ISHS Acta Horticulturae 505: VII International Symposium on Rubus and Ribes
HYBRIDBERRIES AND BLACKBERRIES IN NEW ZEALAND - BREEDING FOR SPINELESSNESS |
| Authors: | Harvey K. Hall, M. Jo Stephens |
| Keywords: | Rubus, Genetic Spinelessness, Lincoln Logan |
| Abstract:
Breeding for spinelessness has been a priority in the New Zealand blackberry and hybridberry programme since its inception. This paper discusses the merits of different genes for spinelessness, both recessive and dominant, and gives details of progress using the ‘Lincoln Logan’ gene for breeding a range of hybridberry and blackberry types with ploidy levels from tetraploid (4x) to duodecaploid (12x). The ‘Lincoln Logan’ gene has proved to be very valuable, giving stable, dominantly-inherited spinelessness to progenies and after 2–3 generations, fruitful productive tetraploid blackberries, hexaploid types with red or black fruit, septaploid or aneuploid ‘Boysenberry’ types with wine-red to black fruit, octaploid types with red to black fruit and decaploid to duodecaploid types with black fruit have been selected. | |
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