Počet záznamů: 1
Premeiotic endoreplication is essential for obligate parthenogenesis in geckos
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SYSNO ASEP 0557272 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Premeiotic endoreplication is essential for obligate parthenogenesis in geckos Tvůrce(i) Didukh, Dmitrij (UZFG-Y) ORCID
Altmanová, Marie (UZFG-Y) ORCID
Klíma, Jiří (UZFG-Y) RID, ORCID
Kratochvíl, L. (CZ)Celkový počet autorů 4 Číslo článku dev200345 Zdroj.dok. Development. - : Company of Biologists - ISSN 0950-1991
Roč. 149, č. 7 (2022)Poč.str. 13 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova asexuality ; endoreplication ; meiosis Vědní obor RIV EB - Genetika a molekulární biologie Obor OECD Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology CEP GA21-25185S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UZFG-Y - RVO:67985904 UT WOS 000787626100017 EID SCOPUS 85134752506 DOI 10.1242/dev.200345 Anotace Obligate parthenogenesis evolved in reptiles convergently several times, mainly through interspecific hybridization. The obligate parthenogenetic complexes typically include both diploid and triploid lineages. Offspring of parthenogenetic hybrids are genetic copies of their mother, however, the cellular mechanism enabling the production of unreduced cells is largely unknown. Here, we show that oocytes go through meiosis in three widespread, or even strongly invasive, obligate parthenogenetic complexes of geckos, namely in diploid and triploid Lepidodactylus lugubris, and triploid Hemiphyllodactylus typus and Heteronotia binoei. In all four lineages, the majority of oocytes enter the pachytene at the original ploidy level, but their chromosomes cannot pair properly and instead form univalents, bivalents and multivalents. Unreduced eggs with clonally inherited genomes are formed from germ cells that had undergone premeiotic endoreplication, in which appropriate segregation is ensured by the formation of bivalents made from copies of identical chromosomes. We conclude that the induction of premeiotic endoreplication in reptiles was independently co-opted at least four times as an essential component of parthenogenetic reproduction and that this mechanism enables the emergence of fertile polyploid lineages within parthenogenetic complexes. Pracoviště Ústav živočišné fyziologie a genetiky Kontakt Jana Zásmětová, knihovna@iapg.cas.cz, Tel.: 315 639 554 Rok sběru 2023 Elektronická adresa https://journals.biologists.com/dev/article-abstract/149/7/dev200345/275038/Premeiotic-endoreplication-is-essential-for?redirectedFrom=fulltext
Počet záznamů: 1