000162886 001__ 162886
000162886 005__ 20251017144600.0
000162886 0247_ $$2doi$$a10.1016/j.avrs.2025.100279
000162886 0248_ $$2sideral$$a145418
000162886 037__ $$aART-2025-145418
000162886 041__ $$aeng
000162886 100__ $$aRestrepo-Arias, Marcela
000162886 245__ $$aPatterns of genetic diversity in five species of Passeriformes co-distributed in an environmental gradient
000162886 260__ $$c2025
000162886 5060_ $$aAccess copy available to the general public$$fUnrestricted
000162886 5203_ $$aUnderstanding the evolutionary processes that influence the distribution of genetic diversity in natural populations is a key issue in evolutionary biology. Both species' distribution ranges and environmental gradients can influence this diversity through mechanisms such as gene flow, selection, and genetic drift. To explore how these forces interact, we assessed neutral and adaptive genetic variation in three widely distributed and two narrowly distributed bird species co-occurring along the Cauca River canyon in Antioquia, Colombia—a region of pronounced environmental heterogeneity. We sampled individuals across eight sites spanning the canyon's gradient and analyzed genetic diversity and structure using microsatellites and toll-like receptors (TLRs), a gene family involved in innate immunity. Widely distributed species consistently exhibited higher genetic diversity at both marker types compared to their narrowly distributed counterparts. Although we did not find a significant relationship between microsatellite heterozygosity and TLR heterozygosity, we evidenced a negative trend for widely distributed species and a positive trend for narrowly distributed species. This result suggests that there is a stronger effect of genetic drift in narrowly distributed species. Our results highlight the role of distribution range in maintaining genetic diversity and suggest that environmental gradients, by interacting with gene flow and selection, may influence patterns of adaptive variation.
000162886 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000162886 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000162886 700__ $$aRivera-Gutiérrez, Héctor F.
000162886 700__ $$aSoto-Calderón, Iván Darío
000162886 700__ $$0(orcid)0000-0002-8731-1009$$aPérez-Collazos, Ernesto$$uUniversidad de Zaragoza
000162886 700__ $$aGonzález-Quevedo, Catalina
000162886 7102_ $$15011$$2063$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cÁrea Botánica
000162886 773__ $$g16, 3 (2025), 100279$$pAvian Res.$$tAvian Research$$x2053-7166
000162886 8564_ $$s3738770$$uhttps://zaguan.unizar.es/record/162886/files/texto_completo.pdf$$yVersión publicada
000162886 8564_ $$s2622926$$uhttps://zaguan.unizar.es/record/162886/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000162886 909CO $$ooai:zaguan.unizar.es:162886$$particulos$$pdriver
000162886 951__ $$a2025-10-17-14:13:57
000162886 980__ $$aARTICLE