| 上农香、黑糯等品种及其杂交后代选系的染色体核型分析 |
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| 引用本文： | 吴爱忠,陆小毛,谈慕贞,陈德鑫. 上农香、黑糯等品种及其杂交后代选系的染色体核型分析[J]. 上海交通大学学报(农业科学版), 1995, 0(3) |
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| 作者姓名： | 吴爱忠 陆小毛 谈慕贞 陈德鑫 |
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| 作者单位： | 上海农学院植物科学系 |
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| 摘 要： | 本文采用经改良的常规制片法，对上农香糯、上农黑糯０７、太湖糯、铁桂丰四个品种及其杂交后代选系进行染色体核型分析。试验表明，它们的体细胞染色体核型，都是２ｎ＝２ｘ＝２４，但核型形式略有不同。按臂比值而定的着丝点位置有两种类型，即中央着丝点（ｍ）染色体和近中着丝点（ｓｍ）染色体，因此它们均为对称染色体核型。１２对同源染色体中，有一对是随体染色体。
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| 关 键 词： | 上农特种稻；杂种选系；染色体核型 |
KARYOTYPE ANALYSIS OF SHANGNONGFRAGRANT,BLACK GLUTINOUS RICE VARIETIES AND THEIR HYBRID LINES |
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| Wu Aizhong,Lu Xiaomao,Tan Muzen,Chen Dexing. KARYOTYPE ANALYSIS OF SHANGNONGFRAGRANT,BLACK GLUTINOUS RICE VARIETIES AND THEIR HYBRID LINES[J]. Journal of Shanghai Jiaotong University (Agricultural Science), 1995, 0(3) |
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| Authors: | Wu Aizhong Lu Xiaomao Tan Muzen Chen Dexing |
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| Abstract: | The analytical results of karyotype show that the somatic chromosome number of fourShangnong fragrant,black glutinous rice varieties and their three hybrid lines are 2n=2x=24.The karyotype of Shangnong fragrant glutinous rice is 2n=2x=16m+8sm(2SAT),Shangnong black glutinous rice07 is 2n=2x=16m+8sm (2SAT),Taihu glutinous rice is 2n=2x=14m+10sm(2SAT), Tieguifeng rice is2n=2x=14m+14sm (2SAT),line P36 is 2n=2x=12m+12sm(2SAT),line T14-2 is 2n=2x=14m+10sm(2SAT),line Z17-3 is 2n=2x=14m+10sm(2SAT),and these karyotype belong to fundamental symmetry.There is only one pair(K12) satellited among twelve homoloyous chromosomes in every karyotype. |
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| Keywords: | Shangnong special rice Hybrid lines Karyotype |
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