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Chromosomal Evolution in Lower Vertebrates: Sex Chromosomes in Neotropical Fishes
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SYSNO ASEP 0483874 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Chromosomal Evolution in Lower Vertebrates: Sex Chromosomes in Neotropical Fishes Author(s) Cioffi, M. de B. (BR)
Yano, C. F. (BR)
Sember, Alexandr (UZFG-Y) RID, ORCID
Bertollo, L.A.C. (BR)Article number 258 Source Title Genes. - : MDPI
Roč. 8, č. 10 (2017)Number of pages 14 s. Publication form Online - E Language eng - English Country CH - Switzerland Keywords alternative evolutionary models ; simple and multiple sex chromosomes ; independent and common origins Subject RIV EB - Genetics ; Molecular Biology OECD category Genetics and heredity (medical genetics to be 3) R&D Projects EF15_003/0000460 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UZFG-Y - RVO:67985904 UT WOS 000414862300023 EID SCOPUS 85031278277 DOI 10.3390/genes8100258 Annotation Fishes exhibit the greatest diversity of species among vertebrates, offering a number of relevant models for genetic and evolutionary studies. The investigation of sex chromosome differentiation is a very active and striking research area of fish cytogenetics, as fishes represent one of the most vital model groups. Neotropical fish species show an amazing variety of sex chromosome systems, where different stages of differentiation can be found, ranging from homomorphic to highly differentiated sex chromosomes. Here, we draw attention on the impact of recent developments in molecular cytogenetic analyses that helped to elucidate many unknown questions about fish sex chromosome evolution, using excellent characiform models occurring in the Neotropical region, namely the Erythrinidae family and the Triportheus genus. While in Erythrinidae distinct XY and/or multiple XY-derived sex chromosome systems have independently evolved at least four different times, representatives of Triportheus show an opposite scenario, i.e., highly conserved ZZ/ZW system with a monophyletic origin. In both cases, recent molecular approaches, such as mapping of repetitive DNA classes, comparative genomic hybridization (CGH), and whole chromosome painting (WCP), allowed us to unmask several new features linked to the molecular composition and differentiation processes of sex chromosomes in fishes. Workplace Institute of Animal Physiology and Genetics Contact Jana Zásmětová, knihovna@iapg.cas.cz, Tel.: 315 639 554 Year of Publishing 2018
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