杀子因子：影响寄生蜂丽蝇蛹集金小蜂（= 璃眼金小蜂属）性别比例的第三种染色体外因子。
Son-killer: a third extrachromosomal factor affecting the sex ratio in the parasitoid wasp, Nasonia (=Mormoniella) vitripennis.
作者信息
Skinner S W
出版信息
Genetics. 1985 Apr;109(4):745-59. doi: 10.1093/genetics/109.4.745.
Abstract
An extrachromosomal factor, termed son-killer (sk), affects the sex ratio in a parasitoid wasp, Nasonia (=Mormoniella) vitripennis. The factor is maternally transmitted and alters the secondary sex ratio of an infected female through mortality of approximately 80% of the male embryos. No effect on the primary (zygotic) sex ratio is observed. Ninety-five percent of the daughters of an infected female inherit son-killer. The factor can also be transmitted contagiously when the progeny of infected and uninfected females develop simultaneously on a single host. In newly infected strains, the sex ratio effects are equivalent to those in the original.
摘要
一种称为杀雄因子（sk）的染色体外因子影响寄生蜂丽蝇蛹集金小蜂（= 玻璃蝇蛹金小蜂）的性别比例。该因子通过母体传播，导致受感染雌性所产雄性胚胎约80%死亡，从而改变其二代性别比例。未观察到对一代（合子）性别比例有影响。受感染雌性的95%的女儿继承杀雄因子。当受感染和未受感染雌性的后代在同一宿主上同时发育时，该因子也可通过接触传播。在新感染的品系中，性别比例效应与原始品系相同。
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