| 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]. 植物学通报, 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 |
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| 基金项目： | 云南教育学院自然科学基金 |
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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％、２３６％。上述结果说明韭菜的核型与前人曾报道过的韭菜的核型一样是同源四倍体。
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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 MICRO NUCLEUS AND KARYOTYPE OF MICROSPORES IN CULTURED ALLIUM TUBEROSUM |
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| ZHANG Chang Shun. A PRELIMINARY STUDY ON THE TETRASPORIC MICRO NUCLEUS AND KARYOTYPE OF MICROSPORES IN CULTURED ALLIUM TUBEROSUM[J]. Chinese Bulletin of Botany, 1999, 16(3): 288-292 |
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| Authors: | ZHANG Chang Shun |
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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: | Microspore Chromosome Karyotype Tetrasporic micronucleus |
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