Nok Ting Lam, Vladislav Ivanov, Leonardo Dapporto, Roger Vila, Marko Mutanen, Vlad Dincă
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引用次数: 0
Abstract
A good knowledge of the evolutionary history of organisms and an accurate taxonomic framework are keys for efficient biodiversity conservation measures. This is particularly relevant for European butterflies, which are often used as bioindicator organisms and umbrella species for conservation.The Holarctic butterfly genus Agriades includes seven European arctic‐alpine species of which several have a debated taxonomic status. They are localized and allopatric, and at least two of them are of high conservation concern, namely A. aquilo (in Europe, restricted to northern Scandinavia) and A. zullichi (endemic to southern Spain). Despite high conservation value and taxonomic uncertainty, molecular studies on these taxa are limited to DNA barcodes.We investigated the evolutionary history and species delimitation of West Palearctic Agriades using double‐digest RAD sequencing (ddRADseq).Various analyses using genomic data suggested the presence of one species in the glandon species group and one or two in the pyrenaicus species group. The differentiation within the former group (i.e., glandon, aquilo, zullichi) appears to be relatively recent, although the main allopatric populations represent evolutionary significant units (ESUs). Notable geographic structure was found within the pyrenaicus species group, with four allopatric ESUs detected.Wolbachia screening highlighted the presence of several allele combinations, some associated with particular Agriades populations.Genomic data revealed the evolutionary trajectory of European Agriades and a tendency for taxonomic oversplitting within this genus. These findings aid conservation by providing genetic background for region or population prioritization (including ESUs), and for the management of potential population reinforcement or reintroductions.
对生物进化历史的充分了解和准确的分类框架是高效生物多样性保护措施的关键。这一点对欧洲蝴蝶尤为重要,因为欧洲蝴蝶通常被用作生物指示生物和保护伞物种。全北区蝴蝶属包括七个欧洲北极-高山物种,其中几个物种的分类地位尚有争议。它们是本地化和异地分布的,其中至少有两个物种具有很高的保护价值,即 A. aquilo(在欧洲,仅限于斯堪的纳维亚半岛北部)和 A. zullichi(西班牙南部特有)。尽管这些类群具有很高的保护价值且分类不确定,但对它们的分子研究仅限于 DNA 条形码。我们利用双位 RAD 测序(ddRADseq)研究了西古北界 Agriades 的进化史和物种划分。利用基因组数据进行的各种分析表明,glandon种群中有一个物种,pyrenaicus种群中有一个或两个物种。尽管主要的同域种群代表了重要的进化单元(ESUs),但前一物种组(即:glandon、aquilo、zullichi)的分化似乎相对较晚。在pyrenaicus物种组中发现了明显的地理结构,发现了四个同域ESU。沃尔巴克氏体筛选突出显示了几个等位基因组合的存在,其中一些与特定的 Agriades 种群有关。基因组数据揭示了欧洲 Agriades 的进化轨迹以及该属内分类过度分裂的趋势。这些发现为确定区域或种群(包括 ESUs)的优先次序以及管理潜在的种群强化或重新引入提供了遗传背景,从而有助于保护工作。
期刊介绍:
To publish papers of the highest scientific quality within the general area of insect (and other arthropods) conservation and diversity covering topics ranging from ecological theory to practical management.
Papers are invited on the following topics: Conservation genetics; Extinction debt; Long-term conservation planning and implementation; Global implications of local or national conservation actions; Management responses of species and communities; Captive breeding programs; Comparisons of restored and natural habitats; Biogeography; Global biodiversity; Metapopulation dynamics; Climate change: impacts on distributions and range; Invasive species: impacts and control; Effects of pollution; Genetic threats to diversity by introgression; Effects of fragmentation on diversity and distribution; Impact of agricultural and forestry practices on biodiversity; Enhancing urban environments for diversity and protection; Biodiversity action plans: can we scale up from insects?; Effectiveness and choice of indicator species; Soil biodiversity and interactions with above-ground biodiversity; Ecological interactions at local levels; Ecological and evolutionary factors influencing diversity and local, regional and global scales; Sustainable livelihoods and training on the ground; Integrating science and policy.