J 2024

Reproduction-associated pathways in females of gibel carp (Carassius gibelio) shed light on the molecular mechanisms of the coexistence of asexual and sexual reproduction

JACQUES, Florian; Tomáš TICHOPÁD; Martin DEMKO; Vojtěch BYSTRÝ; Kristína KŘÍŽOVÁ et al.

Základní údaje

Originální název

Reproduction-associated pathways in females of gibel carp (Carassius gibelio) shed light on the molecular mechanisms of the coexistence of asexual and sexual reproduction

Vydání

BMC Genomics, London, BioMed Central Ltd, 2024, 1471-2164

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10603 Genetics and heredity

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 3.700

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/24:00136741

Organizační jednotka

Přírodovědecká fakulta

EID Scopus

Klíčová slova anglicky

Carassius gibelio; Reproduction; Gynogenesis; Asexual reproduction; Evolution of sexual reproduction; Meiosis; Differential expression analysis; Oogenesis; Transcriptomics

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 25. 3. 2025 18:11, Mgr. Eva Dubská

Anotace

V originále

Gibel carp (Carassius gibelio) is a cyprinid fish that originated in eastern Eurasia and is considered as invasive in European freshwater ecosystems. The populations of gibel carp in Europe are mostly composed of asexually reproducing triploid females (i.e., reproducing by gynogenesis) and sexually reproducing diploid females and males. Although some cases of coexisting sexual and asexual reproductive forms are known in vertebrates, the molecular mechanisms maintaining such coexistence are still in question. Both reproduction modes are supposed to exhibit evolutionary and ecological advantages and disadvantages. To better understand the coexistence of these two reproduction strategies, we performed transcriptome profile analysis of gonad tissues (ovaries) and studied the differentially expressed reproduction-associated genes in sexual and asexual females. We used high-throughput RNA sequencing to generate transcriptomic profiles of gonadal tissues of triploid asexual females and males, diploid sexual males and females of gibel carp, as well as diploid individuals from two closely-related species, C. auratus and Cyprinus carpio. Using SNP clustering, we showed the close similarity of C. gibelio and C. auratus with a basal position of C. carpio to both Carassius species. Using transcriptome profile analyses, we showed that many genes and pathways are involved in both gynogenetic and sexual reproduction in C. gibelio; however, we also found that 1500 genes, including 100 genes involved in cell cycle control, meiosis, oogenesis, embryogenesis, fertilization, steroid hormone signaling, and biosynthesis were differently expressed in the ovaries of asexual and sexual females. We suggest that the overall downregulation of reproduction-associated pathways in asexual females, and their maintenance in sexual ones, allows the populations of C. gibelio to combine the evolutionary and ecological advantages of the two reproductive strategies. However, we showed that many sexual-reproduction-related genes are maintained and expressed in asexual females, suggesting that gynogenetic gibel carp retains the genetic toolkits for meiosis and sexual reproduction. These findings shed new light on the evolution of this asexual and sexual complex.

Návaznosti

GA22-27023S, projekt VaV
Název: Evoluční a ekologické mechanizmy koexistence asexuální a sexuální reprodukce u ryb
Investor: Grantová agentura ČR, Evolutionary and ecological mechanisms of the coexistence of asexual and sexual reproduction in fish
90267, velká výzkumná infrastruktura
Název: NCMG III