SHULL: DUPLICATION OF A LEAF-LOBE FACTOR 435 
TABLE 4 
The Composition of F, Progenies from Crosses of Bursa Heegeri simplex and Members 
of Wild Biotypes of B. bursa-pastoris which Probably Possessed Dimeric B lobes 
Pedigree Numbers 
ae heteris rhom- tenuts sintplex Ratio 
Paes Pirate F AB Aeidee Ab a Bib 
F 1334 | | 15337 | 112 2y7, 20 2 6.427214 
Sronwgen; x 1142545) 15338 58 20 12 4 4.88 : 13 
Holland 
| 13179 | 15339 189 109 14 EQ) sel OAysaT 
| 13220 15379| = 286 | — 35 SSL 7a 
x 14367 | 15380-}+-— — 56 — ea Ocoee t 
1376 15381 42 8 4 I 10;00:2)1 
| 13222 | 
x 14368 15384 216 86 II 7 163753 0 
1376 | | | 
| 13225 | | 15391 60 13 16 20 2103)" 1° 
Berlin Pb xe MLAB 7 2n fF r5302 53 16 15 7 2 LAane 
| 13179 | 15393 208 38 8 10 13.67 2: 5 
527) 15307 | 170 26 15 2° NER SQ cr 
x 14374 15398 72 25 2 I 72g | 
1376 o 32-33 : 
13229 | 15401 | 116 30 18 7 5.84 : 13 
X | 14377 | 15402 | 162 5 2 2 AU 75 30 
13179 | 15403 243 74 4 2 52.83 : 1 
| 13237 | 15404 | 218 69 14 9 12.48 : I 
X | 14378 | 15405 189 do Wi eS 5 14.56: 1 
1376 15406 | 210 Wa 15 5 14335 51 
| 15407 — 151 — 17 | 8.88:1 
| 15408 = 103 = 12 | 8.58:1 
13232.\| 15409 — 106 — EY .|\e9i6321 
Bremen x 14379 | 15410 — 282 — 18 || r5:67020 
1376 | TSAco | se 167 = 12 13/02) 351 
| 15412 — 262 _— 6r | az0cr 
15413 a TOSS see 23e {| (So: O5e sn 
13237 | 15415 -— 202 | — 27 | AeASh 
x 14383 15416 — 298 — 267 ites Grea 
1376 15417 257 = 19 | 13.53 :1 
1337 | 
Wales x 14357 | 15355 — 85 _ 6 ae 
1338 iu | 
3 These families passed the winter in the open field, and suffered considerable 
injury. This doubtless accounts tor their very great deviation from the 15: 1 
ratio. Small samples from each of these tamilies retained in the greenhouse vie!ded 
ratios much nearer to 15:1. Only for this reason are these families included here 
