Files and links (2)
Published (Version of record)CC BY-NC V4.0, Open Access
Published (Version of record)CC BY-NC V4.0, Open
Journal article
Balancing selection of climate adaptive loci underlies the success of introduction of Eurasian Tree Sparrows
Science Advances, Vol.11(47), pp.1-12
19/11/2025
Metrics
12 Record Views
Abstract
Human-mediated introductions have enabled species to colonize beyond their native ranges, yet the mechanisms underlying successful establishment remain unclear. We combined genomic and ecological analyses to investigate parallel introductions of the Eurasian Tree Sparrow across continents. Our analyses of genetic structure and demography revealed that introduced populations in North America (European origin) and Australia (Chinese origin) experienced founder effects, with resulting bottlenecks, reduced genetic diversity, and increased inbreeding. Despite the genome-wide loss of diversity, we identified conserved regions of high genetic variation in the introduced populations, potentially maintained through balancing selection of ancestral polymorphisms. Genotype-climate association and genetic offset modeling demonstrated that climate-adaptive genetic variants retained similar frequencies across the native and introduced ranges, likely maintaining similar interactions of genetic components with climate niches. Our findings highlight how retention of adaptive polymorphism facilitates establishment success in the introduced populations, providing a framework for predicting invasion potential through genomic signatures of adaptation.
Details
- Title
- Balancing selection of climate adaptive loci underlies the success of introduction of Eurasian Tree Sparrows
- Creators
- Les Christidis - Southern Cross UniversityYilin Chen - Chinese Academy of SciencesShuai Zhang - Chinese Academy of SciencesWenqing Zang - Chinese Academy of SciencesPer G.P. Ericson - Swedish Museum of Natural HistorySantiago Claramunt - Royal Ontario MuseumLeo Joseph - NRCAWeiwei Zhai - Chinese Academy of SciencesFumin Lei - Chinese Academy of SciencesYanhua Qu - Swedish Museum of Natural History
- Publication Details
- Science Advances, Vol.11(47), pp.1-12
- Publisher
- American Association for the Advancement of Science; WASHINGTON
- Grant note
- National Natural Science Foundation of China: U23A20162, 32401393 Third Xinjiang Scientific Expedition and Research: 2022xjkk0205 Young Elite Scientists sponsorship program: 2023QNRC001 Postdoctoral Fellowship Program of CPSF: GZC20232646 Bingzhi Postdoctoral Fellowship Program of Institute of ZoologyChinese Academy of Sciences: 2023IOZ0104
This research was funded by the National Natural Science Foundation of China U23A20162 and 32401393 (to Y.Q. and Y.C.), Third Xinjiang Scientific Expedition and Research 2022xjkk0205 (to Y.Q.), Young Elite Scientists sponsorship program 2023QNRC001 (toY.C.), Postdoctoral Fellowship Program of CPSF GZC20232646 (to Y.C.), Bingzhi Postdoctoral Fellowship Program of Institute of Zoology (to Y.C.), and Chinese Academy of Sciences 2023IOZ0104 (to F.L. and Y.Q.).
- Identifiers
- 991013330227102368
- Copyright
- © 2025 The Authors, some rights reserved.
- Academic Unit
- Research Infrastructure and Operations
- Language
- English
- Resource Type
- Journal article