Patterns and levels of pollen mediated gene flow in Lathyrus latifolius

摘要: While gene flow can be an important force in evolution, few direct measures are available the plant literature. Descriptions of movement within populations more common, but have primarily involved crop species and artificially constructed populations. In this study, fractional paternity procedures were used to examine patterns pollen over two years sites Lathyrus latifolius, a bumblebee-pollinated, self-compatible perennial legume. Study consisted 15 23 semi-discrete flowering patches that contained 1 29 distinct genotypes. Distributions distances study differed significantly from expected under random mating. Mean was 14 m. On average, 17.6% (range = 0-52%) matings occurred patch. Outcrossing rates, estimated analysis, ranged 0.87 0.90 across years. Significant heterogeneity among maternal individuals with respect outcrossing immigration indicating mating idiosyncratic each plant. Apparent rates into 5 15%, while estimates total 16 46%. increases between associated decreases density plants.