The genetic basis of hybrid male sterility in sympatric Primulina species

Table 1 Mid-parent heterosis (MPH) for PFR and 12 flower and leaf traits in our previous study. If %MPH > 0, this represents the percentage of individuals showing MPH > 0 in all of the measured F₂ individuals

Trait	Unit	MPH of F₁	MPH of F₂			%MPH > 0
Trait	Unit	MPH of F₁	Mean ± SD	Max	Min	%MPH > 0
Pollen fertility rate	%	−44.5%	−0.469 ± 32.58	−0.047	− 1.000	0.00
Upper petal width	mm	7.4%	−0.103 ± 13.21	0.294	−0.412	18.95
Lower petal width	mm	1.2%	−0.111 ± 11.81	0.231	−0.438	20.53
Corolla width	mm	5.0%	−0.053 ± 12.80	0.479	−0.339	32.63
Corolla height	mm	18.6%	−0.060 ± 11.94	0.330	−0.407	35.26
Corolla length	mm	−41.2%	−0.007 ± 13.94	0.323	−0.472	47.37
Pistil length	mm	4.2%	0.003 ± 10.87	0.284	−0.245	50.00
Stamen length	mm	−0.2%	−0.002 ± 10.63	0.310	−0.288	51.31
Maximum leaf length	cm	−36.0%	−0.389 ± 24.89	0.019	−0.697	0.52
Maximum leaf width	cm	−7.8%	−0.120 ± 25.91	0.466	−0.559	17.28
Chlorophyll a concentration	mg/m²	36.4%	0.559 ± 11.75	1.192	−0.050	98.97
Chlorophyll b concentration	mg/m²	35.1%	0.484 ± 19.23	1.116	−0.188	97.42
Carotenoid concentration	mg/m²	24.2%	0.496 ± 11.90	1.103	−0.113	98.97

ISSN: 2730-7182