Evolution of biological complexity

被引:301
作者
Adami, C [1 ]
Ofria, C
Collier, TC
机构
[1] CALTECH, Kellogg Radiat Lab 10638, Pasadena, CA 91125 USA
[2] CALTECH, Beckman Inst 13974, Pasadena, CA 91125 USA
[3] Univ Calif Los Angeles, Div Organism Biol Ecol & Evolut, Los Angeles, CA 90095 USA
关键词
D O I
10.1073/pnas.97.9.4463
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
To make a case for or against a trend in the evolution of complexity in biological evolution, complexity needs to be both rigorously defined and measurable. A recent information-theoretic (but intuitively evident) definition identifies genomic complexity with the amount of information a sequence stores about its environment. We investigate the evolution of genomic complexity in populations of digital organisms and monitor in detail the evolutionary transitions that increase complexity. We show that, because natural selection forces genomes to behave as a natural "Maxwell Demon," within a fixed environment, genomic complexity is forced to increase.
引用
收藏
页码:4463 / 4468
页数:6
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