Miniature kernel
Selfed yellow dent Mn*-N2423A/+ heterozygous mutant ear segregating for small loose pericarp kernels (2dose) and tiny collapsed kernel casings(3 dose) with endosperm missing
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miniature kernel
Photo of ears homozygous for miniature (mn1) seed (top) and segregating 1:1 for normal vs. miniature kernels. Note loose pericarp from incomplete filling by the smaller endosperm of the mutant kernels.
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miniature kernel
Selfed colored ACR homozygous mn*-N227B mutant ear showing small dilute colored loose pericarp kernels. Note occasional large dilute kernels, indicating chance combination of favorable modifiers, bringing phenotype except for dilution back to near normal.
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miniature kernel
Colored ACRPr ear from the cross +/mn*-378C x homozygous mn*-378C showing 1:1 segregation for normal and small grayish loose pericarp mutant kernels with purple silk attachment; note ear also has mottled kernels, indicating possible segregation for r1 in the female parent. Note also a tiny purple spot around silk attachment of many of the mn kernels suggesting general presence in the mutant of a sunlight requiring pigment expressed at the base of the fiber optic like silk.
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miniature kernel
A normal yellow flint ear (top) and a selfed homozygous mn*-N1373A mutant ear (bottom) showing colored navajo spot on some kernels due to R-nj indicating slow growing healthy aleurone and opaque endosperm tissue that did not fill out the loose pericarp
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miniature kernel
A selfed ear of homozygous mn4-N888C(bottom) segregating for cp3-N888A and, for comparison, a normal sib ear (top). All the kernels on the mn4 ear, which segregates 3:1 for cp3 and 15:1 for a collapsed orange pericarp phenotype, are smaller and have loose pericarp. The few nearly normal-appearing kernels are probably due to chance combination of favorable modifiers which tend to overcome the weakness of mn.
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miniature kernel
mn4-N888C, miniature kernel: photo of a Selfed ear of a mn4 mn4, + cp3 plant showing all small loose pericarp kernels with a 3:1 segregation for cp3 and a 15:1 segregation for collapsed orange pericarp. The few normal-appearing kernels are probably due to the chance combination of favorable modifiers which tend to overcome the weakness of mn4 and cp3.
