A DNA barcode-based survey of terrestrial arthropods in the Society Islands of French Polynesia: host diversity within the SymbioCode Project
A DNA barcode-based survey of terrestrial arthropods in the Society Islands of French Polynesia: host diversity within the SymbioCode Project
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DOI：
10.5852/ejt.2017.272
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发表时间：
2017-02-07
影响因子：
1.2
通讯作者：
Charlat, Sylvain
中科院分区：
文献类型：
--
作者：
Ramage, Thibault;Martins-Simoes, Patricia;Charlat, Sylvain
我们在这里报告的分类和分子多样性的10 929陆生节肢动物标本，收集在四个岛屿的社会群岛，法属波利尼西亚。这项调查是“SymbioCode项目”的一部分，该项目旨在将社会群岛建立为一个自然实验室，在其中调查细菌共生体的通量（例如，沃尔巴克氏体）和其他遗传物质之间的分支节肢动物树。样本包括估计1127种，其中1098种包括至少一个DNA条形码标本，29种仅使用形态特征鉴定到物种水平。基于分子数据的物种计数强调，一些群体在这一地区研究不足，值得更集中的分类努力，特别是双翅目，鳞翅目和Hyattera。一些分类群，也受到形态审查揭示了DNA和形态为基础的物种边界之间的一致匹配的情况下，在90%，与大于预期的遗传多样性在其余的10%。该样本中的许多物种是该地区的新物种或未描述的物种。有些正在描述中，但许多正在等待有动机的专家的检查，他们可以使用在线图像或请求访问乙醇储存的标本。
We report here on the taxonomic and molecular diversity of 10 929 terrestrial arthropod specimens, collected on four islands of the Society Archipelago, French Polynesia. The survey was part of the 'SymbioCode Project' that aims to establish the Society Islands as a natural laboratory in which to investigate the flux of bacterial symbionts (e.g., Wolbachia) and other genetic material among branches of the arthropod tree. The sample includes an estimated 1127 species, of which 1098 included at least one DNA-barcoded specimen and 29 were identified to species level using morphological traits only. Species counts based on molecular data emphasize that some groups have been understudied in this region and deserve more focused taxonomic effort, notably Diptera, Lepidoptera and Hymenoptera. Some taxa that were also subjected to morphological scrutiny reveal a consistent match between DNA and morphology-based species boundaries in 90% of the cases, with a larger than expected genetic diversity in the remaining 10%. Many species from this sample are new to this region or are undescribed. Some are under description, but many await inspection by motivated experts, who can use the online images or request access to ethanol-stored specimens.