Koji orange
| Koji orange | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Sapindales |
| Family: | Rutaceae |
| Genus: | Citrus |
| Species: | C. leiocarpa
|
| Binomial name | |
| Citrus leiocarpa | |
| Forms | |
| |
| Synonyms | |
Koji orange (Citrus leiocarpa), also called smooth-fruited orange in English, bingyul in Korean, 光橘 (Guang ju), 柑 子 (Gan zi), and 日本土柑 (Ri ben tu gan) in Chinese, and コウジ (Kouji) in Japanese, is a Citrus species native to Japan.[1]
Distribution
Besides Japan, it is grown in the United States, South Korea, and China.[2]
Description
The fruit is oblate in shape, slightly ribbed, bright orange in color, very small, and very seedy, and for the latter two reasons it is not grown for commercial use. It ripens from October through November and has been cultivated since at least 1900. The tree is densely branched and has a broad crown and a short, straight trunk. It may be monoembryonic. The leaves are dark green and elliptical in shape.[1]
Genetics
Citrus leiocarpa is inferred to be a hybrid between a koji-type species (seed parent) and the tachibana orange (pollen parent, Citrus tachibana). Its genotype matches with that of the komikan and toukan varieties.[3]
Varieties
Citrus leiocarpa f. monoembryota, a form of Citrus leiocarpa, was described by Chozaburo Tanaka. Once believed to be a mutation of the koji orange, it has been revealed that it is a hybrid between koji and kishu.[3] In Chinese, it is called 駿河柑子 (Jun he gan zi) and is called スルガユコウ (Suruga yukou) and 駿河柚柑 (Suruga yuzukan) in Japanese.[4]
Taxonomy
It is treated as a synonym of Citrus aurantium in taxonomy.[2]
See also
References
- ^ a b "CRC3147". citrusvariety.ucr.edu. Retrieved 18 January 2021.
- ^ a b "Citrus leiocarpa hort. ex Tanaka". www.gbif.org. Retrieved 18 January 2021.
- ^ a b Shimizu, Tokurou; Kitajima, Akira; Nonaka, Keisuke; Yoshioka, Terutaka; Ohta, Satoshi; Goto, Shingo; Toyoda, Atsushi; Fujiyama, Asao; Mochizuki, Takako; Nagasaki, Hideki; Kaminuma, Eli; Nakamura, Yasukazu (30 November 2016). "Hybrid Origins of Citrus Varieties Inferred from DNA Marker Analysis of Nuclear and Organelle Genomes". PLOS ONE. 11 (11): e0166969. Bibcode:2016PLoSO..1166969S. doi:10.1371/journal.pone.0166969. PMC 5130255. PMID 27902727.
{{cite journal}}: CS1 maint: unflagged free DOI (link) - ^ "M.M.P.N.D. - Sorting Citrus names part1". www.plantnames.unimelb.edu.au. Retrieved 12 February 2021.