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《Acta Agriculturae Boreali—Sinica》 2003-02
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Hereditary Characteristics of Heading and Flower Colors on Chinese Cabbage

ZHANG De shuang, ZHANG Feng lan, XU Jia b ing (Beijing Vegetable Research Center, Beijing 100089, China)  
F 1, F 2, BC 1 and BC 2 seeds were obtained through crossing, self crossin g and backcrossing by Chinese cabbage(Brassica campestris ssp. pekinensis)of yellow and white heading, orange and white heading , two white headings(one of parent′s flowers is also white) in order to study the hereditary characteristics of heading colors, flower colors and pertinency between them. Results showed Chinese cabbage heredity of orange and white flower colors was controlled by pairs of recessive allele. Heading colors of orange an d yellow showed different heredity characteristics. Heredity of orange heading w as controlled by pairs of recessive allele, while that of yellow heading showed quantity characteristics. F 1,BC 1 and BC 2 of yellow heading separated diffe rent white,yellow and middle color headin g types. Meanwhile orange heading and orange flower color were linked, that is, orange heading color showed the same flower color and heredity characteristics. While white and yellow heading colors were not linked to flower colors. Therefor e, for orange heading F 1, two parents must be orange heading,and for yellow he ading F 1,two parents must also be yellow heading.
【Fund】: 北京市自然基金资助项目 ( 5 992 0 0 7)
【CateGory Index】: S634.1
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