Blackberry ‘Hillquist’ – Primocane Fruiting

University of Arkansas System Division of Agriculture primocane-fruiting blackberry breeding selection APF-544T with ripe fruit on floricanes at the base and immature fruit, flowers, and buds on primocanes at the top of the canopy. Photo by Margaret Worthington.

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Alexander Silva, Margaret Worthington, Michael A. Hardigan, and Nahla V. Bassil. This success story discusses how scientists mapped the primocane-fruiting (annual flowering) gene in blackberry and developed reliable diagnostic markers that breeding programs can use to identify seedlings with this valuable trait. Improved analysis of the genome sequence for the Rubus argutus ‘Hillquist’ enabled identification of different genetic variants associated with primocane fruiting.

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