Achiasmatic meiosis underlies propagation of clonal genome and B chromosomes in hexaploid Carassius gibelio females but not males
Dmitrij Dedukh, Heorhii Zolotarov, Karolina Komashchuk, Manfred Schartl, Josef Wanzenböck, Zuzana Majtánová, Yukiko Imai, Vladimir Trifonov, Karel Janko, Dunja K. Lamatsch
The paper shows that hexaploid Carassius gibelio females use achiasmatic meiosis to produce clonal eggs, while males have reduced fertility due to meiotic issues, and B chromosomes are stably inherited as univalents.
bioRxiv · Jun 3, 2026 · PreprintGenetics