ON ESTIMATION OF THE RATIO OF POLLEN TO SEED FLOW AMONG PLANT POPULATIONS

摘要: Gene flow occurs in two ways for hermaphrodite plants; seed and pollen flow. Dispersal of biparentally inherited (nuclear) paternally (conifer chloroplast) genes can be mediated by both pollen, whereas maternally (angiosperm chloroplast most mitochondrial) only contributes to dispersal. This produces asymmetrical migration biparentally, may lead different levels population differentiation among them. paper explores the effects contrasting patterns gene plant on their structure under isolation distance, Nei's genetic distance measure, divergence nucleotide sequence between populations phylogenies. The possibilities are discussed using data structure, phylogenies as a basis estimating ratio subpopulations. One important general result from isolation-by-distance model is that greater than genes, which, turn, long dispersal seeds grains takes place. consistent with results obtained previously island stepping-stone models which discretely distributed.