Genes for developmental fruit coloration of acorn squash

Article Abstract:

The mature Table Queen, a cultivar of acron squash, is green colored because of its dominant alleles, mature orange-1 (Mo-1) and mature orange-2 (Mo-2), which determine the fruit coloration during its development. Table Queen has the genotype D/D I-1/I-1 L-2/L-2. Either Mo-1, or Mo-2 is sufficient for green color retention. Two recessive forms of this genes cause complete loss of green color before fruit maturity. The mo-2 and gene D are linked, and are separated by 15 map units. The condition and duration of storage also affect the green coloration of the fruit.

Developmental genetics, Color of fruit, Fruit color

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Multiple allelism at the D locus in squash

Article Abstract:

The squash, Early Prolific Straightneck, contains the D(super s) allele that is recessive to the D allele but dominant to the d allele. The plants with the D(super s) allele have dark stems but light colored fruits. The squash, Vegetable Spaghetti, has light colored stems and fruits. The F(sub 2) generation of the cross between these squashes shows allele segregation. However, in the backcross to Vegetable Spaghetti, the proportion of the dark stemmed plants are less. This indicates that D(super s) darkens the stem but not the fruits.

Observations, Allelomorphism, Alleles, Color of plants, Plant coloration

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Quiescent intense (qi): A gene that affects young but not mature fruit color intensity in cucurbita pepo

Article Abstract:

A cultivar of the Cucurbita pepo with intensely colored young fruits, was crossed with a cultivar of the vegetable marrow group with light colored young fruits, to determine quiescent intense.

Cucurbita

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