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Genes 2017, 8(11), 302; doi:10.3390/genes8110302

Impact of Repetitive Elements on the Y Chromosome Formation in Plants

1
Department of Plant Developmental Genetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, Kralovopolska 135, 61200 Brno, Czech Republic
2
Centre of the Region Hana for Biotechnological and Agricultural Research, Institute of Experimental Botany, 78371 Olomouc, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editor: Thomas Liehr
Received: 21 August 2017 / Revised: 19 October 2017 / Accepted: 26 October 2017 / Published: 1 November 2017
(This article belongs to the Special Issue Chromosomal Evolution)
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Abstract

In contrast to animals, separate sexes and sex chromosomes in plants are very rare. Although the evolution of sex chromosomes has been the subject of numerous studies, the impact of repetitive sequences on sex chromosome architecture is not fully understood. New genomic approaches shed light on the role of satellites and transposable elements in the process of Y chromosome evolution. We discuss the impact of repetitive sequences on the structure and dynamics of sex chromosomes with specific focus on Rumex acetosa and Silene latifolia. Recent papers showed that both the expansion and shrinkage of the Y chromosome is influenced by sex-specific regulation of repetitive DNA spread. We present a view that the dynamics of Y chromosome formation is an interplay of genetic and epigenetic processes. View Full-Text
Keywords: sex chromosomes; transposable elements; satellites; Y chromosome sex chromosomes; transposable elements; satellites; Y chromosome
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Hobza, R.; Cegan, R.; Jesionek, W.; Kejnovsky, E.; Vyskot, B.; Kubat, Z. Impact of Repetitive Elements on the Y Chromosome Formation in Plants. Genes 2017, 8, 302.

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