| 我国某些蔷薇属花卉的核型研究 |
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| 引用本文： | .刘东华；.李懋学.我国某些蔷薇属花卉的核型研究[J].武汉植物学研究,1985,3(4):403-408. |
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| 作者姓名： | .刘东华；.李懋学 |
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| 作者单位： | 1.天津师范大学生物系；2.北京大学生物系 |
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| 摘 要： | 本文报道了我国产的5种和14个品种的蔷薇属花卉的染色体数目和核型,结果如下:小花型为二倍体,2n=2x=14,少数为混倍体;中花型为三倍体,2n=3x=21;大花型为四倍体,2n=4x=28。大部分种的核型均由其中部和近中部着丝点染色体组成,少数种具近端着丝点染色体。它们可以区分为3种核型类型,即1A、2A和1B。
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| 关 键 词： | 蔷薇属 核型 |
A STUDY ON KARYOTYPES OF SOME FLOWERS OF ROSA IN CHINA |
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| .Liu Donghua,.Li Maoxue.A STUDY ON KARYOTYPES OF SOME FLOWERS OF ROSA IN CHINA[J].Journal of Wuhan Botanical Research,1985,3(4):403-408. |
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| Authors: | Liu Donghua Li Maoxue |
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| Affiliation: | 1.Department of Biology, Tianjing Normal University;2.Department of Biology, Beijing University |
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| Abstract: | The present paper reports chromosome numbers and karyotypes of five species and fourteen varieties of Rosa from China. The results are as follows: the small-flowered forms with 2n=2x=14, but a few are mixoploids; the mediumflowered ones with 2n=3x=21; the big-flowered ones with 2n=4x=28. The karyotypes of most cultivars are made of m and sm and a few with st chromosomes. They fall into three types: 1A, 2A and 1B. |
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| Keywords: | Rosa Karyotype |
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