...pair between C. nigoni (JU1421) and C. briggsae (AF16), comprising a PGM-encoding gene, Cbr-shls-1 in C. briggsae, and
a C. nigoni–specific F-box gene, Cni-neib-1 (Xie et al. 2024). Cni-NEIB-1 selectively targets Cbr-SHLS-1 for degradation, leading to hybrid embryonic lethality, which is consistent...