在极度危的亚洲树中,范围广泛的差异性适应和基因组偏移.
Tin Hang Hung1, Thea So2, Bansa Thammavong3
1Department of Biology, University of Oxford, Oxford OX1 3RB, United Kingdom.
概括
树面临来自非法贸易和气候变化的遗传风险. 基因组分析揭示了对于保护这些宝贵的热带树木至关重要的特定物种适应策略.
科学领域:
- 生态生态学 生态生态学
- 基因组学就是基因组学.
- 保护生物学 保护生物学
背景情况:
- 树是全球贩运最多的野生产品,大公河次区域的 * Dalbergia cochinchinensis * 和 * Dalbergia oliveri * 非常受欢迎.
- 这些物种面临着严重的遗传风险,因为过度开发和对它们的适应能力的理解有限,阻碍了保护工作.
研究的目的:
- 呈现基因组组合并进行范围广泛的基因组扫描,以寻找D. cochinchinensis*和D. oliveri*的适应变异.
- 为了预测这些树物种的气候变化的基因组偏移.
- 为特定物种的保护战略和恢复工作提供信息.
主要方法:
- 基因组组装和测序. 基因组组装和测序.
- 范围广泛的基因组扫描用于适应变异.
- 在各种气候变化场景下基因组偏移预测.
- 开发种子源匹配的 *seedeR* 应用程序.
主要成果:
- 适应性基因组变异与温度和降水差异相关,反映了开拓能力和耐旱能力的差异.
- 基因组偏移预计会随着气候变化而增加,D. cochinchinensis的增长速度比D. oliveri*更快.
- 鉴定出了明显的基因与环境的关联,特别是在越南东部沿海地区.
结论:
- 建议采取特定物种的保护行动:对 *D. cochinchinensis* 进行广泛的生殖质表现,并针对 *D. oliveri* 进行基因组偏移热点的有针对性的保护.
- 开发的基因组模型和*seedeR*应用程序可以快速为恢复计划提供信息.
- 这项生态基因组研究提供了关于保护全球热带树木免受气候变化影响的见解.
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