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Table 1.

Heart phenotypes in juveniles

% with phenotype
ExperimentnWild typeHeart tissue in tail (tail-heart)Expanded heartMisc. heart defects
IacZ 46 69.6 4.3 26.1 
Ets:VP16 168 47.6 19.6 32.7 
Ets:WRPW 131 27.5 1.5 6.1 64.9 
FoxF:VP16 120 53.3 13.3 33.3 
FoxF:WRPW 191 51.8 7.9 (2.6) 2.1 38.2 
Ets:VP16+FoxF:WRPW 257 38.1 17.5 (8.2) 8.6 35.8 
Ets:WRPW+FoxF:VP16 53 35.8 5.7 9.4 49.1 
% with phenotype
ExperimentnWild typeHeart tissue in tail (tail-heart)Expanded heartMisc. heart defects
IacZ 46 69.6 4.3 26.1 
Ets:VP16 168 47.6 19.6 32.7 
Ets:WRPW 131 27.5 1.5 6.1 64.9 
FoxF:VP16 120 53.3 13.3 33.3 
FoxF:WRPW 191 51.8 7.9 (2.6) 2.1 38.2 
Ets:VP16+FoxF:WRPW 257 38.1 17.5 (8.2) 8.6 35.8 
Ets:WRPW+FoxF:VP16 53 35.8 5.7 9.4 49.1 

Results are expressed as percentage of juveniles falling into four phenotypic classes. `Wild type' corresponds to a single heart (normal size and position). `Heart tissue in tail' groups juveniles showing either the tail-heart phenotype, disorganized heart-like structure, or twitching tissue in the tail. `Expanded heart' denotes an enlarged heart or the double heart described in Davidson et al. (Davidson et al., 2006). `Miscellaneous heart defects' refer to the absence of heart or disorganized heart in a normal position. (n=number of juveniles scored.)

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