On the origin of neo-sex chromosomes in the Neotropical dragonflies Rhionaeschna bonariensis and R. planaltica (Aeshnidae, Odonata)
Identifikátory výsledku
Kód výsledku v 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>
Nalezeny alternativní kódy
RIV/60076658:12310/22:43905327
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
On the origin of neo-sex chromosomes in the Neotropical dragonflies Rhionaeschna bonariensis and R. planaltica (Aeshnidae, Odonata)
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
On the origin of neo-sex chromosomes in the Neotropical dragonflies Rhionaeschna bonariensis and R. planaltica (Aeshnidae, Odonata)
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10603 - Genetics and heredity (medical genetics to be 3)
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Insects
ISSN
2075-4450
e-ISSN
2075-4450
Svazek periodika
13
Číslo periodika v rámci svazku
12
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
14
Strana od-do
1159
Kód UT WoS článku
000902597400001
EID výsledku v databázi Scopus
2-s2.0-85144644934