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Genetic analysis of resistance in Brussels sprout to cauliflower mosaic and turnip mosaic viruses
Author(s) -
PINK D. A. C.,
SUTHERLAND R. A.,
WALKEY D. G. A.
Publication year - 1986
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1986.tb03200.x
Subject(s) - biology , turnip mosaic virus , diallel cross , cauliflower mosaic virus , mosaic virus , heritability , cultivar , inbred strain , inoculation , potyvirus , gene , virus , plant virus , genetics , botany , virology , horticulture , hybrid , genetically modified crops , transgene
SUMMARY A total of 28 inbred lines of Brussels sprout were assessed in the glasshouse for their reaction to inoculation with cauliflower mosaic (CaMV) or turnip mosaic (TuMV) virus. There was significant variation for resistance to both viruses. From the 28 inbred lines parents were chosen for two 9 × 9 diallel crossing programmes. The parents and their F 1 progeny were assessed for their reaction to CaMV or TuMV in the field. There was significant additive and non‐additive (dominance) variation but no maternal effects. Resistance to both viruses was generally dominant but with some evidence of a recessive gene for resistance to CaMV. Resistance to TuMV and CaMV was apparently controlled by at least four genes and two genes respectively. The heritability of resistance to each virus was high. The implications for breeding F 1 hybrid Brussels sprout cultivars are discussed.