Coral metagenome: bacterial associates of corals

Bacterial 16s rDNA sequencing of different tissues from the coral Acropora granulosa, from the National Center for Biotechnology Information (NCBI) BioProject number PRJNA233450. Submitted by James Cook University.Data type: Random survey.Abstract [Related Publication]: Despite being one of the simplest metazoans, corals harbor some of the most highly diverse and abundant microbial communities. Differentiating core, symbiotic bacteria from this diverse host-associated consortium is essential for characterizing the functional contributions of bacteria but has not been possible yet. Here we characterize the coral core microbiome and demonstrate clear phylogenetic and functional divisions between the micro-scale, niche habitats within the coral host. In doing so, we discover seven distinct bacterial phylotypes that are universal to the core microbiome of coral species, separated by thousands of kilometres of oceans. The two most abundant phylotypes are co-localized specifically with the corals' endosymbiotic algae and symbiont-containing host cells. These bacterial symbioses likely facilitate the success of the dinoflagellate endosymbiosis with corals in diverse environmental regimes.The full methodology is available in the Open Access publication from the Related Publications link below.

本数据集为来自颗粒轴孔珊瑚（Acropora granulosa）不同组织的细菌16S核糖体DNA（16S rDNA）测序数据，相关数据隶属于美国国家生物技术信息中心（National Center for Biotechnology Information, NCBI）的生物项目（BioProject）编号PRJNA233450，由詹姆斯·库克大学（James Cook University）提交。
数据类型：随机测序调查（Random survey）。
【相关文献摘要】
珊瑚虽为最简单的多细胞动物（metazoan）类群之一，却拥有全球多样性与丰度最为突出的微生物群落之一。从该复杂的宿主共生菌群中区分出核心共生细菌，是解析细菌功能贡献的核心前提，但此前尚未达成这一目标。本研究对珊瑚核心微生物组（microbiome）进行了系统表征，明确了珊瑚宿主内微尺度生态位生境之间的系统发育与功能分化。借此，本研究发现了7种独特的细菌系统型（phylotype），它们广泛存在于跨数千公里海洋分布的珊瑚物种核心微生物组中。其中丰度最高的两种系统型，特异性定位于珊瑚的内共生藻类（endosymbiotic algae）以及携带共生体的宿主细胞内。这类细菌共生作用或可助力虫黄藻（dinoflagellate）与珊瑚在多样环境条件下建立稳定成功的内共生关系。完整的实验方法可通过下方相关文献链接的开放获取出版物获取。