期刊
MOLECULAR ECOLOGY RESOURCES
卷 23, 期 7, 页码 1689-1705出版社
WILEY
DOI: 10.1111/1755-0998.13836
关键词
autonomous reef monitoring structures; COI; DNA metabarcoding; haplotype diversity; invertebrate; Mediterranean Sea
The ability to use DNA metabarcoding of bulk samples to gather genetic information directly from the environment is crucial for understanding biodiversity and population dynamics in the marine realm. In this study, we use bioinformatics tools to investigate intraspecific genetic variability for marine invertebrates in the Mediterranean Sea. By analyzing samples from Autonomous Reef Monitoring Structures (ARMS), we identify diverse haplotypes and emphasize the spatial scale of genetic variability.
The ability to gather genetic information using DNA metabarcoding of bulk samples obtained directly from the environment is crucial to determine biodiversity baselines and understand population dynamics in the marine realm. While DNA metabarcoding is effective in evaluating biodiversity at community level, genetic patterns within species are often concealed in metabarcoding studies and overlooked for marine invertebrates. In the present study, we implement recently developed bioinformatics tools to investigate intraspecific genetic variability for invertebrate taxa in the Mediterranean Sea. Using metabarcoding samples from Autonomous Reef Monitoring Structures (ARMS) deployed in three locations, we present haplotypes and diversity estimates for 145 unique species. While overall genetic diversity was low, we identified several species with high diversity records and potential cryptic lineages. Further, we emphasize the spatial scale of genetic variability, which was observed from locations to individual sampling units (ARMS). We carried out a population genetic analysis of several important yet understudied species, which highlights the current knowledge gap concerning intraspecific genetic patterns for the target taxa in the Mediterranean basin. Our approach considerably enhances biodiversity monitoring of charismatic and understudied Mediterranean species, which can be incorporated into ARMS surveys.
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