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报告了临灭绝的红木的完整的叶绿体基因组,有助于理解杂交和遗传学关系

Bibek Adhikari¹, Sanam Parajuli¹, Madhav P Nepal²

¹Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA.

Scientific reports

|April 18, 2025

概括

红色木 (Morus rubra) 叶绿体基因组被测序,显示它比白色木 (Morus alba) 更大. 遗传学分析澄清了Morus物种的进化和杂交,这对于保护本地红木至关重要.

科学领域:

植物基因组学植物基因组学
进化生物学是进化的生物学.
保护遗传学保护遗传学

背景情况:

侵袭性杂交威胁着原生红木 (Morus rubra) 的入侵性白木 (Morus alba).
了解Morus物种的遗传完整性和进化历史对于保护工作至关重要.

研究的目的:

测序,组装,并注释Morus rubra.的完整的叶绿体基因组.
进行Morus物种的遗传学分析,以了解进化历史和杂交事件.

主要方法:

来自美国八个州的45棵Morus树的叶绿体基因组测序.
对12个Morus物种的DNA序列多态性分析和族系学分析.
使用分子时钟方法估计分离时间.

主要成果:

红树的叶绿体基因组 (159,396159,423 bp) 含有128个基因,比白树更大.
在Morus rubra中确定了12个单元类型,以及在Morus物种中具有高DNA多态度的特定区域.
遗传学分析揭示了亚洲,北美,南美和非洲Morus的不同类型,支持单基.
差异时间分析估计Morus最近的共同祖先是在3867万年前.

结论:

提供了关于 Morus rubra 叶绿细胞基因组结构的基础数据.
提供了对Morus属的进化历史和多样化的见解.
有助于开发分子标记物,用于研究种群遗传学和内进性杂交.

关键词:

莫鲁斯的原始语言.莫鲁斯·鲁布拉 (Morus rubra) 是一个古老的植物.叶绿体基因组测序叶绿体基因组测序桑的分歧时间.危物种危物种危物种桑的遗传学桑的遗传学

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