水样环境DNA元编码作为监测伊比利亚淡水鱼类组成的工具
Andrea Corral-Lou1,2, Ignacio Doadrio1
1Biodiversity and Evolutionary Biology Department, Museo Nacional de Ciencias Naturales, CSIC, José Gutiérrez Abascal, Madrid, Spain.
PloS one
|October 30, 2023
概括
环境DNA (eDNA) 元编码有效监测伊比利亚淡水鱼类,检测到比传统方法更多的物种. 这种非侵入性技术通过识别罕见或侵入性物种,有助于保护.
科学领域:
- 保护生物学 保护生物学
- 分子生态学分子生态学
- 鱼类学 鱼类学 鱼类学
背景情况:
- 环境DNA (eDNA) 元编码是生物多样性评估的一个越来越重要的工具.
- 伊比利亚淡水鱼是西班牙极度危的脊椎动物群体.
- 有效的监测对于保护这些脆弱物种至关重要.
研究的目的:
- 评估eDNA元编码对评估伊比利亚淡水鱼群的有效性.
- 将eDNA元编码结果与传统的电捕鱼方法进行比较.
- 评估线粒体12S rRNA基因 (12S) 作为eDNA研究标记物的适用性.
主要方法:
- 在西班牙杜埃罗流域的12个地点采样,使用电捕鱼和河流水的eDNA元编码.
- 使用线粒体12S rRNA基因 (12S) 作为遗传标记.
- 将eDNA数据与电调查 (当前和过去) 的比较.
主要成果:
- 12S片段显示了25种伊比利亚鱼类的足够分类分辨率.
- 与大多数情况下的电捕鱼相比,eDNA元编码检测到的物种数量更多.
- 在Achondrostoma arcasii的组织样本中观察到人口水平上的差异.
结论:
- eDNA元编码是一种强大的,非侵入性的工具,用于监测伊比利亚淡水鱼类的多样性.
- 准确的eDNA研究需要12S基因的本地遗传数据库.
- 电子DNA元编码的高灵敏度有助于检测稀有,入侵或下降的鱼群,以保护它们.
更多相关视频
相关概念视频
01:14Testing Water Quality
117
When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...
117
01:19Quality of Water
103
In concrete preparation, the quality of water is paramount as it affects the strength and durability of the concrete. Potable water is usually preferred; however, it must not have excessive sodium or potassium to prevent compromising the concrete's integrity. Water quality is typically evaluated based on impurities such as dissolved solids, chlorides, and sulfates, and its pH value is ideally between 6 and 8. Even slightly acidic natural water may be acceptable unless it contains harmful...
103