NUCLEAR DNA CONTENT VARIATION IN FISHES
NUCLEAR DNA CONTENT VARIATION IN FISHES
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DOI：
10.1508/cytologia.56.425
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发表时间：
1991-01-01
期刊：
影响因子：
--
通讯作者：
YU Q
中科院分区：
文献类型：
--
作者：
CUI J;REN X;YU Q
对42种中国淡水鱼的细胞DNA含量进行了检测。结果表明，鱼类核染色体数目或倍体与DNA含量密切相关。这些观察结果表明，越专业化或进化越先进的物种，鱼类拥有的核DNA含量越少。讨论了多倍体的进化、鱼类的系统关系和种内变异。
Forty-two species of Chinese freshwater fishes were examined for their cellular DNA content. The result showed that there is a close correlation between nuclear chromosome number or ploids and DNA content in fish. These observations suggest that the more specialized or evolutionarily advanced the species, the less nuclear DNA content the fishes possess. The polyploid evolution, the systematic relationship of the fishes and the variations within species are discussed.