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The Regressive Trend of Complex Phenotypic Structures in Neutral Evolution

The Regressive Trend of Complex Phenotypic Structures in Neutral Evolution

Evolutionary changes of characters formed in ontogeny by developmental induction are modeled for an infinite population and for replicate finite populations under a mutation — drift equilibrium. Induction occurs by interaction of reactants, which must therefore coincide in time intervals of their ab...

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Main Author: Dzeverin, I.I.
Format: Article
Language:English
Published: Інститут зоології ім. І.І. Шмальгаузена НАН України 2007
Series:Вестник зоологии
Subjects:
Эволюция и филогения
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/64939
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spelling irk-123456789-649392014-06-22T03:02:20Z The Regressive Trend of Complex Phenotypic Structures in Neutral Evolution Dzeverin, I.I. Эволюция и филогения Evolutionary changes of characters formed in ontogeny by developmental induction are modeled for an infinite population and for replicate finite populations under a mutation — drift equilibrium. Induction occurs by interaction of reactants, which must therefore coincide in time intervals of their abilities to react. This mechanism is being damaged in evolution of useless structures by random mutations in genes that control simultaneous formations of reactants, whereas mutational effects on important structures are restrained by selection. The breakdown of induction mechanisms produces increased variability and degeneration in vestigial characters. Quantitative estimations are illustrated by data regarding regressive trends in some groups of mammals. Time spans sufficient for complete loss of vestigial organs obtained from the modelings are much smaller than the periods of macroevolutionary changes. Certain functional value and the genetic correlation with important structures are the most probable mechanisms that could prevent the rapid loss of vestigial structures. Математические модели эволюционных изменений признаков, формирующихся в онтогенезе путем индукции, разработаны для бесконечной популяции, а также для группы конечных популяций, находящихся в состоянии равновесия между мутационным процессом и генетическим дрейфом и имеющих одинаковые исходные свойства. 2007 Article The Regressive Trend of Complex Phenotypic Structures in Neutral Evolution / I.I. Dzeverin // Вестник зоологии. — 2007. — Т. 41, № 1. — С. 53–69. — Бібліогр.: 64 назв. — англ. 0084-5604 http://dspace.nbuv.gov.ua/handle/123456789/64939 575.8:591.4.068:591.15:599 en Вестник зоологии Інститут зоології ім. І.І. Шмальгаузена НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
topic Эволюция и филогения
Эволюция и филогения
spellingShingle Эволюция и филогения
Эволюция и филогения
Dzeverin, I.I.
The Regressive Trend of Complex Phenotypic Structures in Neutral Evolution
Вестник зоологии
description Evolutionary changes of characters formed in ontogeny by developmental induction are modeled for an infinite population and for replicate finite populations under a mutation — drift equilibrium. Induction occurs by interaction of reactants, which must therefore coincide in time intervals of their abilities to react. This mechanism is being damaged in evolution of useless structures by random mutations in genes that control simultaneous formations of reactants, whereas mutational effects on important structures are restrained by selection. The breakdown of induction mechanisms produces increased variability and degeneration in vestigial characters. Quantitative estimations are illustrated by data regarding regressive trends in some groups of mammals. Time spans sufficient for complete loss of vestigial organs obtained from the modelings are much smaller than the periods of macroevolutionary changes. Certain functional value and the genetic correlation with important structures are the most probable mechanisms that could prevent the rapid loss of vestigial structures.
format Article
author Dzeverin, I.I.
author_facet Dzeverin, I.I.
author_sort Dzeverin, I.I.
title The Regressive Trend of Complex Phenotypic Structures in Neutral Evolution
title_short The Regressive Trend of Complex Phenotypic Structures in Neutral Evolution
title_full The Regressive Trend of Complex Phenotypic Structures in Neutral Evolution
title_fullStr The Regressive Trend of Complex Phenotypic Structures in Neutral Evolution
title_full_unstemmed The Regressive Trend of Complex Phenotypic Structures in Neutral Evolution
title_sort regressive trend of complex phenotypic structures in neutral evolution
publisher Інститут зоології ім. І.І. Шмальгаузена НАН України
publishDate 2007
topic_facet Эволюция и филогения
url http://dspace.nbuv.gov.ua/handle/123456789/64939
citation_txt The Regressive Trend of Complex Phenotypic Structures in Neutral Evolution / I.I. Dzeverin // Вестник зоологии. — 2007. — Т. 41, № 1. — С. 53–69. — Бібліогр.: 64 назв. — англ.
series Вестник зоологии
work_keys_str_mv AT dzeverinii theregressivetrendofcomplexphenotypicstructuresinneutralevolution
AT dzeverinii regressivetrendofcomplexphenotypicstructuresinneutralevolution
first_indexed 2023-10-18T18:47:01Z
last_indexed 2023-10-18T18:47:01Z
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