On the origin of neo-sex chromosomes in the Neotropical dragonflies Rhionaeschna bonariensis and R. planaltica (Aeshnidae, Odonata)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F22%3A00565543" target="_blank" >RIV/60077344:_____/22:00565543 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12310/22:43905327
Result on the web
<a href="https://www.mdpi.com/2075-4450/13/12/1159/pdf?version=1671152037" target="_blank" >https://www.mdpi.com/2075-4450/13/12/1159/pdf?version=1671152037</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/insects13121159" target="_blank" >10.3390/insects13121159</a>
Alternative languages
Result language
angličtina
Original language name
On the origin of neo-sex chromosomes in the Neotropical dragonflies Rhionaeschna bonariensis and R. planaltica (Aeshnidae, Odonata)
Original language description
Dragonflies and damselflies (Odonata) are very interesting insects from a cytogenetic point of view. Their chromosomes do not have a typical centromere and their meiosis process differs in some respects from the canonical meiosis process. Sex in Odonata is usually determined by two X chromosomes in females and only one X chromosome in males (a Y chromosome is not present). In this work, we studied sex chromosome evolution in two dragonfly species of the genus Rhionaeschna that have a derived sex chromosome system: neo-XX in females and neo-XY in males. This variation is the result of chromosome rearrangements. In R. planaltica, meiotic analysis and fluo- rescence in situ hybridization with a ribosomal DNA probe revealed that the original X chromosome was inserted into the smallest autosome, giving rise to the neo-X chromosome, while the homologous autosome became a neo-Y chromosome. In contrast, the neo-X chromosome in R. bonariensis evolved by a terminal fusion of the original X chromosome with the largest autosome, whose homolog be- came the neo-Y chromosome. Our results suggest an independent origin of neo-sex chromosomes in these dragonfly species and contribute to our understanding of the distinct mechanisms of sex chromosome evolution.
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
10603 - Genetics and heredity (medical genetics to be 3)
Result continuities
Project
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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
Insects
ISSN
2075-4450
e-ISSN
2075-4450
Volume of the periodical
13
Issue of the periodical within the volume
12
Country of publishing house
CH - SWITZERLAND
Number of pages
14
Pages from-to
1159
UT code for WoS article
000902597400001
EID of the result in the Scopus database
2-s2.0-85144644934