由于未确定的物种多样性、特定属的条形码缺口和数据库错误,DNA 条形码无法充分识别欧洲野生蜜蜂(膜翅目,Anthophila)。

IF 5.5 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Molecular Ecology Resources Pub Date : 2024-03-25 DOI:10.1111/1755-0998.13953
Šet Janko, Šturm Rok, Koderman Blaž, Bevk Danilo, Gogala Andrej, Kutnjak Denis, Čandek Klemen, Gregorič Matjaž
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引用次数: 0

摘要

最近昆虫数量的减少,尤其是野生传粉昆虫种群的减少,对许多自然和农业生态系统构成了威胁。传统的物种监测依赖于形态特征鉴定,不足以进行高效和标准化的调查。DNA 条形码已成为生物分子鉴定的标准方法,旨在克服传统生物多样性监测的不足。然而,其有效性取决于参考数据库的完整性。许多欧洲国家(几乎完全)缺乏大规模的DNA条形码工作,这种零散的数据限制了对如何在野生蜜蜂鉴定中精确应用DNA条形码的全欧洲范围的分析。在此,我们将推进对欧洲野生蜜蜂的有效分子鉴定。我们在中欧和南欧交界处对野生蜜蜂进行了一次艰苦的调查,并对收集到的所有形态物种进行了DNA条形码编码。为了进行全球分析,我们用所有相关的欧洲物种对 DNA 条形码数据集进行了补充,并对物种划界、一般和属特异性条形码差距进行了全球分析,还检查了 DNA 数据库中的错误率。我们发现:(i) 斯洛文尼亚有六分之一的标本无法得到可靠的鉴定;(ii) 物种划分方法存在大量系统性差异;(iii) 所有蜜蜂不存在普遍的条形码缺口;(iv) 条形码缺口是针对具体属的,但仅限于在对 DNA 数据库中的错误进行整理之后。需要在代表性不足的地区加强采样和条形码工作,并严格管理 DNA 条形码库,以加强 DNA 条形码在野生蜜蜂鉴定中的应用。
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DNA barcoding insufficiently identifies European wild bees (Hymenoptera, Anthophila) due to undefined species diversity, genus-specific barcoding gaps and database errors

Recent declines in insect abundances, especially populations of wild pollinators, pose a threat to many natural and agricultural ecosystems. Traditional species monitoring relies on morphological character identification and is inadequate for efficient and standardized surveys. DNA barcoding has become a standard approach for molecular identification of organisms, aiming to overcome the shortcomings of traditional biodiversity monitoring. However, its efficacy depends on the completeness of reference databases. Large DNA barcoding efforts are (almost entirely) lacking in many European countries and such patchy data limit Europe-wide analyses of precisely how to apply DNA barcoding in wild bee identification. Here, we advance towards an effective molecular identification of European wild bees. We conducted a high-effort survey of wild bees at the junction of central and southern Europe and DNA barcoded all collected morphospecies. For global analyses, we complemented our DNA barcode dataset with all relevant European species and conducted global analyses of species delimitation, general and genus-specific barcoding gaps and examined the error rate in DNA data repositories. We found that (i) a sixth of all specimens from Slovenia could not be reliably identified, (ii) species delimitation methods show numerous systematic discrepancies, (iii) there is no general barcoding gap across all bees and (iv) the barcoding gap is genus specific, but only after curating for errors in DNA data repositories. Intense sampling and barcoding efforts in underrepresented regions and strict curation of DNA barcode repositories are needed to enhance the use of DNA barcoding for the identification of wild bees.

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来源期刊
Molecular Ecology Resources
Molecular Ecology Resources 生物-进化生物学
CiteScore
15.60
自引率
5.20%
发文量
170
审稿时长
3 months
期刊介绍: Molecular Ecology Resources promotes the creation of comprehensive resources for the scientific community, encompassing computer programs, statistical and molecular advancements, and a diverse array of molecular tools. Serving as a conduit for disseminating these resources, the journal targets a broad audience of researchers in the fields of evolution, ecology, and conservation. Articles in Molecular Ecology Resources are crafted to support investigations tackling significant questions within these disciplines. In addition to original resource articles, Molecular Ecology Resources features Reviews, Opinions, and Comments relevant to the field. The journal also periodically releases Special Issues focusing on resource development within specific areas.
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