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Taxon: Citrus ×yuko hort. ex Tanaka

Genus: Citrus
Family: Rutaceae
Subfamily: Aurantioideae
Tribe: Aurantieae
Subtribe: Citrinae
Nomen number: 314335
Place of publication: Ishii, Cycl. Hort. (Engei Daijiten) 1:535. 1944
Link to protologue:
Comment: Citrus × aurantium × C. cavaleriei
Name Verified on: 12-Jan-1989 by ARS Systematic Botanists.
Accessions: 1 (1 active, 0 available) in National Plant Germplasm System

Economic Importance:

  • Food additives: flavoring (essential oils used from fruits)

Distributional Range:


    • EASTERN ASIA: Japan


  1. Abkenar, A. A. et al. 2008. Comparative analysis of organelle DNAs in acid citrus grown in Japan using PCR-RFLP method. Genet. Resources Crop Evol. 55:487-492.
  2. Carpenter, J. B. & P. C. Reece. 1969. Catalog of genera, species, and subordinate taxa in the orange subfamily Aurantioideae (Rutaceae).
  3. Fang, D. et al. 1998. Phylogenetic relationships among selected Citrus germplasm accessions revealed by inter-simple sequence repeat (ISSR) markers. J. Amer. Soc. Hort. Sci. 123:612-617.
  4. Nito, N. et al. 2007. Germplasm conservation of indigenous Citrus. Acta Hort. 760:105-108. Note: a cultivar maintained for potential breeding purposes
  5. Njoroge, S. M. et al. 1994. Volatile components of the essential oils from Kabosu, Daidai and Yuko, Japanese sour citrus fruits. Flav. Fragr. J. 9:289-297.
  6. Penjor, T. et al. 2013. Phylogenetic relationships of Citrus and its relatives based on matK gene sequences. PLoS One 8(4): e62574.
  7. Tanaka, T. 1954. Species problem in Citrus: a critical study of wild and cultivated units of Citrus, based upon field studies in their native homes. Revisio Aurantiacearum. 9:128. Note: Maruzen Co. Ltd, Tokyo.

Check other web resources for Citrus ×yuko hort. ex Tanaka :

  • Mansfeld: Mansfeld's World Databas of Agricultural and Horticultural Crops
  • ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
  • AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
  • Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.
  • PubAg: USDA's National Agricultural Library database of full-text journal articles and citations on the agricultural sciences.

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2020. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=314335. Accessed 8 August 2020.