摘要: ABSTRACT Nonhost resistance is hypothesized to protect plants in a nonspecific manner. For highly specialized parasites, this hypothesis applies not only distantly related but also resistant congeners of the host species. Congeners Populus spp. were hybridized create two interspecific hybrid poplar pedigrees (i.e., trichocarpa × P. deltoides and maximowiczii). The planted randomized, replicated “common garden” on Vancouver Island so that they exposed parasites native trichocarpa. Monogenic oligogenic ascomycetous, parasitic fungi Venturia inopina Taphrina sp.) segregated parasite-specific manner each pedigree. However, these genes inherited from host, Instead, was allopatric, nonhost congeners, (eastern cottonwood) maximowiczii (Japanese poplar). Thus, we found major condit...
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