Multi-scale and multi-site resampling of a study area in spatial genetics: implications for flying insect species

PeerJ

article

Julien M. Haran¹  Jean-Pierre Rossi²  Juan Pajares³  Luis Bonifacio⁴  Pedro Naves⁴  Alain Roques¹  Géraldine Roux¹ 

[1] UR633 Zoologie Forestière;CBGP;Sustainable Forest Management Res Inst, Universidad de Valladolid;Instituto Nacional de Investigacao Agraria e Veterinaria

关键词: Gene flow;    Insect dispersal;    Landscape genetics;    Iberian peninsula;    Monochamus galloprovincialis;   

DOI  :  10.7717/peerj.4135

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

The use of multiple sampling areas in landscape genetic analysis has been recognized as a useful way of generalizing the patterns of environmental effects on organism gene flow. It reduces the variability in inference which can be substantially affected by the scale of the study area and its geographic location. However, empirical landscape genetic studies rarely consider multiple sampling areas due to the sampling effort required. In this study, we explored the effects of environmental features on the gene flow of a flying long-horned beetle (Monochamus galloprovincialis) using a landscape genetics approach. To account for the unknown scale of gene flow and the multiple local confounding effects of evolutionary history and landscape changes on inference, we developed a way of resampling study areas on multiple scales and in multiple locations (sliding windows) in a single large-scale sampling design. Landscape analyses were conducted in 3*104 study areas ranging in scale from 220 to 1,000 km and spread over 132 locations on the Iberian Peninsula. The resampling approach made it possible to identify the features affecting the gene flow of this species but also showed high variability in inference among the scales and the locations tested, independent of the variation in environmental features. This method provides an opportunity to explore the effects of environmental features on organism gene flow on the whole and reach conclusions about general landscape effects on their dispersal, while limiting the sampling effort to a reasonable level.

【 授权许可】

CC BY