并非所有"杂交"都重要:为了更深入地了解Schistosoma物种杂交的细微差别
Bonnie Webster1, Tine Huyse2,3
1Science, Natural History Museum, London, England, UK.
概括
报道说,在非洲,杂交石瘤的病例正在增加,但有证据表明,这种增加反映了更好的检测,不一定是新的威胁. 谨慎,以证据为基础的反应至关重要,以避免误导对寄生虫控制的资源.
科学领域:
- 寄生虫学的寄生虫学
- 进化生物学 进化生物学
- 公共卫生 公共卫生
背景情况:
- 越来越多的关于非洲Schistosoma物种杂交的报道引发了人们对疾病传播,动物传播和控制挑战的担忧.
- 目前对"杂交"分裂体的解释经常将其列为新兴威胁,但支持证据往往有限.
研究的目的:
- 批判性地评估围绕Schistosoma杂交的当前话语中的假设和局限性.
- 区分过渡性杂交,死结相互作用和内进,评估它们不同的生物和流行病学意义.
主要方法:
- 关于schistosoma杂交的实验,现场和基因组研究的审查和综合.
- 分析先进的基因组数据,以解释混合报告中的趋势.
- 制定一个框架,以区分进化问题与公共卫生优先事项.
主要成果:
- 先进的基因组分析表明,由于扩大了分子监测,而不是一定是生物的出现,因此,杂交瘤报告的感知增加可能是由于扩大了分子监测.
- 许多混合形式在历史上可能已经存在,但以前没有被发现.
- 缺乏基线和纵向数据阻碍了对杂交的时间趋势的评估.
结论:
- 加强对瘤的监测是合理的,但应避免过度反应和实施不合理的控制措施.
- 政策和资金决策必须相称,基于证据,优先考虑现有方法有效的干预措施.
- 提出了一个情境敏感的框架,以指导资源分配到可操作的公共卫生重点,而不是仅仅是基本的进化研究.
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