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"遗传多样性分量比"
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白皮松交配系统及其种内遗传多样性分量比的研究
应用同工酶淀粉凝胶技术分析了白皮松天然群体的交配系统,结果表明白皮松天然群体的多位点异交率为0.451~0.522,在松属中处于较低水平,这与白皮松天然群体较低的杂合度和很弱的基因流结果吻合,进一步讨论了导致白皮松异交率低的原因。白皮松群体内家系间存在明显的遗传分化,其半同胞家系分化系数为0.322,高于群体间的遗传分化水平。群体/家系/子代个体三者间的遗传多样性分量比为DAP:DAF:DIF≈1:2:4。
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