Table 2.

nkx2.5 and ceh-22 rescue the growth defects in ceh-22(cc8266)

Genotype	Percent animals reaching adult after 4 days at 20°C*	n
Wild type (N2)	98	305
ceh-22(cc8266)	36	230
ceh-22(cc8266); cuEx(ceh-22∷nkx2.5 cDNA)	68	104
ceh-22(cc8266); cuEx(ceh-22∷ceh-22 cDNA)	77	203

^*Embryos segregating from the indicated strains were picked to fresh plates and incubated at 20°C. After 4 days, the number of animals reaching adulthood was determined. Neither ceh-22∷ceh-22 nor ceh-22∷nkx2.5 rescued a partially penetrant sterile phenotype exhibited by ceh-22(cc8266) (ref. 15; data not shown). This phenotype is rescued by transformation with a ceh-22 genomic DNA fragment; thus, we believe the ceh-22∷ceh-22 and ceh-22∷nkx2.5 may be missing sequences necessary for rescue of sterility.