Ability of a selfish B chromosome to evade genome elimination in the jewel wasp, Nasonia vitripennis.

ABSTRACT: B chromosomes are non-essential, extra chromosomes that can exhibit transmission-enhancing behaviors, including meiotic drive, mitotic drive, and induction of genome elimination, in plants and animals. A fundamental but poorly understood question is what characteristics allow B chromosomes to exhibit these extraordinary behaviors. The jewel wasp, Nasonia vitripennis, harbors a heterochromatic, paternally transmitted B chromosome known as paternal sex ratio (PSR), which causes complete elimination of the sperm-contributed half of the genome during the first mitotic division of fertilized embryos. This genome elimination event may result from specific, previously observed alterations of the paternal chromatin. Due to the haplo-diploid reproduction of the wasp, genome elimination by PSR cause

SUBMITTER: Lee H 

PROVIDER: S-EPMC10462710 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature