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Tolerance to ryegrass mosaic virus and its inheritance
Author(s) -
WILKINS P. W.
Publication year - 1974
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.1744-7348.1974.tb01497.x
Subject(s) - biology , inheritance (genetic algorithm) , mosaic , mosaic virus , plant virus , virology , virus , genetics , gene , archaeology , history
SUMMARY Plant yield within and between four cultivars of perennial ryegrass infected with ryegrass mosaic virus (RMV) was closely related to symptom severity. Distribution of symptom severity was continuous in four perennial ryegrass and four Italian ryegrass cultivars infected with a severe RMV isolate, and also in another perennial ryegrass cultivar infected with a severe isolate of the virus, a mild one and one of intermediate severity. Symptom expression was polygenically inherited in both Italian (cv. RvP) and perennial (cv. S.24) ryegrass. Both additive and non‐additive genetic variation was present in RvP, but the variation in S.24 was additive only. No significant maternal inheritance was present in either species.