Using these sequences, we generated a taxonomically broader phylogenetic tree based upon the ketosynthase domains of FAS and PKS genes (Fig. 6). Many of the mollusc FAS-like genes, as well as several from other animal phyla, fall in a single large group that includes animal FAS. By ...
Although widely accepted, not all recent molecular phylogenetic analyses have supported the tripartite structure of the new animal phylogeny. Furthermore, even if the small ribosomal subunit (SSU) based phylogeny is correct, there is a frustrating lack of resolution of relationships between the phyla ...
Here, we comprehensively analyze the PDGF/VEGF growth factors throughout all animal phyla and propose a phylogenetic tree. Vertebrate whole-genome duplications play a role in expanding PDGF/VEGF diversity, but several limited duplications are necessary to account for the temporal pattern of emergence....
However, with respect to the deepest splits in the metazoan Tree of Life-the relationships between Bilateria and the four non-bilaterian phyla (Porifera, Placozoa, Ctenophora, and Cnidaria)-no consensus has been reached yet, since a number of different, often contradictory, hypotheses with ...
Herein, newmethod “evo-Linnaean”classification animalphyla: usecommonly used Linnaean ranks combineeach successivenumbering system systemcan easily cope alllevels phylogenetictree. Life:5th December 2011 http://www.catalogueoflife.org/ (accessed 18Dec. 2011) Zootaxa 3148 2011Magnolia Press ANIMAL...
According to our results, all non-bilaterian phyla, as well as total-group Bilateria, evolved in an ancient radiation during a geologically relatively short time span, before the onset of long-term global glaciations (“Snowball Earth”; ~720–635 Ma). Importantly, this result appears ...
FIGURE 6.13.Phylogenetic tree of major vertebrate groups and their time of divergence. Arrows indicate presumed genome duplications according to (O)Ohno (1970)and (H)Holland et al. (1994). The advent of DNA sequence–based analysis provided more reliable evidence for the hypothesis of two rounds...
Muscle cells are generally thought to have originated only once in ancient animal history, and decisive insights about their early evolution are expected to come from expression studies of Myosin II genes in the two non-bilaterian phyla that possess muscles, the Cnidaria and Ctenophora. Results ...
At the time of publication, the animal traits database contained over 3500 observations from over 200 data sources. The almost 2000 terrestrial species in the database came from over 1000 genera, 350 families, 90 orders and four phyla (Chordata, Arthropoda, Annelida, Mollusca). For the majority...
(Fig.4A). For many phyla, the overall microbiota proportion did not significantly change throughout the four groups, showing an unchanged baseline in the piglet microbiome. However, some changes to a significantly high degree were observed in some specific phyla that were modulated either by ...