Premeiotic endoreplication is essential for obligate parthenogenesis in geckos
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F22%3A00557272" target="_blank" >RIV/67985904:_____/22:00557272 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/22:10451481
Result on the web
<a href="https://journals.biologists.com/dev/article-abstract/149/7/dev200345/275038/Premeiotic-endoreplication-is-essential-for?redirectedFrom=fulltext" target="_blank" >https://journals.biologists.com/dev/article-abstract/149/7/dev200345/275038/Premeiotic-endoreplication-is-essential-for?redirectedFrom=fulltext</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1242/dev.200345" target="_blank" >10.1242/dev.200345</a>
Alternative languages
Result language
angličtina
Original language name
Premeiotic endoreplication is essential for obligate parthenogenesis in geckos
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Development
ISSN
0950-1991
e-ISSN
1477-9129
Volume of the periodical
149
Issue of the periodical within the volume
7
Country of publishing house
GB - UNITED KINGDOM
Number of pages
13
Pages from-to
dev200345
UT code for WoS article
000787626100017
EID of the result in the Scopus database
2-s2.0-85134752506