TABLE 3

Summary of the somatic and maternal effects of the various M factors

M factorM function in soma (carriers of M)M function in germ line (NoM animals)
GroupPhenotype (%)Yolk proteins (%)Phenotype (%)Yolk proteins (%)
i MY a ♂ 1000♂ 100ND
MIII b ♂ 1000♂ 100ND
MV a ♂ 1000♂ 100
ii MII a 100♂ 98.30
♀♂ 00♀♂ 1.7
♀ 0♀ 0
MI a 10056 63.2ND
♀♂ 0♀♂ 12.6
♀ 0♀ 24.2
MYL ♂ 6.80♂ 0
♀♂ 93.2♀♂ 2.4
♀ 0♀ 97.6
iii Aga ♂ 0 99.20
♀♂ 0.2♀♂ 0.8
♀ 99.8♀ 0
MYS 6737 96.30
♀♂ 33♀♂ 0.3
♀ 0♀ 3.4

M function was measured by analyzing the sexual phenotype and yolk protein synthesis. Group i: Wild-type M function is shown by exclusively male development. Group ii: M factors with stronger activity in soma than in germ line. Group iii: M factors with stronger activity in germ line than in soma. —, data not of interest; ND, not determined.

  • a Schmidt et al. (1997b).

  • b Hilfiker-Kleiner et al. (1994).