TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Method: The method for introgressing allele of interest of locus associated with yield trait into Zea mays germplasm, involves (a) selecting Z.mays plant comprising allele of interest of a locus associated with a yield trait, identifiable by PCR amplification of a Z.mays nucleic acid with a pair of oligonucleotides primers chosen from (1) primer pair 1 represented by a primer comprising SEQ ID NO: 52 and a primer comprising SEQ ID NO: 53, (2) primer pair 2 represented by a primer comprising SEQ ID NO: 57 and a primer comprising SEQ ID NO: 58, (3) primer pair 3 represented by a primer comprising SEQ ID NO: 62 and a primer comprising SEQ ID NO: 63, (4) primer pair 4 represented by a primer comprising SEQ ID NO: 67 and a primer comprising SEQ ID NO: 68, (5) primer pair 5 represented by a primer comprising SEQ ID NO: 72 and a primer comprising SEQ ID NO: 73, (6) primer pair 6 represented by a primer comprising SEQ ID NO: 77 and a primer comprising SEQ ID NO: 78, (7) primer pair 7 represented by a primer comprising SEQ ID NO: 82 and a primer comprising SEQ ID NO: 83, (8) primer pair 8 represented by a primer comprising SEQ ID NO: 87 and a primer comprising SEQ ID NO: 88, (9) primer pair 9 represented by a primer comprising SEQ ID NO: 92 and a primer comprising SEQ ID NO: 93, (10) primer pair 10 represented by a primer comprising SEQ ID NO: 97 and a primer comprising SEQ ID NO: 98, (11) primer pair 11 represented by a primer comprising SEQ ID NO: 102 and a primer comprising SEQ ID NO: 103, (12) primer pair 12 represented by a primer comprising SEQ ID NO: 107 and a primer comprising SEQ ID NO: 108, (13) primer pair 13 represented by a primer comprising SEQ ID NO: 112 and a primer comprising SEQ ID NO: 113, (14) primer pair 14 represented by a primer comprising SEQ ID NO: 117 and a primer comprising SEQ ID NO: 118, (15) primer pair 15 represented by a primer comprising SEQ ID NO: 122 and a primer comprising SEQ ID NO: 123, (16) primer pair 16 represented by a primer comprising SEQ ID NO: 127 and a primer comprising SEQ ID NO: 128, (17) primer pair 17 represented by a primer comprising SEQ ID NO: 132 and a primer comprising SEQ ID NO: 133, (18) primer pair 18 represented by a primer comprising SEQ ID NO: 137 and a primer comprising SEQ ID NO: 138, (19) primer pair 19 represented by a primer comprising SEQ ID NO: 142 and a primer comprising SEQ ID NO: 143, (20) primer pair 20 represented by a primer comprising SEQ ID NO: 147 and a primer comprising SEQ ID NO: 148, (21) primer pair 21 represented by a primer comprising SEQ ID NO: 152 and a primer comprising SEQ ID NO: 153, (22) primer pair 22 represented by a primer comprising SEQ ID NO: 157 and a primer comprising SEQ ID NO: 158, (23) primer pair 23 represented by a primer comprising SEQ ID NO: 162 and a primer comprising SEQ ID NO: 163, (24) primer pair 24 represented by a primer comprising SEQ ID NO: 167 and a primer comprising SEQ ID NO: 168, (25) primer pair 25 represented by a primer comprising SEQ ID NO: 172 and a primer comprising SEQ ID NO: 173, (26) primer pair 26 represented by a primer comprising SEQ ID NO: 177 and a primer comprising SEQ ID NO: 178, (27) primer pair 27 represented by a primer comprising SEQ ID NO: 182 and a primer comprising SEQ ID NO: 183, (28) primer pair 28 represented by a primer comprising SEQ ID NO: 187 and a primer comprising SEQ ID NO: 188, (29) primer pair 29 represented by a primer comprising SEQ ID NO: 192 and a primer comprising SEQ ID NO: 193, (30) primer pair 30 represented by a primer comprising SEQ ID NO: 197 and a primer comprising SEQ ID NO: 198, (31) primer pair 31 represented by a primer comprising SEQ ID NO: 202 and a primer comprising SEQ ID NO: 203, (32) primer pair 32 