| 皖西天堂寨三种黄精属植物的核型研究 |
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| 引用本文： | 陈存武,周守标.皖西天堂寨三种黄精属植物的核型研究[J].安徽师范大学学报(自然科学版),2005,28(3):324-328. |
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| 作者姓名： | 陈存武 周守标 |
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| 作者单位： | 皖西学院,化学与生命科学系,安徽,六安,237012;安徽师范大学,生命科学学院,安徽,芜湖,241000 |
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| 摘 要： | 首次报道了皖西天堂寨三种黄精属(Polygonatum)植物的染色体数目和核型,结果如下:湖北黄精(P. zanlanscianense) 核型为20n=2x=28=10m 8sm 10st,染色体长度比值3.49,属于3B核型;多花黄精(P. cyrtonema)核型为 2n=2x=22=2m 18sm 4st, 染色体长度比值2.38,属于3B核型;玉竹(P. odoratum)核型为2n=2x=18=8m 10sm(3sc), 染色体长度比值2.84, 属于2B核型.分别与产自其它地区的同种植物的染色体数目和核型差异明显.
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| 关 键 词： | 湖北黄精 多花黄精 玉竹 核型 天堂寨 |
| 文章编号： | 1001-2443（2005）03-0324-05 |
| 收稿时间： | 2004-11-08 |
| 修稿时间： | 2004年11月8日 |
KARYOTYPE ANALYSIS OF THREE SPECIES OF POLYGONATUM MILL FROM TIANTANGZHAI,WEST ANHUI |
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| CHEN Cun-wu,ZHOU Shou-biao.KARYOTYPE ANALYSIS OF THREE SPECIES OF POLYGONATUM MILL FROM TIANTANGZHAI,WEST ANHUI[J].Journal of Anhui Normal University(Natural Science Edition),2005,28(3):324-328. |
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| Authors: | CHEN Cun-wu ZHOU Shou-biao |
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| Abstract: | The chromosome numbers and karyotype of three species of Polygonatum from Tiantangzhai, west Anhui were reported for the first time. The results show as follows: (1) The karyotype of Polygonatum zanlanscianense is 20n=2x=28=10m+8sm+10st, the ratio of the longest to the shortest 3.49, belong to Stebbins' (1971) 3B. (2) The karyotype of Polygonatum cyrtonema is 2n=2x=22=2m+18sm+4st, the ratio of the longest to the shortest 2.38, belong to Stebbins' (1971) 3B. (3) The karyotype of Polygonatum odoratum is 2n=2x=18=8m+10sm(3sc), the ratio of the longest to the shortest 2.84, belong to Stebbins' (1971) 2B. The chromosome numbers and karyotype of each species of Polygonatum from Tiantangzhai are obviously different from the results of the same species reported from other regions. |
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| Keywords: | polygonatum zanlanscianense P cyrtonema P odoratum karyotype tiantangzhai |
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