ArticleSystematic biology2012
Pleistocene speciation in the genus Populus (salicaceae).
Article in Systematic biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 105 citations in OpenAlex.
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- The role of cytonuclear interactions to plant adaptation across aProceedings. Biological sciences · 2025Article
- Multilocus analysis uncovers the evolution of the Rhodniini tribe, vectors of Trypanosoma cruzi.Scientific reports · 2025Article
- Analysis of the population genetic structure and demographic history ofFrontiers in plant science · 2025Article
- Comparative bioacoustics of multiple eastern versus western songbird pairs in North America reveals a gradient of song divergence.PloS one · 2024Article
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- Spatial distribution ofHeliyon · 2020Article
- Genotyping-by-sequencing and ecological niche modeling illuminate phylogeography, admixture, and Pleistocene range dynamics in quaking aspen (Ecology and evolution · 2020Article
- Nunataks or massif de refuge? A phylogeographic study of Rhodiola crenulata (Crassulaceae) on the world's highest sky islands.BMC evolutionary biology · 2018Article
- Strong population bottleneck and repeated demographic expansions of Populus adenopoda (Salicaceae) in subtropical China.Annals of botany · 2018Article
- Climatic and Soil Factors Shape the Demographical History and Genetic Diversity of a Deciduous Oak (Frontiers in plant science · 2018Article
- Interspecific Divergence of TwoFrontiers in plant science · 2018Article
- Sexual homomorphism in dioecious trees: extensive tests fail to detect sexual dimorphism in PopulusScientific reports · 2017Article
- Article
- Rapid and recent diversification patterns in Anseriformes birds: Inferred from molecular phylogeny and diversification analyses.PloS one · 2017Article
- Species Delimitation and Lineage Separation History of a Species Complex of Aspens in China.Frontiers in plant science · 2017Article
- Terrestrial mountain islands and Pleistocene climate fluctuations as motors for speciation: A case study on the genus Pseudovelia (Hemiptera: Veliidae).Scientific reports · 2016Article
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
Abstract
The macroevolutionary consequences of recent climate change remain controversial, and there is little paleobotanical or morphological evidence that Pleistocene (1.8-0.12 Ma) glacial cycles acted as drivers of speciation, especially among lineages with long generation times, such as trees. We combined genetic and ecogeographic data from 2 closely related North American tree species, Populus balsamifera and P. trichocarpa (Salicacaeae), to determine if their divergence coincided with and was possibly caused by Pleistocene climatic events. We analyzed 32 nuclear loci from individuals of P. balsamifera and P. trichocarpa to produce coalescent-based estimates of the divergence time between the 2 species. We coupled the coalescent analyses with paleodistribution models to assess the influence of climate change on species' range. Furthermore, measures of niche overlap were used to investigate patterns of ecological differentiation between species. We estimated the divergence date of P. balsamifera and P. trichocarpa at approximately 75 Ka, which corresponds closely with the onset of Marine Isotope Stage 4 (∼76 Ka) and a rapid increase in global ice volume. Significance tests of niche overlap, in conjunction with genetic estimates of migration, suggested that speciation occurred in allopatry, possibly resulting from the environmental effects of Pleistocene glacial cycles. Our results indicate that the divergence of keystone tree species, which have shaped community diversity in northern North American ecosystems, was recent and may have been a consequence of Pleistocene-era glaciation and climate change.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.