Control and Consequences of Inbreeding in Erythronium grandiflorum

有花植物被归类为自交不亲和的 如果它们在自花授粉后不结种子， 兼容，如果他们这样做。 最近的研究表明， 区别过于简单化。 一些植物，包括 冰川百合，如果只有自花花粉， 应用于柱头，但会优先产生异交 来自自交和异交花粉混合物的种子。 拟议 研究使用遗传标记、花粉颜色标记和DNA- 荧光花粉核标记物染色。 新颖技术 用于移植风格和确定遗传学 败育种子将与标记物结合以分离出 授粉后阶段，在此阶段，优先进行杂交， 在混合授粉后表达。 可能发挥的作用 近亲繁殖的影响将受到特别关注。 调查结果应构成最全面的调查 到目前为止，一个鲜为人知的，神秘的“不兼容”过程， 可以潜在地决定近亲繁殖的程度 人口 这些知识将丰富任何试图 了解植物生殖系统的功能和进化 系统，并可在农业植物中具有实际效用 育种，特别是在生产用于杂交的近交系中 种子生产

Flowering plants have been classified as self-incompatible if they do not set seed following self-pollination, and self- compatible if they do. Recent work shows that this fundamental distinction is oversimplified. Some plants, including the glacier lily, can produce selfed seeds if only self pollen is applied to the stigma, but will preferentially produce outcrossed seeds from a mixture of self and outcross pollen. The proposed research uses genetic markers, pollen-color markers, and DNA- staining fluorescent pollen-nucleus markers. Novel techniques for transplanting styles and for determining the genetics of aborted seeds will be combined with the markers to isolate the post-pollination stage(s) at which preferential ourcrossing is expressed following mixed pollinations. The possible role of inbreeding effects will receive special attention. The result should constitute the most complete investigation to date of a little known, cryptic "incompatibility" process that can potentially determine the level of inbreeding in a population. Such knowledge will enrich any attempts to understand the function and evolution of plant reproductive systems, and may have practical utility in agricultural plant breeding, especially in the production of inbred lines for hybrid seed production.