Chordates

Chordates
Lancelet Branchiostoma lanceolatum
Zebrafish Danio rerio
Medakafish Oryzias latipes
Fugu Takifugu rubripes
Frogs Xenopus laevis
Chicken Gallus gallus
Mouse Mus musculus (Mammalian embryogenesis) ...
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Chordates
Lancelet Branchiostoma lanceolatum
Zebrafish Danio rerio
Frogs Xenopus laevis
Chicken Gallus gallus
Mouse Mus musculus (Mammalian embryogenesis) ...
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chordates: animals with rods along their backs, including reptiles, amphibians, birds, and mammals.
chromatid: homologous chromosomes joined to each other at the centromere; present during the prophase of mitosis.
chromatin: compacted DNA and protein.
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Chordates have a dorsal rather than ventral nervous system. Several evolutionary trends occur in chordates: spinal cord, continuation of cephalization in the form of larger and more complex brains, and development of a more elaborate nervous system.
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Chordates (Phylum Chordata)
During their embryonic development, all chordates pass through a stage called the pharyngula [View] with these features: ...
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chordates Animals that display a hollow dorsal nerve cord, gill slits, and a notochord. Includes the protochordates and the vertebrates.
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protochordates
. It also has a well-characterized allorecognition system called
Fu/HC
whose functions are prevention of fusion with non-kin and selective fertilization by sperm bearing
Fu/HC
alleles different from that of the egg.
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pharyngeal slits -- Characteristic of chordates, pharyngeal slits are openings through which water is taken into the pharynx, or throat.
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To begin this analysis, we are using several different sets of genes as test cases to develop an integrated and automated pipeline to analyze orthologs and paralogs in chordates.
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Ancient chordates-forerunners of fish, of frogs, of chickens, of humans-had a single Hox cluster with probably thirteen genes in them.
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deuterostomes - broad classification of triploblastic animals including echinoderms and chordates that tend to share certain embryological traits; among these the formation of the "mouth second" (hence the name) during gastrulation, ...
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a ciliated, mucus-secreting groove in the ventral surface of the pharnyx of non-vertebrate chordates (e.g, tunicates and lancelets); it aids in transporting food to the esophagus.
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One of two distinct evolutionary lines of coelomates, consisting of the echinoderms and chordates and characterized by radial, indeterminate cleavage, enterocoelous formation of the coelom, and development of the anus from the blastopore.
development ...
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deuterostome
An evolutionary line of coelomates (ex. echinoderms and chordates) that are characterized by radial, indeterminate cleavage and development of the anus from the blastopore.
Covered in Lab 13 Animal Diversity III ...
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Sponges, Cnidarians, Flatworms, Roundworms
Mollusks, Annelids, Arthropods
Echinoderms, Chordates
Frog Dissection
Animal Tissues ...
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A group of Metazoans that exhibit indeterminate, radial cleavage and that develop a mouth independent of, and at some distance from, the blastopore. (Echinoderms and Chordates and related minor phyla).
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