gene bridge
gene bridge
the means by which a plant pathogen can survive between the main host-growing seasons by living on host plants grown out of the normal season. Thus, for example, a cereal pathogen can often transfer in September from a mature, spring-sown host to newly sown winter cereal plants.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005