城市景观中土壤节肢动物的遗传多样性和基因流动:河流、山脉和破碎化的作用

IF 3.2 2区农林科学 Q1 ENTOMOLOGY

Insect Conservation and Diversity Pub Date : 2023-08-16 DOI:10.1111/icad.12677

Tangjun Xu, Kexin Zhou, Wentao Ye, Yalin Huang, Yufeng Zhang, Sheng Zhu, Honghua Ruan, Hongyi Liu

引用次数: 0

摘要

土壤无脊椎动物是土壤生物多样性的重要组成部分，在土壤生态系统中发挥着重要作用。然而，城市景观对土壤节肢动物遗传多样性和基因流动的影响尚不清楚。本文利用线粒体Cytb基因和8个新的微卫星位点，研究了一个城市地区的多纹Scolopendra mutilans的遗传多样性和基因流。基于556个基因，共鉴定出22个单倍型和24个变异位点来自中国江苏省南京市5个群体的84个个体的bp Cytb序列。在穆兰节肢动物种群中发现的8个微卫星平均有5.63–8.00个等位基因，在城市景观中表现出较高的遗传多样性。自然生境大小与穆兰的遗传多样性之间没有相关性。基于微卫星的全球Fst值为0.115，这表明遗传分化和群体分离是中等的。穆兰的遗传结构可能会受到城市化的影响，因为城市斑块可能会阻碍种群之间的基因流动。城市中保留的生态走廊可能成为人口迁移的途径，从而增加基因流动。由于被河流隔开的种群之间存在着密切的关系，因此，穆兰的基因流动可能不会受到城市内自然屏障的阻碍。这些结果可能有助于保护穆兰的多样性，并阐明其对城市化的适应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Genetic diversity and gene flow of the soil arthropod (Scolopendra mutilans) in urban landscapes: The roles of rivers, mountains and fragmentation

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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.