represented by a primer comprising SEQ ID NO: 207 and a primer comprising SEQ ID NO: 208, (33) primer pair 33 represented by a primer comprising SEQ ID NO: 212 and a primer comprising SEQ ID NO: 213, (34) primer pair 34 represented by a primer comprising SEQ ID NO: 217 and a primer comprising SEQ ID NO: 218, (35) primer pair 35 represented by a primer comprising SEQ ID NO: 222 and a primer comprising SEQ ID NO: 223, (36) primer pair 36 represented by a primer comprising SEQ ID NO: 227 and a primer comprising SEQ ID NO: 228, (37) primer pair 37 represented by a primer comprising SEQ ID NO: 232 and a primer comprising SEQ ID NO: 233, (38) primer pair 38 represented by a primer comprising SEQ ID NO: 237 and a primer comprising SEQ ID NO: 238, (39) primer pair 39 represented by a primer comprising SEQ ID NO: 242 and a primer comprising SEQ ID NO: 243, (40) primer pair 40 represented by a primer comprising SEQ ID NO: 247 and a primer comprising SEQ ID NO: 248, (41) primer pair 41 represented by a primer comprising SEQ ID NO: 252 and a primer comprising SEQ ID NO: 253, (42) primer pair 42 represented by a primer comprising SEQ ID NO: 257 and a primer comprising SEQ ID NO: 258, (43) primer pair 43 represented by a primer comprising SEQ ID NO: 262 and a primer comprising SEQ ID NO: 263, (44) primer pair 44 represented by a primer comprising SEQ ID NO: 267 and a primer comprising SEQ ID NO: 268, (45) primer pair 45 represented by a primer comprising SEQ ID NO: 272 and a primer comprising SEQ ID NO: 273, (46) primer pair 46 represented by a primer comprising SEQ ID NO: 277 and a primer comprising SEQ ID NO: 278, (47) primer pair 47 represented by a primer comprising SEQ ID NO: 282 and a primer comprising SEQ ID NO: 283, (48) primer pair 48 represented by a primer comprising SEQ ID NO: 287 and a primer comprising SEQ ID NO: 288, (49) primer pair 49 represented by a primer comprising SEQ ID NO: 292 and a primer comprising SEQ ID NO: 293, (50) primer pair 50 represented by a primer comprising SEQ ID NO: 297 and a primer comprising SEQ ID NO: 298, and (51) primer pair 51 represented by a primer comprising SEQ ID NO: 302 and a primer comprising SEQ ID NO: 303, and (b) introgressing the allele of interest into Z.mays germplasm that lacks the allele. The allele of interest is a favorable allele that positively correlates with an improved yield-associated trait. In step (a) the yield trait is grain yield at standard moisture percentage (YGSMN), and the favorable allele comprises a nucleotide sequence comprising G at nucleotide position 2420 of SEQ ID NO: 2, G at nucleotide position 2709 of SEQ ID NO: 3, T at nucleotide position 368 of SEQ ID NO: 4, C at nucleotide position 4038 of SEQ ID NO: 5, C at nucleotide position 4038 of SEQ ID NO: 6, A at nucleotide position 402 of SEQ ID NO: 7, T at nucleotide position 3050 of SEQ ID NO: 8, C at nucleotide position 408 of SEQ ID NO: 10, C at nucleotide position 160 of SEQ ID NO: 11, C at nucleotide position 311 of SEQ ID NO: 12, A at nucleotide position 338 of SEQ ID NO: 13, an A at nucleotide position 5356 of SEQ ID NO: 14, a C at nucleotide position 5371 of SEQ ID NO: 15, A at nucleotide position 1587 of SEQ ID NO: 16, A at nucleotide position 388 of SEQ ID NO: 17, T at nucleotide position 494 of SEQ ID NO: 18, T at nucleotide position 112 of SEQ ID NO: 19, T at nucleotide position 2458 of SEQ ID NO: 20, T at nucleotide position 4037 of SEQ ID NO: 21, T at nucleotide position 849 of SEQ ID NO: 22, G at nucleotide position 1032 of SEQ ID NO: 24, A at nucleotide position 286 of SEQ ID NO: 25, an A at nucleotide position 346 of SEQ ID NO: 26, an A at nucleotide position 6968 of SEQ ID NO: 27, an A at nucleotide position 6083 of SEQ ID NO: 28, an A at nucleotide position 1729 of SEQ ID NO: 29, C