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Deep phylogeny and evolution of sponges (phylum Porifera).
Sponges (phylum Porifera) are a diverse taxon of benthic aquatic animals of great ecological, commercial, and biopharmaceutical importance. They are arguably the earliest-branching metazoan taxon,… Expand
Non-monophyly of most supraspecific taxa of calcareous sponges (Porifera, Calcarea) revealed by increased taxon sampling and partitioned Bayesian analysis of ribosomal DNA.
- M. Dohrmann, O. Voigt, D. Erpenbeck, G. Wörheide
- Biology, Medicine
- Molecular phylogenetics and evolution
- 1 September 2006
Calcareous sponges (Porifera, Calcarea) play an important role for our understanding of early metazoan evolution, since several molecular studies suggested their closer relationship to Eumetazoa than… Expand
A fragmented metazoan organellar genome: the two mitochondrial chromosomes of Hydra magnipapillata
BackgroundAnimal mitochondrial (mt) genomes are characteristically circular molecules of ~16–20 kb. Medusozoa (Cnidaria excluding Anthozoa) are exceptional in that their mt genomes are linear and… Expand
Mitochondrial diversity of early-branching metazoa is revealed by the complete mt genome of a haplosclerid demosponge.
The first mitochondrial (mt) genomes of demosponges have recently been sequenced and appear to be markedly different from published eumetazoan mt genomes. Here we show that the mt genome of the… Expand
Placozoa – no longer a phylum of one
Abstract More than a century ago, the simplest of all metazoans was discovered and described as Trichoplax adhaerens . These tiny, flattened animals lack symmetry, mouth, gut, nervous system, and… Expand
The mitochondrial genomes of sponges provide evidence for multiple invasions by Repetitive Hairpin-forming Elements (RHE)
BackgroundThe mitochondrial (mt) genomes of sponges possess a variety of features, which appear to be intermediate between those of Eumetazoa and non-metazoan opisthokonts. Among these features is… Expand
Molecular evolution of rDNA in early diverging Metazoa: First comparative analysis and phylogenetic application of complete SSU rRNA secondary structures in Porifera
BackgroundThe cytoplasmic ribosomal small subunit (SSU, 18S) ribosomal RNA (rRNA) is the most frequently-used gene for molecular phylogenetic studies. However, information regarding its secondary… Expand
Molecular Phylogenetic Evaluation of Classification and Scenarios of Character Evolution in Calcareous Sponges (Porifera, Class Calcarea)
Calcareous sponges (Phylum Porifera, Class Calcarea) are known to be taxonomically difficult. Previous molecular studies have revealed many discrepancies between classically recognized taxa and the… Expand
Field biology of placozoans (Trichoplax): distribution, diversity, biotic interactions.
The goal of this review is to highlight what little is known, and point to the bulk of what is yet to be learned, about the natural history of placozoans in the field-in order to stimulate a broader… Expand
A homologue of the human STRIPAK complex controls sexual development in fungi
- S. Bloemendal, Yasmine Bernhards, +7 authors U. Kück
- Biology, Medicine
- Molecular microbiology
- 1 April 2012
Sexual development in fungi is a complex process involving the generation of new cell types and tissues – an essential step for all eukaryotic life. The characterization of sterile mutants in the… Expand