ArticleProceedings. Biological sciences1999
Evolutionary relationships of Metazoa within the eukaryotes based on molecular data from Porifera.
Article in Proceedings. Biological sciences, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 86 citations in OpenAlex.
- Characterization of HOL-30: a novel tandem-repeat galectin from the marine spongeBBA advances · 2025Article
- Near-Infrared 810 nm Light Affects PoriferaInternational journal of molecular sciences · 2022Article
- Substantive Morphological Descriptions, Phylogenetic Analysis and Single Nucleotide Polymorphisms ofFrontiers in microbiology · 2022Article
- Inorganic Polyphosphates As Storage for and Generator of Metabolic Energy in the Extracellular Matrix.Chemical reviews · 2019Review
- The Understanding of the Metazoan Skeletal System, Based on the Initial Discoveries with Siliceous and Calcareous Sponges.Marine drugs · 2017Review
- Article
- K₂p channels in plants and animals.Pflugers Archiv : European journal of physiology · 2015Review
- The enzyme carbonic anhydrase as an integral component of biogenic Ca-carbonate formation in sponge spicules.FEBS open bio · 2013Article
- Article
- The largest Bio-Silica Structure on Earth: The Giant Basal Spicule from the Deep-Sea Glass Sponge Monorhaphis chuni.Evidence-based complementary and alternative medicine : eCAM · 2011Article
- Concatenated analysis sheds light on early metazoan evolution and fuels a modern "urmetazoon" hypothesis.PLoS biology · 2009Article
- Phylogenetic analyses under secondary structure-specific substitution models outperform traditional approaches: case studies with diploblast LSU.Journal of molecular evolution · 2007Article
- Mitochondrial genome of Trichoplax adhaerens supports placozoa as the basal lower metazoan phylum.Proceedings of the National Academy of Sciences of the United States of America · 2006Article
- ITS-2 and 18S rRNA gene phylogeny of Aplysinidae (Verongida, Demospongiae).Journal of molecular evolution · 2005Article
- Reconstructing early sponge relationships by using the Burgess Shale fossil Eiffelia globosa, Walcott.Proceedings of the National Academy of Sciences of the United States of America · 2005Article
- Evolution of metazoan cell junction proteins: the scaffold protein MAGI and the transmembrane receptor tetraspanin in the demosponge Suberites domuncula.Journal of molecular evolution · 2004Article
- Evaluating hypotheses of basal animal phylogeny using complete sequences of large and small subunit rRNA.Proceedings of the National Academy of Sciences of the United States of America · 2001Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Recent molecular data provide strong support for the view that all metazoan phyla, including Porifera, are of monophyletic origin. The relationship of Metazoa, including the Porifera, to Plantae, Fungi and unicellular eukaryotes has only rarely been studied by using cDNAs coding for proteins. Sequence data from rDNA suggested a relationship of Porifera to unicellular eukaryotes (choanoflagellates). However, ultrastructural studies of choanocytes did not support these findings. In the present study, we compared amino acid sequences that are found in a variety of metazoans (including sponges) with those of Plantae, Fungi and unicellular eukaryotes, to obtain an answer to this question. We used the four sequences from 70 kDa heat-shock proteins, the serine-threonine kinase domain found in protein kinases, beta-tubulin and calmodulin. The latter two sequences were deduced from cDNAs, isolated from the sponge Geodia cydonium for the phylogenetic analyses presented. These revealed that the sponge molecules were grouped into the same branch as the Metazoa, which is statistically (significantly) separated from those branches that comprise the sequences from Fungi, Plantae and unicellular eukaryotes. From our molecular data it seems evident that the unicellular eukaryotes existed at an earlier stage of evolution, and the Plantae and especially the Fungi and the Metazoa only appeared later.
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