Hsp70 promoter sequences from -94bp to +89bp are fused upstream of fs(1)K10 sequences from 158bp upstream of the translation start site to 864bp downstream of the polyA addition site.
fs(1)K10hs.PS partially rescues fs(1)K10LM00
Expression of fs(1)K10hs.PS restores near complete fertility (greater than 95% egg hatching) to fs(1)K10LM00 females. Maximal rescue occurs with heat shocks applied at any time between the middle of stage 7 and the middle of stage 8. Heat shocks applied at any time between the middle of stage 8 to the end of stage 8 can restore up to 35% fertility. No fertility is restored if heat shocks are applied during or after the end of stage 8.