Articles
MARKER ASSISTED SELECTION IN AN APPLE ROOTSTOCK BREEDING FAMILY
Article number
1100_2
Pages
25 – 28
Language
English
Abstract
Rootstock breeding is a slow process, particularly since the evaluation for
horticultural production traits, such as yield and fruit quality, is laborious and timeconsuming.
Foreground selection for simply inherited traits that are essential for new
rootstocks, such as dwarfing and resistances, can result in considerable efficiencies.
We
demonstrate this in an AN001R03T042 × CG202 apple rootstock seedling family, which
was reduced from 236 progeny to 44, all carrying the Dw1 gene in homozygous or
heterozygous state, the FB-R5 for fire blight resistance, and the pyramided Er2 and Er3
genes for more durable woolly aphid resistance.
horticultural production traits, such as yield and fruit quality, is laborious and timeconsuming.
Foreground selection for simply inherited traits that are essential for new
rootstocks, such as dwarfing and resistances, can result in considerable efficiencies.
We
demonstrate this in an AN001R03T042 × CG202 apple rootstock seedling family, which
was reduced from 236 progeny to 44, all carrying the Dw1 gene in homozygous or
heterozygous state, the FB-R5 for fire blight resistance, and the pyramided Er2 and Er3
genes for more durable woolly aphid resistance.
Authors
H. Bassett, M. Malone, S. Ward, T. Foster, D. Chagné, V. Bus
Keywords
Malus, dwarfing, resistance, fire blight, woolly apple aphid
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