2000/09/18 by Kunihiko Kaneko, Kaneko, Kunihiko, Tetsuya Yomo +1
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · Social Sciences · #Condensed Matter (cond-mat) #Evolution and Genetic Dynamics #Evolutionary Game Theory and Cooperation #FOS: Biological sciences #FOS: Physical sciences #Plant and animal studies #Populations and Evolution (q-bio.PE) #Quantum Physics (quant-ph) #cond-mat #q-bio.PE #quant-ph
paper · pdf · doi:10.48550/arxiv.cond-mat/0009252
14 pages + 3 figures(1 Color), gziped Postscript file, Proc. Roy. Soc. B (in press)
arxiv created 2000/09/18 · openalex publication_date 2000/09/18 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A novel mechanism for sympatric speciation that takes into account complex bio-processes within each individual organism is proposed. According to dynamical systems theory, organisms with identical genotypes can possess differentiated physiological states and may coexist `symbiotically' through appropriate mutual interaction. With mutations, the phenotypically differentiated organisms gradually come to possess distinct genotypes, while maintaining their symbiotic relationship. This symbiotic speciation is robust against sexual recombination, because offspring of mixed parentage, with intermediate genotypes, are less fit than their parents. This leads to sterility of the hybrid. Accordingly, a basis for mating preference also arises.