30 Bulletin 302 



TABLE 7. Types Resulting from y\i.i. ( )ther Crosses in Which a Flaked Parent 



Was Used 



* The pollen parent was an Fi flaked plant out of a flaked solid selfed, and so probably simplex for the 

 flaking gene. 



t No. 417 had the same (unflaked white) seed parent as no. 416, but the pollen parent was flaked 

 solid (presumably [?] duplex flaked). 



JNos. 424 and 426 had the same parents. The pollen parent was simplex for flaking. 



Consideration of all the instances in which a flaked solid plant was 

 selfed (and these comprised 23 of various color types) shows that the 

 progeny comprised four types — 53 unflaked solids, 43 flaked solids, 

 30 flaked cream whites, and g unflaked cream whites. 



Eighteen flaked cream whites were selfed, and their progeny comprised 

 three types — 3 flaked solids, 117 flaked cream whites, and 25 unflaked 

 cream whites. There were no unflaked solids. 



The evidence from all selfed plants also adds support to the theory 

 that the flaking gene is a dominant gene, even when present in simplex 

 condition. In this connection the behavior of plants 222-6 and 222-10, 

 when selfed, is significant. Both were unflaked Fi plants, and so pre- 

 sumably nulliplex for the gene. The former threw 64 unflaked plants 

 (and possibly i flaked plant), "^ and the latter threw 60 unflaked plants 

 only. Plant 222-7, a- sib from the same cross, was a flaked light purple. 

 When selfed, 4 of its progeny were not flaked and i was flaked. The 

 flaked one, 222-7-2, was selfed and gave 8 flaked and 3 unflaked. The 

 flaked parent in this case, and also the flaked grandparent, were 

 heterozygous dominants. 



' Plant 222-6-1 1 was three times recorded as dark blue flaked purple, and once as unflaked dark blue. 



146 



