Table 5 Endosperm ProBet1::GUS expression in maternal-effect mutants
Normal ProBET1::GUS expression in defective kernelsaFrequency of kernels expected to have ProBET1::GUS but lacking it in the BETLFrequency of kernels with ProBET1::GUS only in part of the BETLFrequency of kernels with ProBET1::GUS in extra cell layersFrequency of kernels with ProBET1::GUS in ectopic spots
100% normalnbe1 (100%), 
hrl1 (38%), 
sba1 (36%)nol1 (22%), 
bsl2 (6%)20–28%
ecr1,
hrl2,
sba110–25%
stt3,hrl1,
sba1bsl2,
Mn-Uq,
tpn1,
ecr2
 ssc1 (47)
 mrn1 (47)
 mrn2 (77)
 stt2 (35)
94–96% normal
 mrn3 (42)
60–85% normal
 ecr2 (26)
 tpn1 (41)
 Mn-Uq (30)
 stt3 (30)
 nol1 (67)
 ecr1 (33)
 bsl2 (59)
 hrl2 (39)
25–45% normal<10%
Mn-Uq,
tpn1,bsl2,
hrl1<10%
mrn3,
hrl2,
nol1,
nbe1
 hrl1 (60)
 sba1 (63)
0% normal
 nbe1 (32)
  • See Table S2 for supporting data.

  • a Total defective kernels tested for expression in parentheses.