tunicate

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Related to urochordate: Cephalochordata, Cyclostomata

tunicate

or

urochordate

any minute marine chordate of the subphylum Tunicata, containing the sea squirts. They feed by ciliary action and lack a NOTOCHORD, though one is present in the tail of the tadpole larva.
References in periodicals archive ?
Systemic bud induction and retinoic acid signaling underlie whole body regeneration in the urochordate Botrylloides leachi.
Morphological consequences for multi-partner chimerism in Botrylloides, a colonial urochordate.
Allorecognition elements on urochordate histocompatibility locus indicate unprecedented extensive polymorphism.
Conservation of the developmental role of Brachyury in notochord formation in a urochordate, the ascidian Halocynthia roretzi.
A morphological study of nonrandom senescence in a colonial urochordate.
1 A), and both phyla make up the sister group of the chordate phylum, which includes urochordates, cephalochordates, and vertebrates (Castresana et al.
In Ciona intestinalis, the only urochordate for which comprehensive functional and gene expression data are available, homologs of neural plate border specifiers Pax3/7, Zic, and Msx are expressed in the epidermal cells at the lateral edges of the forming neural plate.
Urochordate species exhibit diverse forms, including free-swimming, sessile, and colonial.
Here we test the hypothesis that age of a specific developmental stage in the urochordate appendicularian Oikopleura dioica Fol, 1872, can be predicted from the number of endostyle cells and temperature, thus serving as such a reference system.
Coexisteuce and possible parasitism of somatic and germ cell lines in chimeras of the colonial urochordate Botryllus schlosseri.