| 中国芹花粉母细胞减数分裂终变期的核型分析 |
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| 引用本文： | 赵冬,张蜀宁,郑金双,刘惠吉,侯喜林.中国芹花粉母细胞减数分裂终变期的核型分析[J].南京农业大学学报,2011,34(1). |
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| 作者姓名： | 赵冬 张蜀宁 郑金双 刘惠吉 侯喜林 |
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| 作者单位： | 南京农业大学园艺学院/作物遗传与种质创新国家重点实验室,江苏南京,210095 |
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| 基金项目： | 江苏省自然科学基金项目(BK2008314) |
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| 摘 要： | 以中国芹品种铁杆芹花蕾为材料,选取花粉母细胞减数分裂终变期进行染色体核型分析,将其与根尖染色体核型进行比较研究,并探讨了获得终变期分裂相的最佳制片方法。结果表明:二者核型公式均为K(2n)=2x=22=6m+2sm+8st+6t,其中第5、7、9对为中部着丝粒染色体,第6对为亚中部着丝粒染色体,第2、3、8、11对为近端部着丝粒染色体,第1、4、10对为端部着丝粒染色体,其染色体相对长度组成为2n=2S+2M1+6M2+1L,染色体核型为3B型。
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| 关 键 词： | 中国芹 花粉母细胞 核型分析 减数分裂终变期 |
Karyotype analysis for pollen mother cells meiosis diakinesis of Apium graveolens L. |
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| ZHAO Dong,ZHANG Shu-ning,ZHENG Jin-shuang,LIU Hui-ji,HOU Xi-lin.Karyotype analysis for pollen mother cells meiosis diakinesis of Apium graveolens L.[J].Journal of Nanjing Agricultural University,2011,34(1). |
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| Authors: | ZHAO Dong ZHANG Shu-ning ZHENG Jin-shuang LIU Hui-ji HOU Xi-lin |
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| Institution: | ZHAO Dong,ZHANG Shu-ning,ZHENG Jin-shuang,LIU Hui-ji,HOU Xi-lin(College of Horticulture/State Key Laboratory of Crop Genetics and Germplasm Enhancement,Nanjing Agricultural University,Nanjing 210095,China) |
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| Abstract: | Using flower buds,karyotype analysis of Apium graveolens L.during meiosis diakinesis in pollen mother cells was conducted,compared with chromosome karyotype of root tip,and the best way to obtain diakinesis chromosomes was discussed.The results were the same:karyotype formula of Apium graveolens L.was K(2n)=2x=22=6m+2sm+8st+6t,both of which had 3 pairs of metacentric chromosomes(5,7,9),1 pair of submetacentric chromosomes(6),4 pairs of with acrocentric chromosomes(2,3,8,11)and 3 pairs of telocentric chromos... |
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| Keywords: | Apium graveolens L pollen mother cell karyotype analysis meiosis diakinesis |
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