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Obtaining and Cytological Identification of a Set of Primary Trisomics in Cabbage
作者姓名:ZHANG  Cheng-he  ZHU  Hai-yan  LI  Xiao-feng  SHEN  Shu-xing  CHEN  Xue-ping  MAN  Hong  XUAN  Shu-xin
作者单位:College of Horticulture, Agricultural University of Hebei, Baoding 071001, P.R.China
摘    要:Selection of primary trisomics of the cabbage (Brassica oleracea var.capitata L) forms an important basis for gene chromosome mapping and for other genetic studies. The cabbage self-fertilization line - 9601 was used as material, using the root-tip cell chromosome number and pollen mother cell chromosome number identification and karyotype analysis to select the primary trisomics from the progenies of 3x x 2x in the cabbage. Many aneuploid plants with one or two extra chromosomes were obtained and a set of primary trisomics (Tri-1, Tri-2, Tri-3, Tri-4, Tri-5, Tri-6, Tri-7, Tri-8, and Tri-9, in which the Tri-1 and Tri-4 were from 2n+2 plants and others from 2n+ 1 plants) was acquired from these plants. Each trisomic exhibited some unique features, such as plant height, plant type, leaf type, size of flower bud, and inflorescence. The triploid crossing by the diploid is a convenient and effective way to select trisomics in the cabbage.

关 键 词:甘蓝  三体生物  核型  染色体

Obtaining and Cytological Identification of a Set of Primary Trisomics in Cabbage
ZHANG Cheng-he ZHU Hai-yan LI Xiao-feng SHEN Shu-xing CHEN Xue-ping MAN Hong XUAN Shu-xin.Obtaining and Cytological Identification of a Set of Primary Trisomics in Cabbage[J].Agricultural Sciences in China,2006,5(9):655-660.
Authors:ZHANG Cheng-he  ZHU Hai-yan  LI Xiao-feng  SHEN Shu-xing  CHEN Xue-ping  MAN Hong  XUAN Shu-xin
Abstract:Selection of primary trisomics of the cabbage (Brassica oleracea var.capitata L) forms an important basis for gene chromosome mapping and for other genetic studies. The cabbage self-fertilization line - 9601 was used as material, using the root-tip cell chromosome number and pollen mother cell chromosome number identification and karyotype analysis to select the primary trisomics from the progenies of 3x × 2x in the cabbage. Many aneuploid plants with one or two extra chromosomes were obtained and a set of primary trisomics (Tri-1, Tri-2, Tri-3, Tri-4, Tri-5, Tri-6, Tri-7, Tri-8, and Tri-9, in which the Tri- 1 and Tri-4 were from 2n + 2 plants and others from 2n + 1 plants) was acquired from these plants. Each trisomic exhibited some unique features, such as plant height, plant type, leaf type, size of flower bud, and inflorescence.The triploid crossing by the diploid is a convenient and effective way to select trisomics in the cabbage.
Keywords:cabbage (Brassica oleracea var  capitata L)  trisomics  karyotype analysis
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