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Table 3 Summary of significant SSR marker-trait pairs from the association test results in the S. oblata populations after correction for multiple testing errors. P value: significance level for association (significance is P < 0.01); Q value: a correction for multiple testing (FDR (Q) < 0.01); R2: percentage of the phenotypic variance explained; a: additive; d: dominance; Sp: standard deviation for the phenotypic trait under consideration. The algorithm and formulas for gene action were calculated as previously reported [36, 37]

From: Development of EST-SSR markers and association mapping with floral traits in Syringa oblata

Trait Locus P value Q value R2 (%) 2a d d/a 2a/Sp
Inflorescence length SO208 2.61E-05 6.53E-05 3.42 1.264 5.016 7.934 0.046
SO112 4.60E-08 2.48E-30 7.69 − 5.468 0.889 − 0.325 −0.200
Inflorescence width SO627 6.21E-04 5.10E-29 7.29 −0.810 0.125 −0.308 −0.052
Corolla lobe length SO608 3.60E-16 5.41E-26 4.30 −0.171 0.231 −2.696 −0.110
SO695 8.95E-05 1.80E-15 4.59 −0.367 − 0.222 1.211 −0.235
Corolla lobe width SO060 1.24E-31 1.15E-09 5.36 −0.705 0.116 − 0.328 − 0.705
SO311 5.18E-04 1.53E-06 3.65 0.052 0.055 2.104 0.052
SO531 3.45E-04 1.53E-06 0.36 4.043 0.362 0.179 4.043
SO695 6.50E-03 7.16E-05 3.68 −0.161 −0.049 0.609 −0.161
Corolla tube length SO649 3.58E-05 9.40E-05 20.76 −0.059 0.008 −0.258 −0.025
Corolla lobe (state) SO790 5.35E-07 1.49E-04 0.93 1.602 0.913 1.140 2.347
SO503 4.78E-04 7.16E-05 11.78 0.277 0.146 1.057 0.406
SO415 5.17E-05 7.35E-04 2.30 0.182 0.208 2.288 0.267
SO663 2.88E-10 7.40E-04 1.89 0.034 0.045 2.634 0.050
Corolla lobe (periphery) SO104 1.60E-03 8.28E-04 4.61 0.794 0.196 0.493 0.989
SO505 8.11E-27 8.70E-04 9.58 0.085 0.706 16.610 0.106
SO331 6.96E-04 8.87E-04 7.08 0.290 0.022 0.150 0.361
Florescence SO790 5.10E-30 1.78E-03 7.92 2.935 1.389 0.947 7.919
Petal color SO104 7.54E-04 4.48E-03 2.62 0.074 −0.296 −8.008 0.056
SO805 4.60E-03 6.50E-03 4.00 0.066 0.189 5.756 0.050