A Numerical Taxonomic Study of Citrus and Its Close Relatives

Zhong Guang-yan, Ye Yin-min

Received:1900-01-01 Revised:1900-01-01 Online:1993-05-18 Published:1993-05-18
Contact: Zhong Guang-yan

Abstract:

Fifty nine taxa of Citrus, Fortunella and Poncirus were studied by

hierarchical agglomerative clustering analysis and quantas type 3 analysis using 86

morphological characters. Five affinity groups were obtained in Citrus. The first

group includes C. medica, C. limon, C. limonia, C. aurantifolia and C. iambhiri;

the second includes C. grandis, C. aurantium, C. sinensis and C. paradisi;

the third is mandarin (C. reticulata); the forth is C. ichangensis; The last is C.

hongheensis. Mandarin oranges show two subgroups: one comprise satsuma,

King, Shagan, Tankan and Bendiguangju, and the other consists of the remaining

typical mandrins. The two papeda oranges, honghe papeda and ichang papeda,

could not be clustered into the same group, indicating that they might have

evolved from two compeletly different ancestors. Pumelos(C. grandis) show some

relationships to honghe papeda orange. C. limonia is assumed to be a hybrid be-

tween rough lemon and mandarin. The sweet orange(C. sinensis) is considered to

be the offspring of pomelo and mandarin. Zhekiang jinju a small mandarin gener-

ally considered similar to calamondin in China, should be a true mandarin orange

based on our results. Poncirus was well distinguished from the other two genera,

Citrus and Fortunella, by the numerical methods used in this study. Our results

show that citron (C. medica), mandarin (C. reticulata) and pumelo (C. grandis)

are the original species of the subgenus Citrus, which was congruent with the re-

sults obtained by Barrett and Soost (1976), Potvin (1983) and Handa (1985).

Key words: Citrus, Fortunella, Poncirus, Numerical taxonomy

Zhong Guang-yan, Ye Yin-min. A Numerical Taxonomic Study of Citrus and Its Close Relatives[J]. .

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[3]	Fang De-qiu, Zhang Wen-cai, Xiao Shun-Yuan. Studies on Taxonomy and Evolution of Citrus and Its Related Genera by Isozyme Analysis [J]. , 1993, 31(4): 329-352.
[4]	Zhong Guang-yan, Ye Yin-min, Chen Zhu-sheng, Wu Yun-lun. A Study on Glutamate Oxaloacetate Transaminase Isozymes of Citrus Germplasm Resources [J]. , 1993, 31(2): 162-169.
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[6]	Zhong Guang-Yan, Ye Yin-Min. Study on Peroxidase Isozymes in Citrus and Fortunella [J]. , 1991, 29(5): 418-422.
[7]	Xi Jing-Qing, Mao Zong-Xiu, Yang Jian-Wei, Xi Ke-Chun. A Study on Numerical Taxonomy of Dioscoreaceae Plants in Zhejiang Province [J]. , 1990, 28(6): 442-451.
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[10]	Lu An-Ming, Zhang Zhi-Yun. Studies on the Genus Schizopepon Maxim. (Cucurbitaceae) [J]. , 1985, 23(2): 106-120.

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