Impact of repetitive DNA on sex chromosome evolution in plants

0506513 - BFÚ 2020 RIV NL eng J - Článek v odborném periodiku
Hobza, Roman - Kubát, Zdeněk - Čegan, Radim - Jesionek, Wojciech - Vyskot, Boris - Kejnovský, Eduard
Impact of repetitive DNA on sex chromosome evolution in plants.
Chromosome Research. Roč. 23, č. 3 (2015), s. 561-570. ISSN 0967-3849. E-ISSN 1573-6849
Grant CEP: GA ČR GBP501/12/G090; GA ČR GAP501/12/2220; GA ČR GJ15-21523Y; GA ČR GA15-02891S
Institucionální podpora: RVO:68081707 ; RVO:61389030
Klíčová slova: primitive y-chromosome * transposable elements * dioecious plant * silene-latifolia * retrotransposon
Obor OECD: Biochemistry and molecular biology; Biochemistry and molecular biology (UEB-Q)
Impakt faktor: 2.590, rok: 2015
Způsob publikování: Omezený přístup
https://link.springer.com/article/10.1007%2Fs10577-015-9496-2

Structurally and functionally diverged sex chromosomes have evolved in many animals as well as in some plants. Sex chromosomes represent a specific genomic region(s) with locally suppressed recombination. As a consequence, repetitive sequences involving transposable elements, tandem repeats (satellites and microsatellites), and organellar DNA accumulate on the Y (W) chromosomes. In this paper, we review the main types of repetitive elements, their gathering on the Y chromosome, and discuss new findings showing that not only accumulation of various repeats in non-recombining regions but also opposite processes form Y chromosome. The aim of this review is also to discuss the mechanisms of repetitive DNA spread involving (retro) transposition, DNA polymerase slippage or unequal crossing-over, as well as modes of repeat removal by ectopic recombination. The intensity of these processes differs in non-recombining region(s) of sex chromosomes when compared to the recombining parts of genome. We also speculate about the relationship between heterochromatinization and the formation of heteromorphic sex chromosomes.
Trvalý link: http://hdl.handle.net/11104/0297745