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作 者 ：顾志建 夏丽芳 谢立山 近藤胜彦

期 刊 ：云南植物研究 1988年 10卷 03期 页码：1-3

关键词：山茶属；染色体数目；倍性；

Keywords:Camellia,

摘 要 ：本文报道36个种或变种的染色体数目，按张宏达的分类系统涉及到了4个亚属、11个组，其中2个种进行了不同居群的观察。结果表明（详见表1），山茶属植物的染色体基数都是 X=15。在自然界，染色体倍性变异从2倍体到8倍体均有，但多数种为2倍体。我们观察的这36个种或变种中，2倍体种有22个，4倍体种3个，6倍体种10个，8倍体种1个。这一系列的多倍性变异，主要表现在种间。此外，同种不同居群间也有不同倍性的变异。例如C·forrestii在不同居群间有2倍体、4倍体和6倍体。而且各个不同倍性的植株表型特征没有明显的变异，估计是同源多倍体或称种内多倍体。

Abstract:The genus of Camellia consists of over 200 species, its distributing centre is in the south and southwest part of China. Morinaga firstly did the cytological studies of Camellia in 1929, who examined the chromosome number of C. sinensis and C. japonica and confirmed the basic number n = x = 15；then, C. sinensis var. macro phylla 2n=45, 2n = 60, to be polyploid were reported by Karasawa Simura in 1935；from 50th to 60th decade the research on chromosome number of Camellia had developed and 14 species were reported. Since 1970, a series works on cytological studies of Camellia either the wild species or the cultivated variaties had been done by K. Kondo.

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