| 中国和邻近地区杉科特有植物的核型及其进化水平的初步研究 |
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| 引用本文： | 李林初. 中国和邻近地区杉科特有植物的核型及其进化水平的初步研究[J]. 云南植物研究, 1987, 0(3) |
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| 作者姓名： | 李林初 |
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| 作者单位： | 复旦大学生物系 上海 |
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| 摘 要： | 中国和邻近地区杉科特有植物的核型类型,柳杉属、水松属、水杉属均为“1A”,杉木属、台湾杉属分别为“1B”和“2B”,它们的进化水平似依序递增并组成A-柳杉属——水松属——台湾杉属和L-水杉属——杉木属二条演化路线。该结果得到某些形态学性状和古植物学的支持,基本上适用于整个杉科。
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| 关 键 词： | 中国 杉科 核型 进化 |
A PRELIMINARY STUDY ON THE KARYOTYPES AND THEIR EVOLUTIONARY LEVELS OF TAXODIACEAE'S ENDEMIC PLANTS TO CHINA AND NEIGHBOURING AREA |
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| Li Linchu. A PRELIMINARY STUDY ON THE KARYOTYPES AND THEIR EVOLUTIONARY LEVELS OF TAXODIACEAE'S ENDEMIC PLANTS TO CHINA AND NEIGHBOURING AREA[J]. Acta Botanica Yunnanica, 1987, 0(3) |
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| Authors: | Li Linchu |
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| Abstract: | The karyotypic types of Taxodiaceae's endemic plants to China and neighbouring area are.Cryptomeria,"1A"; Clyptostrobus, "lA"; M etasequoia, "lA", Cunninghamia, "lB"; Taiwania, "2B". According to the Stebbins'[25] karyotypic evolutionary theory and karyotypic analyses of the five genera, the present author suggests that their sequence of evolutionary level from primitive to progress would be Cryptomeria, Glyptostrobus, M etasequoia,Cunninghamia,Taiwania and there be two evolutionary lines probably. A-CYyptomeria-Glyptostrobus-Taiwania and L-Metasequoia-Cunninghamia. Theconclusions arc supported by some evidances accumulated during the past in the fields of morphology, embryology, palaeobotany and so on and shown in Fig. 1, |
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| Keywords: | China Taxodiaceae Karyotype Evolution |
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