| 韭菜的小孢子四分体微核和核型的初步研究 |
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| 引用本文： | 张长顺.韭菜的小孢子四分体微核和核型的初步研究[J].植物学报,1999,16(3):288-292. |
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| 作者姓名： | 张长顺 |
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| 作者单位： | (云南教育学院生物系 昆明 650223） |
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| 摘 要： | 本文研究了昆明栽培的韭菜的小孢子染色体数目和核型，多数小孢子的染色体数目n=16，少数是非整倍体，核型公式为n=2x=16=14m+2st(SAT)。同时观察了韭菜的育性和小孢子四分体微核情况，育性和四分体微核率分别为48％、23.6％。上述结果说明韭菜的核型与前人曾报道过的韭菜的核型—样是同源四倍体。
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| 关 键 词： | 小孢子 染色体 核型 四分体微核 |
A Preliminary Study on the Tetrasporic Micronucleus and Karyotype of Microspores in Cultured Allium tuberosum |
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| ZHANG Chang-Shun.A Preliminary Study on the Tetrasporic Micronucleus and Karyotype of Microspores in Cultured Allium tuberosum[J].Bulletin of Botany,1999,16(3):288-292. |
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| Authors: | ZHANG Chang-Shun |
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| Institution: | (Department of Biology, Yunnan Educational College, Kunming 650223) |
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| Abstract: | In this paper, the chromosome numbers and karyotypes of Allum tuberosum were observed. The chromosome numbers of the most microspores are n= 16, a few are aneuploid. According to these facts, karyotype formula n= 2x = 16= 14m + 2st(SAT) was obtained. The fertility and tetrasporic micronucleus of microspore were observed too. They are 48% and 23.6% respectively. These results confirmed that the karyotype of Allium tuberosum is the isotetraplont which had been reported by others. |
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| Keywords: | , |
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