotrema genus (Psilotrema oschmarini Besprozvannykh, 2007, P. acutirostris Oschmarin, 1963 and P. simillimum Muhling, 1989) from the Russian Far East. The genetic divergence between these species was estimated, and the phylogenetic relationships of the Psilotrema genus and the Psilostomatidae family wer...
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Comparative analysis of ribosomal RNA (rRNA) sequences has elucidated phylogenetic relationships. However, this powerful approach has not been fully exploited to address ribosome function. Here we identify stretches of evolutionarily conserved sequences, which correspond with regions of high functional importance. For this, we developed a structurally aligned database, FLORA (full-length organi...
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متن کاملClustering of trichothecene-producing Fusarium strains determined from 28S ribosomal DNA sequences.
The genus Fusarium includes several species that produce trichothecenes. We analyzed DNA sequences from a variable region at the 5' end of the large nuclear ribosomal DNA (rDNA) (28S) to determine the genetic relatedness of trichothecene-producing Fusarium species. All trichothecene-producing strains clustered together, and two monophyletic groups were resolved. The first clade included strains...
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ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1997
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1542938