Bilateria


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Bilateria

[‚bī·lə′tir·ē·ə]
(zoology)
A major division of the animal kingdom embracing all forms with bilateral symmetry.
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References in periodicals archive ?
Work on cnidarians suggests that their Pax-6 ortholog may have evolved from an ancestral PaxB-like gene that duplicated after the separation of Bilateria from Cnidaria (Kozmik et al.
Molecular Evolution of Spider Vision: New Opportunities, Familiar Players
Homeobox genes are involved in body plan formation and in the regulation of many developmental processes in bilateria.
Hox, Parahox, EHGbox, and NK genes in bivalve molluscs: evolutionary implications
La evidencia sugiere que el conjunto completo de genes Hox ya se encontraba en el ancestro de toda la linea bilateria, en el precambrico, estableciendo desde entonces el orden fundamental del plan corporal de este linaje (Maynard-Smith y Szathmary, 1999; Gould, 2002; Raff, 1996; Burke y Brown, 2003).
Constrenimientos, variacion evolutiva y planos corporales
Evidence for a diverse cys-loop ligand- gated ion channel superfamily in early bilateria.
IMMUNOSTIMULATORY EFFECT OF IVERMECTIN ON MACROPHAGE ENGULFMENT AND DELAYED TYPE HYPERSENSITIVITY IN BROILERS
Phylogenetic analysis of complete small subunit ribosomal RNA coding region of Myxidium lieberkuehni: evidence that Myxozoa are Metazoa and related to Bilateria.
Prevalence of Henneguya branchialis in Catfish (Clarias gariepinus) in Ismailia, Egypt
According to this divergence model, one or a few ancestral "eye genes," for example the regulatory gene Pax6, evolved in the ancestral bilateria, resulting in the first eyespot.
Evolution: do the eyes have it?
Consideration of RNA secondary structure significantly improves likelihood-based estimates of phylogeny: examples from the Bilateria.
Unusually long Hyptiotes (Araneae, Uloboridae) sequence for small subunit (18S) ribosomal RNA supports secondary structure model utility in spiders
On the other hand, Bilateria, which include worms, mollusks, insects, and vertebrates, did not descend directly from this "spongy" ancestor.
Humans didn't descend from a sponge, reveals analysis
The Invertebrates: Platyhelminthes and Rhynchocoela, the Acoelomate Bilateria, Vol.
The developmental role of the extracellular matrix suggests a monophyletic origin of the kingdom Animalia
The Invertebrates: Echinodermata, the Coelomate Bilateria.
Coelomic transport and clearance of durable foreign bodies by starfish (Asterias rubens)
Attempts to draw a linear evolutionary origin from cnidarians to the bilateria will always be complicated by the differences in body symmetry and the resultant need for nervous system specialization related to those different body forms.
Organization of the ectodermal nervous structures in jellyfish: scyphomedusae
The Invertebrates: Smaller Coelomate Groups: Chaetognatha, Hemichordata, Pogonophora, Phoronida, Ectoprocta, Brachipoda, Sipunculida, the Coelomate Bilateria.
A new copepod with transformed body plan and unique phylogenetic position parasitic in the acorn worm Ptychodera flava

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