Host population genetics and biogeography structure the microbiome of the sponge Cliona delitrix
Host population genetics and biogeography structure the microbiome of the sponge Cliona delitrix
复制标题
DOI：
10.1002/ece3.6033
复制
发表时间：
2020-01-24
影响因子：
2.6
通讯作者：
Lopez, Jose, V
中科院分区：
文献类型：
--
作者：
Easson, Cole G.;Chaves-Fonnegra, Andia;Lopez, Jose, V
海绵存在于不同的海洋生物群落中，并宿主内部微生物群落，可以提供关键的生态功能。虽然在海绵微生物组中一直观察到强烈的宿主特异性模式，但宿主与其共生微生物群落之间的精确生态关系仍有待充分阐明。在目前的研究中，我们调查的相对作用，宿主种群遗传学和地理学结构的微生物群落主持的挖掘海绵Cliona delitrix。共采集了53个用于划分群体遗传结构的样本。delitrix，从加勒比海的两个地点和横跨佛罗里达和巴哈马群岛的珊瑚礁的八个地点选择。利用基于Illumina的16 S rRNA V4区域的高通量测序测量微生物群落多样性和组成，并与宿主种群结构和地理分布相关。大多数特定于Cliona delitrix微生物组的操作分类单位（OTU）是罕见的，而其他OTU与同源宿主共享。在一个大的区域尺度上（>1,000 km），地理距离与海绵微生物组的相当大的变异性相关，表明了距离衰减关系，但在较小的空间尺度上影响不大（
Sponges occur across diverse marine biomes and host internal microbial communities that can provide critical ecological functions. While strong patterns of host specificity have been observed consistently in sponge microbiomes, the precise ecological relationships between hosts and their symbiotic microbial communities remain to be fully delineated. In the current study, we investigate the relative roles of host population genetics and biogeography in structuring the microbial communities hosted by the excavating sponge Cliona delitrix. A total of 53 samples, previously used to demarcate the population genetic structure of C. delitrix, were selected from two locations in the Caribbean Sea and from eight locations across the reefs of Florida and the Bahamas. Microbial community diversity and composition were measured using Illumina-based high-throughput sequencing of the 16S rRNA V4 region and related to host population structure and geographic distribution. Most operational taxonomic units (OTUs) specific to Cliona delitrix microbiomes were rare, while other OTUs were shared with congeneric hosts. Across a large regional scale (>1,000 km), geographic distance was associated with considerable variability of the sponge microbiome, suggesting a distance-decay relationship, but little impact over smaller spatial scales (