ENDOPOLYPLOIDY - TOWARDS AN UNDERSTANDING OF ITS BIOLOGICAL SIGNIFICANCE
ENDOPOLYPLOIDY - TOWARDS AN UNDERSTANDING OF ITS BIOLOGICAL SIGNIFICANCE
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DOI：
10.1007/bf00048400
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发表时间：
1978-01-01
影响因子：
1.3
通讯作者：
BARLOW, PW
中科院分区：
文献类型：
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作者：
BARLOW, PW
关于内多倍体的意义的混淆是由于观察这种现象的狭窄参考框架造成的；也就是说，内多倍体的特殊功能方面，当它在一个物种中运作时，在目前的时间，超过了它在该物种进化中的作用，过去或未来的考虑。一个物种可以表现出的内多倍体的程度与其基本DNA含量或核结构之间似乎没有任何明显的关系。内多倍体的重要性可能并不在于这种条件所能支持的任何特殊功能，而在于其产生的特性，这些特性与二倍体细胞的特性不同。讨论了内多倍体状态的性质及其在植物和动物中的表现。这些特性可能具有潜力，为新的发展道路开辟可能性，并作为自然选择可以运作的因素。
The confusion concerning the significance of endopolyploidy results from the narrow frame of reference from which the phenomenon is viewed; i.e., the specialized functional aspect of endopolyploidy as it operates in a species at the present time overrides consideration of its role in the evolution of that species, past or future. There does not seem to be any obvious relationship between the degree of endopolyploidy that a species can exhibit, and its basic DNA content or nuclear structure. The significance of endopolyploidy may reside not so much in any specialized function that the condition can support, but in the properties that result, and which are distinct from those that apply to diploid cells. Properties of the endopolyploid state and examples of their manifestation in plants and animals are discussed. These properties may have a potential which opens possibilities for new paths of development and serves as a factor upon which natural selection can operate.