In hybrid inviability between Xenopus laevis and Xenopus tropicalis, genomic regions on two X. laevis chromosomes are incompatible with the X. tropicalis cytoplasm and are mis-segregated during mitosis, leading to unbalanced gene expression at the maternal to zygotic transition, followed by cell-autonomous catastrophic embryo death.
- Romain Gibeaux
- Rachael Acker
- Rebecca Heald