brother-sister inbreeding; sibling mating
Technical term used in biology and animal breeding to describe mating between a brother and sister.
Brother-sister inbreeding can reduce genetic diversity.
This study examined the effects of sibling mating.
近親交配 is a broader term for inbreeding among close relatives, while 兄妹交配 specifically refers to mating between a brother and sister.
Compound of 兄妹 (kyōdai, 'brother and sister') and 交配 (kōhai, 'mating' or 'crossbreeding').