Ethylene-insensitive related phenotypes exist naturally in a genetically variable population of Dianthus barbatus

摘要: Within the genetically variable population of Dianthus barbatus’’Dagan’’, we identified genetic lines with flowers possessing ethylene insensitivite-related phenotypes. The phenotypes are: Caf + , a fresh-looking corolla attached to mature ovary; Inr – whose petals do not inroll during flower senescence; and Rfi inroll, but recover from inrolling. frequencies - were 33%, 25% 75% in inspected, respectively. These relatively high probably due continuous selection over years for open long-lasting corollas. By examining distribution which express two these phenotypes, determined that are independent traits. However, traits might be associated male sterility. Exposure random sample exogenous ethylene, followed by examination resulting inrolling wilting, revealed five different response groups. In one group enhanced both most within this exhibited phenotype. other groups either or included. Two completely non-responsive them life span was twice as long other, all + We concluded phenotype is most-likely related insensitivity wilting controlled via pathways.