A Marker Gene in Southern Dewberry (Rubus trivialis Michx.)

in HortScience
Creighton L. GuptonU.S. Department of Agriculture. Agricultural Research Service, Small Fruit Research Station, P.O. Box 287, Poplarville, MS 39470

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Anthocyanin-deficient dewberries in Mississippi were evaluated for possible use as a source of marker genes for blackberries. Ratios of normal to anthocyanin-deficient plants from test crosses suggested single-locus control of stem color, with anthocyanin deficiency a recessive trait. Its simple inheritance and easy identification in seedlings provide potential for anthocyanin deficiency (t) to be used as a marker gene in blackberry genetic studies.

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