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作 者 ：尚宗燕;张继祖;李汝娟;刘谦虎

期 刊 ：武汉植物学研究 1990年 8卷 1期 页码：13-17

关键词：盐肤木属；染色体；B染色体；

Keywords:Rhus L., Chromosome number, B-chromosome,

摘 要 ：盐肤木(Rhus)属(广义)是漆树科中最多态最大的属,全世界分布有300余种,我国有20余种.本文报道了4种盐肤木属(Rhus)植物的染色体观察结果:1.盐肤木R.chinensis 2ⁿ=30,有0-5个B染色体存在;2.青麸杨R.potaninii 2ⁿ=30,本文为首次报道;3.火矩树R.typhiflua 2ⁿ=30;4.R.verniciflua 2ⁿ=30,但其中一个栽培品种为三倍体(2ⁿ=3x=45).盐肤木、青麸杨为我国重要的倍子树,漆树是我国特种经济林木,火矩树为速生绿化风景树种,本文为进一步发掘利用及深入研究这些植物提供了细胞学依据.B染色体在木本植物中极少出现,在盐肤木中发现B染色体,对深入研究B染色体的起源、分布等有一定的意义.同时本文为Rhus属的分类问题提供了一些细胞学信息.

Abstract:The chromosome numbers of 4 species of Genus Rhus from Shaanxi Province are reported as follows: 1, R.chinensis 2ⁿ=30+(0-5)B; 2. R.potaninii 2ⁿ=30, it is reported for the first time; 3. R.typhiflua 2ⁿ=30; 4. R.verniciflua 2ⁿ=30, hut one of 65 cultivars is a triploid 2ⁿ=3x=45.R.chinensis and R.potainii are the host plants of gall makers which produce important Chinese medicine called Chinese gall, R.verniciflua is a kind of particular economic tree in China, and R.typhiflua is a kind of quickgrowing garden plant. The results provide the cytological bases for further using and studying these plants.Until 1977 only in 6 species of woody plants were B-chromosomes discovered. In this paper 0—5 B-chromosomes are found in R.chinensis for the first time. This discovery wiill promote the further studying about the origin and distribution of B-chromosome.This paper also provides some cytological information for the classification of Genus Rhus.

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