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首页> 外文期刊>African Journal of Biotechnology >Inheritance of fresh seed dormancy in Spanish-type peanut (Arachis hypogaea L.): bias introduced by inadvertent selfed flowers as revealed by microsatellite markers control
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Inheritance of fresh seed dormancy in Spanish-type peanut (Arachis hypogaea L.): bias introduced by inadvertent selfed flowers as revealed by microsatellite markers control

机译：西班牙型花生（Arachis hypogaea L.）新鲜种子休眠的遗传：由无意自交花引起的偏见，如微卫星标记控制所揭示

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摘要

Production and seed quality in peanut (Arachis hypogaea?L.) can be reduced substantially by?in situ?germination under unpredictable rainfed environments. Inheritance of fresh seed dormancy in Spanish x Spanish crosses was studied with two sets of segregating populations, an F2?population derived from true F1?hybrids identified with peanut microsatellites markers and other populations (F2, BC1P1Sand BC1P2S) from randomly-selected F1?individuals. In the F2?population developed with true F1?hybrids, the chi square test was not significant for the deviation from the expected 3:1 (dormant: non-dormant) ratio. In addition, the bimodal frequency distribution curve with the F2?population gave more evidence that fresh seed dormancy is controlled by a single dominant gene. The average frequency (48%) of true F1?hybrids give evidence that deviations from expected ratios in the populations (F2?and BC1P1S) developed from non-tested F1?individuals, is most likely due to inadvertent selfs. This study emphasized the need to identify with molecular markers the cross progenies in self-pollinated crops as peanut before testing for any trait.
机译：在不可预知的雨育环境下进行原位发芽，可大大降低花生（花生）的产量和种子质量。研究了西班牙x西班牙杂交的新鲜种子休眠的遗传，研究了两组隔离种群，即由花生微卫星标记鉴定的真实F1杂种衍生的F2种群，以及随机选择的F1个人的其他种群（F2，BC1P1S和BC1P2S）。 。在具有真正的F1杂种的F2种群中，卡方检验对于偏离预期的3：1（休眠：非休眠）比率的差异不显着。此外，具有F2种群的双峰频率分布曲线提供了更多的证据，表明新鲜种子的休眠受单个显性基因控制。真正的F1杂种的平均频率（48％）提供了证据，表明与未经测试的F1个人发展出的群体（F2和BC1P1S）的预期比率的偏差很可能是由于自身的疏忽所致。这项研究强调需要在测试任何性状之前，用分子标记物鉴定自花授粉作物中的杂交后代为花生。

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