Table 3 QTL identified in this study
1.5 LOD IntervalTrait Mean ± SE
TraitCrossChrnLODPVELeftPeakRightMMMFFF
Plate #FTC4356214.197.817_717_817_1032.7 ± 0.330.7 ± 0.26.7 ± 0.3
Plate #BEPA4359244.995.717_817_917_1033 ± 0.332.1 ± 0.28.8 ± 0.2
Plate # (Eda hets)FTC71845.713.339_523_71_2332 ± 0.531.1 ± 0.328.4 ± 0.5
Lat. GR lengthFTC102463.86.35_195_245_291025 ± 131032 ± 9973 ± 14
Lat. GR lengthFTC202464.69.32_62_346_31039 ± 131032 ± 9967 ± 12
Mid. GR lengthFTC12515.57.430_27_1022_5968 ± 13955 ± 9903 ± 12
Mid. GR lengthFTC42514.87.620_817_842_4987 ± 12938 ± 9902 ± 14
Mid. GR lengthFTC112514.87.511_1111_1811_23984 ± 12943 ± 8893 ± 14
Lat. GR lengthBEPA162984.56.344_444_3115_11152 ± 141130 ± 101078 ± 13
Lat. GR lengthBEPA202984.66.52_312_92_71078 ± 131139 ± 101139 ± 15
Mid. GR lengthBEPA163006.29.144_444_3115_21054 ± 141031 ± 9955 ± 14
Med. GR lengthBEPA163014.36.044_444_3115_2700 ± 13676 ± 9620 ± 13
Med. GR lengthBEPA193014.46.13_73_23_1627 ± 13661 ± 10706 ± 12
  • Lat., lateral; mid., middle; med., medial (see Figure 5A); LOD, log of the odds; PVE, percent variance explained; M, marine allele; F, freshwater allele. The intervals for the chromosome 4 plate number QTL were further defined through fine mapping of recombinant breakpoints (Figure 4E). The FTC chromosome 7 plate number QTL was identified by mapping plate number in Eda heterozygotes. PVE refers to residual variance in Eda heterozygotes, not total plate number variance. LOD significance thresholds (α = 0.05) were 3.85/3.92 for plate number and 3.73/3.90 for gill raker length in the FTC/BEPA crosses, and 4.41 for plate number in Eda heterozygotes in the FTC cross. See Figure 4, A and B, Figure 5, B and C, and Figure S7B for lodplots of the QTL. Gill raker lengths are in microns.