Urochordata

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Related to Urochordates: Cephalochordates

Urochordata

[¦yu̇r·ə·kȯr′däd·ə]
(invertebrate zoology)
The equivalent name for Tunicata.

Urochordata

 

a subphylum of chordate animals; synonym of Tunicata; members of the subphylum have a notochord in the larval stage of development (hence the name).

References in periodicals archive ?
Conservation of the developmental role of Brachyury in notochord formation in a urochordate, the ascidian Halocynthia roretzi.
Conversely, other interactions related to later events in nervous system formation that occur after neural crest induction in vertebrates appear to be conserved between urochordates and vertebrates.
Evolutionary history of free-swimming and sessile lifestyles in urochordates as deduced from 18S rDNA molecular phylogeny.
Urochordate species exhibit diverse forms, including free-swimming, sessile, and colonial.
The positive correlation was not significant in the spiralians or urochordates, perhaps because of the small sample sizes.
Within the urochordates, the correlation coefficient for egg diameter and cell cycle duration was high but not significant with the small sample of three species.
Developmental expression of Pax 1/9 genes in urochordate and hemichordate gills: insight into function and evolution of the pharyngeal epithelium.
Colonies of the cosmopolitan urochordate Botryllus schlosseri may undergo natural transplantation reactions upon allogenic contacts between their peripheral blood vessels.
Coexistence and possible parasitism of somatic and germ cell lines in chimeras of the colonial urochordate Botryllus schlosseri.
Phagocyte dynamics in a highly regenerative urochordate: insights into development and host defense.
Systemic bud induction and retinoic acid signaling underlie whole body regeneration in the urochordate Botrylloides leachi.
Cytokine-like activity of a humoral opsonin from the solitary urochordate Styela cleva.