Theory of Asynchronous Evolution

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Theories Summary:

The Evolutionary Theory of Sex

Dioecism involves two fundamental phenomena: mating and sex differentiation. Classical genetics considers only the results of mating; therefore the phenomena related to the differentiation itself cannot be explained.

According to the new theory, division into two sexes is an advantageous form of informational contact with the environment, a specialization by two main aspects of evolution — conservation and change. Female sex is the conservative stable element. It transmits existing pattern of population genotypes to the next generation.

 

Male sex is the flexible element, susceptible to the environment. Under changing environmental conditions males undergo greater elimination. The results of the selection are transmitted along the males’ line for many generations. Therefore any trait evolves earlier in males than in females. This delay in time results in two forms of a trait—male and female (sexual dimorphism). The direction of evolution is from female to male norm of a trait. After many generations useful features are passed to females allowing them to avoid the axe of natural selection.  More…

The Role of Sex Chromosomes in Evolution

Division into two sexes allows testing of evolutionary innovations in the male genome before they are transmitted to the female genome. Such testing becomes possible when the evolution of the male sex precedes the evolution of the female sex. This implies the existence of “male” genes, which are already present in the male genome, but are not yet in the female genome. Accordingly, “female” genes should also exist. They still remain in females, but have already been lost by the male genome.

The new concept implies the dynamic behavior of genes in the genome, according to which the Y-chromosome represents a “gateway” for new information coming to the genome; i.e., place of “birth” and testing of new genes. Y-chromosome is responsible for initiation, acceleration, and regulation of sexual dimorphism.

The X-chromosome is the “transport” chromosome that transfers new genes from the Y-chromosome into autosomes. It serves as a stabilizer, relaxer, and liquidator of sexual dimorphism. It also serves as a repository of the outgoing genes that await elimination. The concept provides new interpretation of the appearance, localization, and movement of genes along chromosomes and between them. It explains the phenomena of chromosomal inactivation, mobile genes, association of Y-chromosome with stress, retroviruses, etc.   More…

Evolutionary Theories of Asymmetrization of Organisms, Brain and Body

The lateral asymmetry as well as sex differentiation is considered as a consequence of asynchronous evolution. The operative subsystems, i.e. the male and the left hemisphere of the brain evolve earlier than the conservative ones, i.e. the female and the right hemisphere. New functions appear at first in males and after many generations they are transferred to females. The leading centers of their control are at first originated in the left hemisphere, then they are translocated to the right one. The criterion for functions localization in the hemisphere is their evolutionary age: new functions are controlled by the left hemisphere, old functions by the right one. Therefore the right hemisphere is biological, while the left one is socio-cultural and ethnic. The theory explains from a single standpoint the phenomena of handedness, nervous crossover, as well as many known facts, and predicts the new ones. More…

 

The Principle of Asynchronous Evolution

 

The conservation and variation are the main features of the system evolution. For unitary systems (asexual, symmetric) they are alternative. The more the one—the less should be the other. The division of the system into two related subsystems specialized on conservative and operative aspects of evolution allows improving both of them at the same time. This solution contributes to the general stability of the system. The evolution occurs asynchronously in such a way that the operative subsystem changes first and the conservative one follows later. Useful traits are verified and selected in the operative subsystem and only after some time gets transferred into conservative one.    More…     

 

 

 

Copyright 2005-2009 S. Geodakyan. All rights reserved.

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