Is the Buffer Mechanism Universal in Biological Evolution?
Is the Buffer Mechanism Universal in Biological Evolution?
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DOI：
10.1080/02604027.2011.555255
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发表时间：
2011-03
期刊：
影响因子：
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通讯作者：
K. Shu;Hou H. Huang;Pei G. Luo
中科院分区：
文献类型：
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作者：
K. Shu;Hou H. Huang;Pei G. Luo
新的生物学特征的出现是进化过程的里程碑。但是，它们何时、如何以及为什么会出现？我们提出了一种通用机制，即进化缓冲机制来理解这些问题。我们推测，所有生物体都具有这种潜在的缓冲能力。这种能力会被自然或人为的压力所触发，以表达内在的潜在变体。随着进化进程的进行，生物体的潜在缓冲能力会增加，以便进行进一步的选择。生物体的进化水平越高，潜在的缓冲能力就越大，重要的是，缓冲能力与选择压力之间的关系也就越大。然而，当压力远远超过目标的潜在能力时，自然或人为的压力就会危及遗传缓冲系统，如果新性状的出现失败，可能导致物种灭绝。
The emergence of new biological traits is landmarks of evolutionary progress. However, when, how, and why do they appear? We propose a universal mechanism, a Buffering Mechanism of Evolution to understand these questions. We speculate that all organisms possess this potential buffer capacity. This capacity would be triggered by the pressures, natural or artificial, to express the intrinsic potential variants. The potential buffer capacity of the organism increases for further selections as evolutionary progress occurs. The higher the evolutionary level of the organism, the greater the potential buffer capacity, and importantly, the buffer capacity versus the pressures of selections will result. However, when the pressures are far more than the potential capacity of the targets, the natural or artificial pressures then compromise the genetic buffering system resulting in possible species extinction if the emergence of new traits fails.