Amino acid replacement: K43term.
A5893689T
K43term | Acp26Aa-PA
The early egg production of wild-type females housed with Acp26Aa1/Df(2L)PM101 males is significantly lower than that of wild-type females housed with Acp26Aa2/Df(2L)PM101 males. The lifetime egg production of wild-type females mated with Acp26Aa1/Df(2L)PM101 males is not significantly different than that of wild-type females mated with Acp26Aa2/Df(2L)PM101 males. The early (days 3 and 6) eggs laid by wild-type females mated with Acp26Aa2/Df(2L)PM101 males are significantly less fertile than those laid by wild-type females mated with Acp26Aa1/Df(2L)PM101 males. The survival of wild-type females mated with Acp26Aa1/Df(2L)PM101 males is not significantly different from the survival of wild-type females mated with Acp26Aa2/Df(2L)PM101 males.
The number of eggs passing through the genital tracts of females mated to Acp26Aa1 males is less than half the number seen in controls, suggesting a low ovulation rate. Egg deposition is initiated at the same time as controls. The mates of Acp26Aa1 males are specifically defective in the stimulated release of oocytes by their ovaries. The effect is most pronounced on numbers of eggs found in the lateral oviducts and this effect was seen very soon post mating. No accumulation of undeposited eggs is seen.
Male flies are viable and morphologically normal externally and internally, expression of other male product genes is normal. Lack of Acp26Aa in males causes a small but statistically significant decrease in egg laying by their mates but only for 1 day after mating. Fertility, receptivity and sperm competition in mated females is not affected by lack of Acp26Aa.