| Title: |
Recurrent hybridization and gene flow shaped Norway and Siberian spruce evolutionary history over multiple glacial cycles |
| Authors: |
Zhou, Qiujie; Karunarathne, Piyal; Andersson-Li, Lili; Chen, Chen; Opgenoorth, Lars; Heer, Katrin; Piotti, Andrea; Vendramin, Giovanni Giuseppe; Nakvasina, Elena; Lascoux, Martin; Milesi, Pascal |
| Publisher Information: |
Uppsala universitet, Växtekologi och evolution; Uppsala universitet, Science for Life Laboratory, SciLifeLab; Heinrich Heine Univ, Inst Populat Genet, Univ Str 1, Dusseldorf, Germany; Karolinska L2 02, Dept Microbiol Tumor & Cell Biol, Solna, Sweden.; Swiss Fed Inst Technol, Inst Integrat Biol, Plant Pathol Grp, CH-8092 Zurich, Switzerland.; Philipps Univ Marburg, Dept Biol Plant Ecol & Geobot, Marburg, Germany.;Swiss Fed Res Inst WSL, Birmensdorf, Switzerland.; Albert Ludwigs Univ Freiburg, Fac Environm & Nat Resources, Eva Mayr Stihl Professorship Forest Genet, Freiburg, Germany.; Natl Res Council CNR, Inst Biosci & BioResources IBBR, Sesto Fiorentino, Italy.; Northern Arctic Fed Univ MV Lomonosov, Dept Forestry & Forest Management, Arkhangelsk, Russia. |
| Publication Year: |
2024 |
| Collection: |
Uppsala University: Publications (DiVA) |
| Subject Terms: |
conifers; demographic inference; Eurasia; glacial cycles; recurrent hybridization; Evolutionary Biology; Evolutionsbiologi; Genetics and Genomics; Genetik och genomik |
| Description: |
Most tree species underwent cycles of contraction and expansion during the Quaternary. These cycles led to an ancient and complex genetic structure that has since been affected by extensive gene flow and by strong local adaptation. The extent to which hybridization played a role in this multi-layered genetic structure is important to be investigated. To study the effect of hybridization on the joint population genetic structure of two dominant species of the Eurasian boreal forest, Picea abies and P. obovata, we used targeted resequencing and obtained around 480 K nuclear SNPs and 87 chloroplast SNPs in 542 individuals sampled across most of their distribution ranges. Despite extensive gene flow and a clear pattern of Isolation-by-Distance, distinct genetic clusters emerged, indicating the presence of barriers and corridors to migration. Two cryptic refugia located in the large hybrid zone between the two species played a critical role in shaping their current distributions. The two species repeatedly hybridized during the Pleistocene and the direction of introgression depended on latitude. Our study suggests that hybridization helped both species to overcome main shifts in their distribution ranges during glacial cycles and highlights the importance of considering whole species complex instead of separate entities to retrieve complex demographic histories. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
Molecular Ecology, 0962-1083, 2024, 33:17; PMID 39148357; ISI:001291190100001 |
| DOI: |
10.1111/mec.17495 |
| Availability: |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-541970; https://doi.org/10.1111/mec.17495 |
| Rights: |
info:eu-repo/semantics/openAccess |
| Accession Number: |
edsbas.1D9F96DD |
| Database: |
BASE |