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ZW, XY, and yet ZW: Sex chromosome evolution in snakes even more complicated
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SYSNO ASEP 0506460 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název ZW, XY, and yet ZW: Sex chromosome evolution in snakes even more complicated Tvůrce(i) Augstenová, B. (CZ)
Johnson Pokorná, Martina (UZFG-Y) ORCID
Altmanová, Marie (UZFG-Y) ORCID
Frynta, D. (CZ)
Rovatsos, M. (CZ)
Kratochvíl, L. (CZ)Zdroj.dok. Evolution. - : Wiley - ISSN 0014-3820
Roč. 72, č. 8 (2018), s. 1701-1707Poč.str. 7 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova heterochiasmy ; heteromorphic sex chromosomes ; reptiles Vědní obor RIV EG - Zoologie Obor OECD Zoology Způsob publikování Omezený přístup Institucionální podpora UZFG-Y - RVO:67985904 UT WOS 000441749600012 EID SCOPUS 85050640874 DOI 10.1111/evo.13543 Anotace Snakes are historically important in the formulation of several central concepts on the evolution of sex chromosomes. For over 50 years, it was believed that all snakes shared the same ZZ/ZW sex chromosomes, which are homomorphic and poorly differentiated in basal snakes such as pythons and boas, while heteromorphic and well differentiated in advanced (caenophidian) snakes. Recent molecular studies revealed that differentiated sex chromosomes are indeed shared among all families of caenophidian snakes, but that boas and pythons evolved likely independently male heterogamety (XX/XY sex chromosomes). The historical report of heteromorphic ZZ/ZW sex chromosomes in a bold snake was previously regarded as ambiguous. In the current study, we document heteromorphic ZZ/ZW sex chromosomes in a boid snake. A comparative approach suggests that these heteromorphic sex chromosomes evolved very recently and that they are poorly differentiated at the sequence level. Interestingly, two snake lineages with confirmed male heterogamety possess homomorphic sex chromosomes, but heteromorphic sex chromosomes are present in both snake lineages with female heterogamety. We point out that this phenomenon is more common across squamates. The presence of female heterogamety in non-caenophidian snakes indicates that the evolution of sex chromosomes in this lineage is much more complex than previously thought, making snakes an even better model system for the evolution of sex chromosomes. Pracoviště Ústav živočišné fyziologie a genetiky Kontakt Jana Zásmětová, knihovna@iapg.cas.cz, Tel.: 315 639 554 Rok sběru 2020 Elektronická adresa https://asep.lib.cas.cz/arl-cav/cs/csg/?repo=crepo1&key=13246662712
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