POGO-DB
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A major aim of metagenomic studies is to identify and compare the phylogenetic composition of different samples. This task is usually accomplished by the use of marker genes that are globally conserved across prokaryotes, such as the 16S rRNA gene. Therefore, the choice of markers can greatly affect the results of studies, as different marker genes evolve at different rates and may represent better or worse the phylogenetic relationships of different prokaryotic lineages. Database of Pairwise-comparisons Of Genomes and universal Orthologous genes (POGO-DB) provides a tool for users to probe questions regarding how different aspects of genome variation relate to each other, and to choose marker genes that will better fit the aims of specific studies in a more informed way.
宏基因组学研究的核心目标之一,是识别并比较不同样本的系统发育组成。该任务通常依托在原核生物中全局保守的标记基因完成,例如16S核糖体RNA基因(16S rRNA gene)。因此,标记基因的选择会对研究结果产生显著影响,因不同标记基因的进化速率各异,且对不同原核生物谱系的系统发育关系的反映能力各有优劣。基因组与通用直系同源基因两两比对数据库(POGO-DB)为用户提供了专业分析工具,可用于探究基因组变异不同维度间的内在关联,并帮助用户以更具科学依据的方式,筛选出更契合特定研究目标的标记基因。




