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Immunity from raspberry vein chlorosis virus in raspberry and its potential for control of the virus through plant breeding
Author(s) -
JENNNINGS D. L.,
JONES A. T.
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.tb07664.x
Subject(s) - blowing a raspberry , biology , cultivar , immunity , chlorosis , virus , virology , horticulture , immune system , immunology
SUMMARY The apparent immunity of five cultivars of red raspberry and two of black raspberry from graft inoculation with raspberry vein chlorosis virus (RVCV) was established or confirmed. The segregations obtained from selfs and crosses with infectible cultivars of four of the red raspberry cultivars and the black raspberry cultivar Cumberland indicated that the apparent immunity was not determined by a single major gene. The range in severity of the symptoms expressed in the segregates suggested either that sensitivity to infection is under separate genetic control, or that immunity and sensitivity are opposite expressions of a character which varies continuously rather than discontinuously. Nevertheless, although the precise mechanism of immunity remains unclear, the high proportion of immune segregates obtained in crosses indicated that breeding for immunity from RVCV is feasible and offers the best prospect for control of the virus.