破碎景观中濒危无脊椎甲虫 L. cervus 的遗传多样性和种群结构

IF 3.2 2区农林科学 Q1 ENTOMOLOGY

Insect Conservation and Diversity Pub Date : 2024-03-19 DOI:10.1111/icad.12732

Iwona Melosik, Anetta Lewandowska-Wosik, Urszula Sobczyńska, Mirosława Dabert, Mariusz Mleczak, Edward Baraniak

引用次数: 0

摘要

尽管脂腺甲虫物种对生态系统具有重要意义，但对锹形虫（Lucanus cervus）种群精细遗传学的研究仍然非常有限。由于其有限的扩散距离和栖息地破碎化，预计其种群的遗传结构较高，遗传多样性较低。为了评估栖息地破碎化对遗传多样性和结构的影响，我们研究了来自波兰西部三个地点的 150 个鹿甲虫标本：两个森林林地和一个位于橡树林荫道上的林地。我们利用 19 个微卫星 DNA 位点进行了研究。邻接分析和主坐标分析的结果、分化指数值（G'ST、D（Jost）和FST）以及稀有/私有等位基因频率表明，从树木地点采集的个体之间遗传分化较弱。通过 STRUCTURE（LOCPRIOR）、距离隔离测试和空间自相关分析，确定了遗传结构的空间成分。遗传多样性仍然相对较高（HE：0.49-0.51），未发现近亲繁殖现象，采样点个体间的平均亲缘关系也无显著差异。由于片段隔离时间较长、基因流动不受限制以及标记物/样本大小的限制，来自调查地点的鹿个体之间的遗传分化有限。两个地点之间的显著差异虽然微弱，但可能与环境差异和距离有关。遗传数据支持将森林中的个体作为单一管理单元。非侵入性取样足以满足基因研究的需要，但实现均衡取样对于精确估计濒危物种的历史人口分布至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Genetic diversity and population structure of the endangered saproxylic beetle L. cervus in a fragmented landscape

查看原文本刊更多论文

Genetic diversity and population structure of the endangered saproxylic beetle L. cervus in a fragmented landscape

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Insect Conservation and Diversity 生物-昆虫学

CiteScore

7.70

自引率

8.60%

发文量

审稿时长

>12 weeks

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.