通过在新热带洪水平原湖中进行的metabarcoding揭示了真核和原核微生物群的多样性
Cíntia P Targueta1, Adriana M Antunes2, Karine B Machado3
1Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Ciências Biológicas, Avenida Esperança, s/n, Campus Samambaia, 74690-900 Goiânia, GO, Brazil.
Anais da Academia Brasileira de Ciencias
|August 16, 2023
概括
巴西的浮游生物微生物群落.
科学领域:
- 淡水生态学 淡水生态学
- 微生物生态学 微生物生态学
- 分子生物学分子生物学
背景情况:
- 微生物群的表征对于了解水生生态系统至关重要.
- 热带淡水系统,比如巴西的阿拉瓜亚河,拥有显著的生物多样性.
- 评估真核生物和 prokaryotic 多样性提供了一个全面的生态观点.
研究的目的:
- 为了分析阿拉瓜亚河泛滥平原湖泊中的浮游生物原生生物和真核生物的多样性.
- 评估这些湖泊中微生物群落的空间一致性.
- 通过使用DNA测序,提高热带生物多样性热点中的微生物群库存.
主要方法:
- 从8个洪平湖收集了水样.
- 对16S (原核生物) 和18S (真核生物) rRNA基因进行了元编码分析.
- 使用Illumina MiSeq进行了测序,随后进行了操作分类单元 (OTU) 划分和分类分类.
主要成果:
- 超过34,000个真核细胞阅读产生了225个OTU (106个被分类).
- 超过26,000个 prokaryotic 序列产生了351个 OTU (231个被分类).
- 主导的真核生物包括Ciliophora,Chlorophyta和Charophyta; 主导的原核生物是Proteobacteria,Actinobacteria和Bacteroidetes.
- 研究湖泊的微生物群之间没有发现空间一致.
结论:
- 阿拉瓜亚河拥有多样化的真核生物和原核生物群落.
- 研究的湖泊中的微生物群落没有显示出空间相似性.
- 在热带地区对淡水生物多样性进行分类,DNA测序至关重要.
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