at nucleotide position 1668 of SEQ ID NO: 30, G at nucleotide position 1255 of SEQ ID NO: 32, a C at nucleotide position 1336 of SEQ ID NO: 33, G at nucleotide position 1486 of SEQ ID NO: 34, A at nucleotide position 1742 of SEQ ID NO: 35, T at nucleotide position 631 of SEQ ID NO: 37, T at nucleotide position 3860 SEQ ID NO: 40, A at nucleotide position 903 of SEQ ID NO: 42, A at nucleotide position 1795 of SEQ ID NO: 43, a T at nucleotide position 3597 of SEQ ID NO: 45, an A at nucleotide position 3611 of SEQ ID NO: 46, a C at nucleotide position 1603 of SEQ ID NO: 50, or an A at nucleotide position 2859 of SEQ ID NO: 51, (b) the yield trait is grain moisture at harvest (GMSTP), and the favorable allele comprises a nucleotide sequence comprising a C at nucleotide position 2420 of SEQ ID NO: 2, a T at nucleotide position 2709 of SEQ ID NO: 3, a T at nucleotide position 368 of SEQ ID NO: 4, a T at nucleotide position 4038 of SEQ ID NO: 5, a T at nucleotide position 4038 of SEQ ID NO: 6, a G at nucleotide position 402 of SEQ ID NO: 7, a G at nucleotide position 3050 of SEQ ID NO: 8, a G at nucleotide position 2146 of SEQ ID NO: 9, a T at nucleotide position 408 of SEQ ID NO: 10, a G at nucleotide position 160 of SEQ ID NO: 11, a G at nucleotide position 338 SEQ ID NO: 13, a G at nucleotide position 5356 of SEQ ID NO: 14, an A at nucleotide position 5371 of SEQ ID NO: 15, a G at nucleotide position 1587 of SEQ ID NO: 16, a G at nucleotide position 388 of SEQ ID NO: 17, a G at nucleotide position 112 of SEQ ID NO: 19, an A at nucleotide position 2458 of SEQ ID NO: 20, a C at nucleotide position 1032 of SEQ ID NO: 24, a G at nucleotide position 286 of SEQ ID NO: 25, a T at nucleotide position 6968 of SEQ ID NO: 27, a G at nucleotide position 6083 of SEQ ID NO: 28, a G at nucleotide position 1729 of SEQ ID NO: 29, an A at nucleotide position 1668 of SEQ ID NO: 30, a G at nucleotide position 5516 of SEQ ID NO: 31, a G at nucleotide position 1255 of SEQ ID NO: 32, a G at nucleotide position 1486 of SEQ ID NO: 34, an A at nucleotide position 1742 of SEQ ID NO: 35, a C at nucleotide position 2457 of SEQ ID NO: 36, a G at nucleotide position 945 of SEQ ID NO: 38, an A at nucleotide position 2378 of SEQ ID NO: 39, an A at nucleotide position 3860 of SEQ ID NO: 40, a G at nucleotide position 2519 of SEQ ID NO: 41, a G at nucleotide position 903 of SEQ ID NO: 42, a T at nucleotide position 2040 of SEQ ID NO: 44, an A at nucleotide position 3597 of SEQ ID NO: 45, an A at nucleotide position 3611 of SEQ ID NO: 46, a G at nucleotide position 131 of SEQ ID NO: 47, an A at nucleotide position 2273 of SEQ ID NO: 48, a C at nucleotide position 187 of SEQ ID NO: 49, a C at nucleotide position 1603 of SEQ ID NO: 50, or an A at nucleotide position 2859 of SEQ ID NO: 51, or (c) the yield trait is grain weight per plot (GWTPN), and the favorable allele comprises a nucleotide sequence comprising a G at nucleotide position 1333 of SEQ ID NO: 1, a T at nucleotide position 368 of SEQ ID NO: 4, a T at nucleotide position 4038 of SEQ ID NO: 5, a C at nucleotide position 408 of SEQ ID NO: 10, an A at nucleotide position 338 of SEQ ID NO: 13, a G at nucleotide position 966 of SEQ ID NO: 23, or an A at nucleotide position 286 of SEQ ID NO: 25. Preferred Molecules: The isolated and purified genetic marker further comprises a detectable moiety. The allele of interest comprises one of 51 (538-8821) base pair sequences (SEQ ID NOs: 1-51) all fully defined in the specification, a 86 base pair sequence (SEQ ID NO: 54) fully defined in the specification, a 61 base pair sequence (SEQ ID NO: 59) fully defined in the specification, a 84 base pair sequence (SEQ ID NO: 64) fully defined in the specification, a 79 base pair sequence (SEQ ID NO: 69) fully defined