Table 4. Qualitative comparison of genetic architecture between fitness, and fitness components for the four different line pairs.

Trait and line pair	A	D	AA	AD	DD	Ma	Md	Cyt
Fitness
C1↔R1	++	++
C2↔R2	++	++
B1↔S1	++	−−			++	++		−
B2↔S2	++	−−				−−
Number of fruits
C1↔R1	++	++
C2↔R2	++	++						−
B1↔S1	++	−				++	−	−
B2↔S2	++	−−	−−			−−
Seed number per fruit
C1↔R1	+ns	−ns						−ns
C2↔R2	−ns	+ns
B1↔S1	−ns	−−	−−		++ns	+
B2↔S2	+	−−				−−	−

Abbreviations as in Table 2. Sign indicates the sign of the parameter estimate; doubled signs indicate that the parameter estimate was large relative to the mean (>10%). Nonsignificant parameter estimates are indicated with ^ns.