| 沙田柚及其芽变株系的染色体核型和Giemsa带型比较研究 |
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| 引用本文： | 段映池,程尧楚,蒋佐升,刘克颐.沙田柚及其芽变株系的染色体核型和Giemsa带型比较研究[J].湖南农业大学学报(自然科学版),1991(1). |
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| 作者姓名： | 段映池 程尧楚 蒋佐升 刘克颐 |
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| 作者单位： | 湖南农学院农学系 长沙
(段映池，程尧楚，蒋佐升)，湖南农学院科研推广处 长沙(刘克颐) |
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| 摘 要： | 对沙田柚及其芽变株等4个材料的染色体核型及Giemsa带型进行了研究,结果表明,这些材料染色体数目的众数为2n=18,第6对染色体带随体,染色体长度比在2至3之间,臂指数(N.F)为36,核型属于1B类型。染色体核型不对称系数(A.S.K%)变化范围在56.99%～59.54%之间,均为对称型核型。7个材料Giemsa带型主要是着丝点带、端带和全带。
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| 关 键 词： | 柚子 染色体组型 G带 |
KARYOTYPE AND GIEMSA-BANDING PATTERN IN SHA-TIAN- YU AND ITS BUD MUTATION |
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| Duan Yingchi,Cheng Yaochu,.KARYOTYPE AND GIEMSA-BANDING PATTERN IN SHA-TIAN- YU AND ITS BUD MUTATION[J].Journal of Hunan Agricultural University,1991(1). |
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| Authors: | Duan Yingchi Cheng Yaochu |
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| Abstract: | Studies of the karyotype and Giemsa bands of seven shaddocks(Citurs grandis (L.) Osbeck Var.) show that chromosome numbers of them areall 2n=18;the 6 th pair chromosome in the Seven shaddocks genomes carrysatelitc chromosome;the ratio of chromosome length is between 2 and 3; thevalues of N.F. of all saddocks are 36; the asymmetrical coefficient of karyo-type changes from 56.99% to 59.54%; and the Giemsa bands of all shaddocksare mainly centromeric, tolomere and whole bands. |
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| Keywords: | citrus grandis idiogram G band |
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