Ciona robusta is a species of marine invertebrate in the genus Ciona of the family Cionidae. The holotype was collected on the northeastern coast of Honsyu Island, Japan. Populations of Ciona intestinalis known as Ciona intestinalis type A found in the Mediterranean Sea, the Pacific Ocean, West coast of North America, and the Atlantic coasts of South Africa have been shown to be Ciona robusta.
C. robusta is a delineation of C. Intestinalis. In the early 2000’s, molecular research concluded that C. intestinalis was composed of four distinct lineages named type A, B, C and D. Conia intestinalis type A was later reclassified as C. robusta. It was not until 2015 that the four different classifications of C. intestinalis were accepted into the scientific community, and thus reported on.
- "Ciona robusta Hoshino & Tokioka, 1967". WoRMS. Retrieved 12 March 2018.
- Brunetti, Riccardo; Gissi C; Pennati R; Caicci F; Gasparini F; Manni L (2015). "Morphological evidence that the molecularly determined Ciona intestinalis type A and type B are different species: Ciona robusta and Ciona intestinalis". Journal of Zoological Systematics and Evolutionary Research. 53 (3): 186–193. doi:10.1111/jzs.12101.
- Malfant, Marine; Darras, Sebastien; Viard, Viard (24 January 2018). "Coupling molecular data and experimental crosses sheds light about species delineation: a case study with the genus Ciona". Scientific Reports. 8 (1): 1480. doi:10.1038/s41598-018-19811-2. PMC 5784138. PMID 29367599.
- Cione robuste: Ciona robusta - Hoshino & Tokioka, 1967, DORIS
- ANISEED, the Tunicate model organism database
- Ghost: genomic and cDNA resources from Kyoto University
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