Table 4.

Spontaneous sh mutations from Sh lines used as male parents

Sh genotype	Effective kernel population	Shrunken selections	Shrunken mutations	Mutation frequency (×10−5)	Nature of sh mutants
W22 Sh-B73	439,943	24	5	1.1 (0.4–2.6)*	One deletion
					Two MULE
					Two undefined
W22 Sh-McC	408,468	14	8	2.0 (0.7–3.4)*	Five Hopscotch
					Two deletions
					One undefined

^*95% Confidence limits.