| 四种风毛菊属植物的核型研究 |
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| 引用本文： | 黄运平, 尹祖棠,.四种风毛菊属植物的核型研究[J].广西植物,1994,14(4):357-360. |
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| 作者姓名： | 黄运平 尹祖棠 |
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| 作者单位： | 北京师范大学生物系 |
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| 摘 要： | 本文首次报道产于我国华北地区风毛菊属（ＳａｕｓｓｕｒｅａＤＣ．）４种植物的染色体数目和核型。四个种的染色体数目均是２ｎ＝２６，都是２倍体。它们的核型是：糠风毛菊（Ｓ．Ｐａｌｅａｔａ）Ｚｎ＝２ｘ＝２６＝１８ｍ＋６ｓｍ＋２ｓｔ，属２Ｂ型，华北风毛菊（Ｓ．ｍｏｎｇｏｌｉｃａ）Ｚｎ＝２ｘ＝２６＝１４ｍ＋４ｓｍ＋８ｓｔ，属２Ｂ型；狭苞凤毛菊（Ｓ．ｄｉｅｌｓｉａｎａ）Ｚｎ＝２ｘ＝２６＝８ｍ＋１２ｓｍ＋６ｓｔ，属２Ｃ型；银背凤毛菊（Ｓ．ｎｉｖｅａ）２ｎ＝２ｘ＝２６＝１８ｍ＋６ｓｍ＋２ｓｔ，属２Ａ型。染色体中均未发现随体。
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| 关 键 词： | 凤毛菊属 核型 |
A STUDY ON KARYOTYPES OF 4 SPECIES OF SAUSSUREA FROM NORTH CHINA |
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| Hnang Yunping and Yin Zutang.A STUDY ON KARYOTYPES OF 4 SPECIES OF SAUSSUREA FROM NORTH CHINA[J].Guihaia,1994,14(4):357-360. |
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| Authors: | Hnang Yunping and Yin Zutang |
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| Abstract: | The present paper deals with the karyotype analysis of 4 species of Saussurea from North China. The chromosome numbers of 4 species and their karyotypes are reported for the first time. They are diploid, with 2n=26. The karyotype formulae are as follows: S. paleata, 2n=2x=26=18m+6sm+2st, karyotype belongs to stebbings 2B type; S. mongolica, 2n=2x=26=14m+4sm+8st,karyotype belongs to 2B type; S. dielsiana 2n=2x=26=8m+12sm+6st, karyotype belongs to 2C type; S. nivea, 2n=2x=26=18m+6sin+2st, karyotype belollgs to 2A type. No satellites have been found in these 4 species. |
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| Keywords: | Sassurea karyotypes |
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