in the specification, a 67 base pair sequence (SEQ ID NO: 74) fully defined in the specification, a 67 base pair sequence (SEQ ID NO: 79) fully defined in the specification, a 105 base pair sequence (SEQ ID NO: 84) fully defined in the specification, a 87 base pair sequence (SEQ ID NO: 89) fully defined in the specification, a 101 base pair sequence (SEQ ID NO: 94) fully defined in the specification, a 152 base pair sequence (SEQ ID NO: 99) fully defined in the specification, a 90 base pair sequence (SEQ ID NO: 104) fully defined in the specification, a 65 base pair sequence (SEQ ID NO: 109) fully defined in the specification, a 83 base pair sequence (SEQ ID NO: 114) fully defined in the specification, a 140 base pair sequence (SEQ ID NO: 119) fully defined in the specification, a 139 base pair sequence (SEQ ID NO: 124) fully defined in the specification, a 69 base pair sequence (SEQ ID NO: 129) fully defined in the specification, a 93 base pair sequence (SEQ ID NO: 134) fully defined in the specification, a 149 base pair sequence (SEQ ID NO: 139) fully defined in the specification, a 130 base pair sequence (SEQ ID NO: 144) fully defined in the specification, a 146 base pair sequence (SEQ ID NO: 149) fully defined in the specification, a 71 base pair sequence (SEQ ID NO: 154) fully defined in the specification, a 144 base pair sequence (SEQ ID NO: 159) fully defined in the specification, a 118 base pair sequence (SEQ ID NO: 164) fully defined in the specification, a 101 base pair sequence (SEQ ID NO: 169) fully defined in the specification, a 122 base pair sequence (SEQ ID NO: 174) fully defined in the specification, a 96 base pair sequence (SEQ ID NO: 179) fully defined in the specification, a 106 base pair sequence (SEQ ID NO: 184) fully defined in the specification, a 162 base pair sequence (SEQ ID NO: 189) fully defined in the specification, a 76 base pair sequence (SEQ ID NO: 194) fully defined in the specification, a 102 base pair sequence (SEQ ID NO: 199) fully defined in the specification, a 113 base pair sequence (SEQ ID NO: 204) fully defined in the specification, a 73 base pair sequence (SEQ ID NO: 209) fully defined in the specification, a 75 base pair sequence (SEQ ID NO: 214) fully defined in the specification, a 89 base pair sequence (SEQ ID NO: 219) fully defined in the specification, a 77 base pair sequence (SEQ ID NO: 224) fully defined in the specification, a 136 base pair sequence (SEQ ID NO: 229) fully defined in the specification, a 66 base pair sequence (SEQ ID NO: 234) fully defined in the specification, a 67 base pair sequence (SEQ ID NO: 239) fully defined in the specification, a 84 base pair sequence (SEQ ID NO: 244) fully defined in the specification, a 101 base pair sequence (SEQ ID NO: 249) fully defined in the specification, a 105 base pair sequence (SEQ ID NO: 254) fully defined in the specification, a 90 base pair sequence (SEQ ID NO: 259) fully defined in the specification, a 63 base pair sequence (SEQ ID NO: 264) fully defined in the specification, a 101 base pair sequence (SEQ ID NO: 269) fully defined in the specification, a 158 base pair sequence (SEQ ID NO: 274) fully defined in the specification, a 158 base pair sequence (SEQ ID NO: 279) fully defined in the specification, a 60 base pair sequence (SEQ ID NO: 284) fully defined in the specification, a 129 base pair sequence (SEQ ID NO: 289) fully defined in the specification, a 86 base pair sequence (SEQ ID NO: 294) fully defined in the specification, a 74 base pair sequence (SEQ ID NO: 299) fully defined in the specification, and a 157 base pair sequence (SEQ ID NO: 304) fully defined in the specification, and one of 75 (63-8507) base pair sequences all fully defined in the specification. EXAMPLE - No suitable example given.