换一批
换一批摘要Flowering plants have evolved numerous intraspecific and interspecific reproductive barriers to avoid the inbreeding of depressing offspring and to maintain the integrity of the species.Within species,self-incompatibility(SI)is a widely utilized mech-anism via rejecting self-pollen and accepting cross-compatible pollen.In the interspecific cross,pollen is unilaterally incompat-ible(UI)on SI pistils but unilaterally compatible(UC)on self-compatibility(SC)pistils(Igic et al.,2008).
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