摘要： DNA甲基化是真核生物表观遗传的重要修饰方式之一,该文概述了真核生物DNA甲基化的修饰原理以及现阶段DNA甲基化的检测方法和技术手段,进一步对DNA甲基化修饰模式和参与基因表达调控的研究现状进行了阐释。目前,DNA甲基化的研究是畜禽经济性状研究领域的热点之一,猪肌肉发育、羊体尺性状以及奶牛乳房炎等研究获得了多个DNA甲基化标记。此外,DNA甲基化与肉牛发育和脂肪沉积相关研究定位和筛选了大量的候选甲基化修饰区域,这些研究结果为肉牛分子遗传研究奠定了基础,也为肉牛生物育种提供了表观遗传学候选标记。
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