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Resistance to potato virus Y and potato virus X in Solanurn brevidens
Author(s) -
GIBSON R. W.,
PEHU E.,
WOODS R. D.,
JONES M. G. K.
Publication year - 1990
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.1744-7348.1990.tb06594.x
Subject(s) - biology , potato virus y , potato virus x , potyvirus , virology , solanum tuberosum , virus , potexvirus , aphid , solanaceae , plant virus , botany , genetics , gene , coat protein , rna
Summary Although Solanum brevidens could be infected with potato virus X (PVX), potato virus Y 0 (PVY 0 ) and PVY N , no symptoms of infection were apparent and tests by double antibody sandwich ELISA, electron microscopy and sap transmission to local lesion test plants indicated that the titres of PVX were less than a tenth of those of PVY 0 and PVY N were less than a hundredth of those in infected plants of PDH40, a susceptible dihaploid clone of S. tuberosum cv. Pentland Crown. Furthermore, PVY 0 ‐ and PVY N ‐ infected leaves of S. brevidens were a poor source of inoculum in aphid transmission tests. The possibility of a common mechanism and genetic basis of resistance to PVY, PVX and potato leaf roll virus in S. brevidens is discussed.