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水晶兰属植物的染色体*

 黄向旭1,  易绮斐1,  邢福武1,  刘东明1,  顾志建2**   

  1. 1 中国科学院华南植物园, 广东广州 510650; 2 中国科学院昆明植物研究所, 云南昆明 650204
  • 出版日期:2006-04-25 发布日期:2014-01-17

Chromosome Study of Monotropa (Monotropaceae)

 HUANG  Xiang-Xu-1,   Yi-Qi-Fei-1,   Xing-Fu-Wu-1,   Liu-Dong-Ming-1,   Gu-Zhi-Jian-2**   

  1. 1 South China Botani cal Garden , Chinese Academy of Sciences, Guangzhou 510650, China;
    2 Kunming Institute of Botany , Chinese Academy of Sci ences , Kunming 650204, China
  • Online:2006-04-25 Published:2014-01-17

摘要:

对国产水晶兰属植物水晶兰( Monotrop a uniflroa L. ) 和毛花松下兰( M1 hypopitys var1 hirsutea Roth)
的花粉母细胞减数分裂进行了观察, 它们的减数分裂中期I 的染色体数目均为n= 24。结合前人所做的研
究, 确定该属的染色体基数为x= 8, 并对该属的染色体基数和倍性变异与地理分布区的关系进行了初步
探讨。通过对鹿蹄草亚科和水晶兰亚科的染色体基数比较, 结合两个亚科的生长习性和花药开裂方式的不
同, 作者赞同哈钦松系统将水晶兰亚科作为科的处理。

关键词: 水晶兰属, 染色体数目, 水晶兰科, 鹿蹄草科

Abstract:

The chromosome numbers of meiotic metaphase I of pollen mother cell of Monotr opa uniflr oa L. and M1 hyp opitys
var1 hirsutea Roth are reported. It is shown that the chromosome numbers in both plants are n= 24. In accordance with
previous cytologyical data and our observation, basic chromosome number in Monotropa is x= 8. The variations of ploidy and geographical
distribution of taxa of Monotropaceae and Pyrolaceae are discussed. Basic chromosome mumbers in subfamilies Monotropadieae
and Pyroloideae were compared. In view of the differences in growth habit and anther splitting in the two subfamilies, the
authors agree with Hutchinson, i1 e. subfamily Monotropaodieae should be treated as a separate family, Monotropaceae.

Key words: Monotropa, Chromosome numbers, Monotropaceae, Pyrolaceae

中图分类号: 

  • Q 943