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Genes 2017, 8(11), 297; doi:10.3390/genes8110297

A Narrowing of the Phenotypic Diversity Range after Large Rearrangements of the Karyotype in Salmonidae: The Relationship between Saltational Genome Rearrangements and Gradual Adaptive Evolution

1
A.N. Severtsov Institute of Ecology and Evolution of Russian Academy of Sciences, Moscow 119071, Russia
2
Institute of Biophysics of Siberian Branch of Federal Research Center “Krasnoyarsk Science Center” of Russian Academy of Sciences, Akademgorodok, 50/50, Krasnoyarsk 660036, Russia
Received: 24 August 2017 / Revised: 18 October 2017 / Accepted: 24 October 2017 / Published: 27 October 2017
(This article belongs to the Special Issue Chromosomal Evolution)
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Abstract

The problem of how a gradual development of ecological and morphological adaptations combines with large genome rearrangements, which have been found to occur in the phylogeny of many groups of organisms, is a matter of discussion in the literature. The objective of this work was to study the problem with the example of salmonids, whose evolution included at least six events of multiple chromosome fusions. Large karyotype rearrangements are associated with a decrease in ecological and morphological diversity in salmonids. In the above example, genome rearrangements seem to distort the function of the genetic systems that are responsible for the occurrence of certain ecological forms in salmonids. View Full-Text
Keywords: evolution; karyotype; genome; morphology; ecology evolution; karyotype; genome; morphology; ecology
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Makhrov, A.A. A Narrowing of the Phenotypic Diversity Range after Large Rearrangements of the Karyotype in Salmonidae: The Relationship between Saltational Genome Rearrangements and Gradual Adaptive Evolution. Genes 2017, 8, 297.

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