玉米基因组测序通过甲基化过
Lance E Palmer1, Pablo D Rabinowicz, Andrew L O'Shaughnessy
1Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY 11724, USA.
Science (New York, N.Y.)
|December 20, 2003
概括
玉米序列的甲基过提供了比其他方法更完整的基因组. 这种方法有助于识别活跃的转子子和有机体基因组,以完成转录组.
科学领域:
- 植物基因组学 植物基因组学
- 分子生物学分子生物学
背景情况:
- 测序像玉米这样的大型,重复的基因组是具有挑战性的.
- 基因丰富策略提供了一个更有效的替代方案.
研究的目的:
- 评估甲基化过作为玉米的基因丰富策略.
- 将其有效性与其他测序方法进行比较.
主要方法:
- 产生和分析大约10万个低甲基化玉米序列.
- 与大米基因组进行比较分析.
主要成果:
- 与表达序列标签或转子子插入位相比,甲基化过产生了更全面的玉米基因表现.
- 大约7%的重复性DNA未甲基化并被选择.
- 确定了潜在活跃的转位子和非甲基化细胞器基因组.
结论:
- 甲基化过是玉米的有效基因丰富策略.
- 这种方法有助于识别特定的DNA元素,并通过逆转录聚合酶链反应帮助转录组完成.
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