Sympatric speciation: compliance with phenotype diversification from a single genotype
Sympatric speciation: compliance with phenotype diversification from a single genotype
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DOI：
10.1098/rspb.2000.1293
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发表时间：
2000-12-07
影响因子：
4.7
通讯作者：
Yomo, T
中科院分区：
文献类型：
--
作者：
Kaneko, K;Yomo, T
提出了一种新的机制，考虑到复杂的生物过程中的每一个单独的有机体同域物种形成。根据动力系统理论，具有相同基因型的生物可以具有不同的生理状态，并且可以通过适当的相互作用而“共生”共存。随着突变，表型分化的生物体逐渐拥有不同的基因型，同时保持它们的共生关系。这种共生的物种形成对有性重组是稳健的，因为具有中间基因型的混合亲本的后代比他们的亲本更不适合。这导致杂交体的不育。因此，交配偏好的基础也就产生了。
A novel mechanism for sympatric speciation that takes into account complex bioprocesses 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.