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Plant Diversity ›› 1985, Vol. 7 ›› Issue (04): 1-3.

• 研究论文 •    

植物分类学中的繁殖生物学问题

徐炳声   

  1. 复旦大学生物系
  • 出版日期:1985-08-25 发布日期:1985-08-25

PROBLEMS WITH REGARD TO REPR0DUCTIVE BIOLOGY IN PLANT TAXONOMY

Hsu Pingsheng   

  1. Department of Biology, Yunnan University
  • Online:1985-08-25 Published:1985-08-25

摘要: 繁殖生物学的知识有助于对分类学上复杂性问题的理解,从而大大地有利于我们作出明智的分类估价,但它不一定为我们提供解决问题的钥匙。异体受精增加群体的杂合性和变异性。互交繁育的程度限定了表型变异的式样,互交繁育受阻往往造成分类群表型上的间断。异形不亲和性系统(如花柱异长、雌雄异株等等)给分类学家提供可鉴别的形态差异来划分密切近缘的分类群,但也有由此而造成分类实践上混乱的情况。

关键词: 繁育系统, 异体受精, 不亲和性系统, 自体受精, 无融合生殖。

Abstract: Plant taxonomists traditionally place a heayy reliance on floral charactess in assessing relationships and in arriving at taxonomic conclusions. From the standpoint of reproductive biology, differences in number, shape and position of floral parts, in perianth-color patterns, and in various phenological traits, are all features that represent adaptations to various modes of pollination. Such an awareness can immeasurably aid the plant taxonomists in making intelli-gent taxonomic assessments.

Key words: Breeding system