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克里斯普拉尔:用于评估Ralstonia solanacearum物种复杂中的CRISPR防御系统的网络数据库,以避免菌体的抗性

Cristofer Motoche-Monar¹, Diego Andrade², Washington D Pijal²

¹Phage Therapy Group, School of Biological Sciences and Engineering, Yachay Tech University, Hcda San José y Proyecto Yachay, 100115, Imbabura, Ecuador.

|March 1, 2024

概括

集群定期间隔的短平行体重复 (CRISPR) 系统是细菌的防御机制. 这项研究选了Ralstonia solanacearum物种复杂菌株中的CRISPR存在,揭示了多样化的分布,并确定了潜在的菌体治疗的特定菌体标.

科学领域:

微生物学微生物学
基因组学就是基因组学.
生物信息学是一种生物信息学.

背景情况:

聚类定期间隔的短平行列重复 (CRISPR) 和与CRISPR相关的 (Cas) 蛋白质在细菌和古生物中提供了对菌体等外来遗传元素的适应性免疫力.
在Ralstonia solanacearum物种复合体 (RSSC) 中,CRISPR-Cas系统的流行率和功能作用,是一组植物病原细菌,尚不清楚.
了解RSSC中CRISPR介导的免疫力对于破译宿主-病原体相互作用和开发新型控制策略至关重要.

研究的目的:

在大量Ralstonia solanacearum物种复合体 (RSSC) 基因组中对CRISPR位点进行全面的选.
为了确定在RSSC菌株内被识别的CRISPR阵列所准的特定菌体.
开发一个公开可访问的数据库和生物信息学工具,用于分析CRISPR-Cas系统及其与RSSC中的菌体相互作用.

主要方法:

对378个RSSC菌株进行全基因组分析,以检测CRISPR阵列的存在和位置.
在已识别的CRISPR数组内,生物信息识别的菌体原间隔器序列与细菌间隔器相匹配.
开发CRISPRals网络可访问数据库和用于CRISPR-Cas系统分析和菌体与细菌相互作用映射的相关工具.

主要成果:

在R. solanacearum的20.1%,R. pseudosolanacearum的14.3%和R. syzygii菌株的54.5%中检测到CRISPR位点.
总共有252个不同的菌体感染RSSC菌株通过间隔器-原间隔器匹配被确定.
建立了CRISPRals数据库,其中包括用于CRISPR检测,Cas基因识别和间隔器-原间隔器匹配的工具.

结论:

在RSSC中,CRISPR-Cas系统的分布在不同物种之间有很大的差异.
克里斯普拉斯为研究RSSC内的细菌菌体相互作用提供了宝贵的资源,并有助于识别菌体目标.
提出的研究结果和工具可以促进对RSSC病原体更有效的菌体治疗策略的设计.

关键词:

克里斯普尔是什么意思?克里斯普尔是什么意思?在Ralstonia solanacearum物种综合体中.菌体疗法是一种菌体疗法.植物疾病控制植物疾病控制

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