Table 3 Rate of deterioration observed for parental lines and the plants from seven F2 families

From: Molecular markers reliably predict post-harvest deterioration of fresh-cut lettuce in modified atmosphere packaging

F2 family and parental phenotypes

Rate of deterioration in parents and F2 families

H 2

Rate of deterioration in F2 plants with different allelic statusb

Dominance to additivity ratio (d/a)

Parent with slow deterioration

F2 progeny

Parent with rapid deterioration

Homozygous—favorable alleles

Heterozygous

Homozygous—unfavorable alleles

Lob × PI (slow × rapid)

84a (64–105)

366 (337–395)

310 (279–341)

0.81

187 (147–228)

395 (376–413)

443 (420–465)

0.62

LG × Sal (rapid × slow)

154 (133–175)

207 (173–242)

433 (419–447)

0.90

81 (40–121)

168 (125–211)

317 (284–350)

−0.33

LB × TS (rapid × slow)

154 (124–185)

321 (294–347)

404 (391–417)

0.69

207 (163–250)

340 (315–364)

407 (369–444)

0.33

Pav × Eru (rapid ×  slow)

269 (243–294)

377 (355–399)

446 (429–462)

0.64

259 (203–315)

377 (361–393)

463 (444–483)

0.15

Bib × KH (rapid × slow)

126 (98–155)

276 (247–305)

420 (400–439)

0.72

185 (150–219)

275 (243–306)

413 (382–444)

−0.21

LG x BLM (rapid × slow)

99 (75–124)

288 (256–320)

433 (419–447)

0.85

112 (61–163)

262 (223–302)

382 (364–400)

0.11

BB × LB (slow × rapid)

151 (125–179)

325 (292–358)

404 (391–417)

0.87

143 (46–239)

303 (265–340)

410 (383–437)

0.20

Pooled F2 families

148 (135–161)

309 (296–321)

408 (396–420)

0.78

175 (154–197)

309 (294–324)

397 (384–412)

0.20

  1. H2 broad sense heritability, d/a dominance to additivity ratio that indicates the mode of inheritance. The value of 1 indicates that alleles for rapid deterioration are dominant, the value of 0 indicates that alleles for rapid deterioration have an additive effect, and the value of −1 indicates that alleles for rapid deterioration are recessive
  2. aMean values of the area under the deterioration progress steps (AUDePS), and 95% confidence interval of the mean. Lower AUDePS score indicates a slower rate of deterioration.
  3. bAllelic status at the SNP marker P-012.1-149 (six families) or P-012.1-096 (Bib × KH family, only)
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