| 三种东亚冷杉植物的核型研究 |
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| 引用本文： | 李林初 徐阿生. 三种东亚冷杉植物的核型研究[J]. 云南植物研究, 1997, 19(3): 289-291 |
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| 作者姓名： | 李林初 徐阿生 |
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| 作者单位： | [1]复旦大学生命科学学院 [2]西藏高原生态研究所 |
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| 基金项目： | 高等学校博士学科点专项科研基金,国家自然科学基金 |
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| 摘 要： | 首次报道了急尖长苞冷杉ＡｂｉｅｓｇｅｏｒｇｅｉＯｒｒｖａｒ．ｓｍｉｔｈｉｉ（ＶｉｇｕｉｅｅｔＧａｕｓｓｅｎ）Ｃｈｅｎｇｅｔ．Ｌ．Ｋ．Ｆｕ，臭冷杉Ａ．ｎｅｐｈｒｏｌｅｐｉｓ（Ｔｒａｕｒｖ．）Ｍａｘｉｍ和杉松，Ａ．ｈｏｌｏｐｈｙｌｌａｍａｘｉｍ等３种东亚冷杉植物的核型，它们的核型公式分别是Ｋ（２ｎ）＝２４＝１８ｍ（２ＳＣ）＋６ｓｍ，１８ｍ（６ＳＣ）＋６ｓｍ和１４ｍ（６ＳＣ）＋１０ｓｍ，染色体相对长度组
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| 关 键 词： | 冷杉属 急尖长苞冷杉 臭冷杉 杉松 染色体组型 |
A KARYOTYPIC STUDY ON THREE SPECIES IN ABIES (PINACEAE) FROM EAST ASIA |
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| Li Linchu ,Xu Asheng ,Wang Gang. A KARYOTYPIC STUDY ON THREE SPECIES IN ABIES (PINACEAE) FROM EAST ASIA[J]. Acta Botanica Yunnanica, 1997, 19(3): 289-291 |
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| Authors: | Li Linchu Xu Asheng Wang Gang |
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| Affiliation: | Li Linchu 1,Xu Asheng 2,Wang Gang 1 |
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| Abstract: | The present paper deals with the karyotype analysis of three species in the Abies (Pinaceae) from East Asia including A. georgei Orr var. smithii (Viguie et Gaussen) Cheng et L. K. Fu, A. nephrolepis (Trautv.) Maxim. and A. holophylla Maxim. The karyotype fmulas of the species are K(2n)=24=18m(2SC) 6sm, 18m(6SC) 6sm and 14m(6SC) 10sm respectively. Their chromosome complements are 2n=24=4L 8M2 10M1 2S, 4L 8M2 8M1 4S and 2L 12M2 8M1 2S according to the standard defined by Kuo et al (1972) based on relative length. They belong to 2A type of Stebbins' karyotypic asymmetry. The karyotypes of the species are reported for the first time. The karyotype of A. nephrolepis is more symmetry and more primitive than that of A. georgei var. smithii and A. holophylla. |
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| Keywords: | Karyotype Abies A. georgei var. smithii A. nephrolepis A. holophylla |
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