View Full Table | Close Full ViewTable 1.

Prospective targeted recombination and genetic gains in the intermated B73 × Mo17 maize population (Experiment 1; Lewis et al., 2010; Liu et al., 2010) and in a maize diversity panel (Experiment 2; Schaefer and Bernardo, 2013). Predicted performance assumes one (x = 1) or two (x = 2) targeted recombinations on each of the 10 maize chromosomes.

 
Trait Experiment 1
Experiment 2,
Best 1 out of 180‡ Predicted performance
RETargeted§
mean¶ of RETargeted
Mean† x = 1 x = 2 x = 1 x = 2 x = 1 x = 2
%
Grain yield (kg ha−1) 8982 9618 10,330 10,599 212 254
Moisture (g kg−1) 201 170 125 93 240 340
Yield index 3.35 4.5 6.15 6.58 242 280
Lignin (g kg−1) 211 207 195 187 403 631
Glucose release (g kg−1) 516 539 573 598 243 352
Plant height (cm) 282 259 224 204 252 337 208 (108–600) 263 (126–815)
Anthesis date (GDD#) 214 (105–536) 261 (119–637)
Starch (g kg−1) 213 (108–556) 274 (125–754)
Protein (g kg−1) 189 (109–577) 232 (126–692)
Mean of the 180 intermated B73 × Mo17 recombinant inbreds.
Marker-predicted performance of the best recombinant inbred out of 180.
§RETarget, relative efficiency of selection with targeted recombination versus selection without targeted recombination. All RETarget values in Experiment 1 and all mean RETarget values in Experiment 2 were significantly greater (P = 0.05) than 100%.
Among 45 pairwise crosses in Experiment 2. The range is shown in parentheses.
#Growing degree-days