Genome sequences and population genomics reveal climatic adaptation and genomic divergence between two closely related sweetgum species
Understanding the genetic basis of population divergence and adaptation is an important goal in population genetics and evolutionary biology. However, the relative roles of demographic history, gene flow, and/or selective regime in driving genomic divergence, climatic adaptation, and speciation in no...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Wiley
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/139419 |
| _version_ | 1855530986361585664 |
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| author | Xu, Wu-Qin Ren, Chao-Qian Zhang, Xin-Yi Comes, Hans-Peter Liu, Xin-Hong Li, Yin-Gang Kettle, Christopher J. Jalonen, Riina Gaisberger, Hannes Ma, Ya-Zhen Qiu, Ying-Xiong |
| author_browse | Comes, Hans-Peter Gaisberger, Hannes Jalonen, Riina Kettle, Christopher J. Li, Yin-Gang Liu, Xin-Hong Ma, Ya-Zhen Qiu, Ying-Xiong Ren, Chao-Qian Xu, Wu-Qin Zhang, Xin-Yi |
| author_facet | Xu, Wu-Qin Ren, Chao-Qian Zhang, Xin-Yi Comes, Hans-Peter Liu, Xin-Hong Li, Yin-Gang Kettle, Christopher J. Jalonen, Riina Gaisberger, Hannes Ma, Ya-Zhen Qiu, Ying-Xiong |
| author_sort | Xu, Wu-Qin |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Understanding the genetic basis of population divergence and adaptation is an important goal in population genetics and evolutionary biology. However, the relative roles of demographic history, gene flow, and/or selective regime in driving genomic divergence, climatic adaptation, and speciation in non-model tree species are not yet fully understood. To address this issue, we generated whole-genome resequencing data of Liquidambar formosana and L. acalycina, which are broadly sympatric but altitudinally segregated in theTertiary relict forests of subtropical China. We integrated genomic and environmental data to investigate the demographic history, genomic divergence, and climatic adaptation of these two sister species. We inferred a scenario of allopatric species divergence during the late Miocene, followed by secondary contact during the Holocene. We identified multiple genomic islands of elevated divergence that mainly evolved through divergence hitchhiking and recombination rate variation, likely fostered by long-term refugial isolation and recent differential introgression in low-recombination genomic regions. We also found some candidate genes with divergent selection signatures potentially involved in climatic adaptation and reproductive isolation. Our results contribute to a better understanding of how late Tertiary/Quaternary climatic change influenced speciation, genomic divergence, climatic adaptation, and introgressive hybridization in East Asia’s Tertiary relict flora. In addition, they should facilitate future evolutionary, conservation genomics, and molecular breeding studies in Liquidambar, a genus of important medicinal and ornamental values. |
| format | Journal Article |
| id | CGSpace139419 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1394192025-12-12T14:52:00Z Genome sequences and population genomics reveal climatic adaptation and genomic divergence between two closely related sweetgum species Xu, Wu-Qin Ren, Chao-Qian Zhang, Xin-Yi Comes, Hans-Peter Liu, Xin-Hong Li, Yin-Gang Kettle, Christopher J. Jalonen, Riina Gaisberger, Hannes Ma, Ya-Zhen Qiu, Ying-Xiong genomics climate change adaptation speciation divergent selection liquidambar Understanding the genetic basis of population divergence and adaptation is an important goal in population genetics and evolutionary biology. However, the relative roles of demographic history, gene flow, and/or selective regime in driving genomic divergence, climatic adaptation, and speciation in non-model tree species are not yet fully understood. To address this issue, we generated whole-genome resequencing data of Liquidambar formosana and L. acalycina, which are broadly sympatric but altitudinally segregated in theTertiary relict forests of subtropical China. We integrated genomic and environmental data to investigate the demographic history, genomic divergence, and climatic adaptation of these two sister species. We inferred a scenario of allopatric species divergence during the late Miocene, followed by secondary contact during the Holocene. We identified multiple genomic islands of elevated divergence that mainly evolved through divergence hitchhiking and recombination rate variation, likely fostered by long-term refugial isolation and recent differential introgression in low-recombination genomic regions. We also found some candidate genes with divergent selection signatures potentially involved in climatic adaptation and reproductive isolation. Our results contribute to a better understanding of how late Tertiary/Quaternary climatic change influenced speciation, genomic divergence, climatic adaptation, and introgressive hybridization in East Asia’s Tertiary relict flora. In addition, they should facilitate future evolutionary, conservation genomics, and molecular breeding studies in Liquidambar, a genus of important medicinal and ornamental values. 2024-06 2024-02-15T10:03:44Z 2024-02-15T10:03:44Z Journal Article https://hdl.handle.net/10568/139419 en Open Access application/pdf Wiley Xu, W.; Ren, C.; Zhang, X.; Comes, H.; Liu, X.; Li, Y.; Kettle, C.J.; Jalonen, R.; Gaisberger, H.; Ma, Y.; Qiu, Y. (2024) Genome sequences and population genomics reveal climatic adaptation and genomic divergence between two closely related sweetgum species. Plant Journal , Online first paper (2024-02-11). ISSN: 0960-7412 |
| spellingShingle | genomics climate change adaptation speciation divergent selection liquidambar Xu, Wu-Qin Ren, Chao-Qian Zhang, Xin-Yi Comes, Hans-Peter Liu, Xin-Hong Li, Yin-Gang Kettle, Christopher J. Jalonen, Riina Gaisberger, Hannes Ma, Ya-Zhen Qiu, Ying-Xiong Genome sequences and population genomics reveal climatic adaptation and genomic divergence between two closely related sweetgum species |
| title | Genome sequences and population genomics reveal climatic adaptation and genomic divergence between two closely related sweetgum species |
| title_full | Genome sequences and population genomics reveal climatic adaptation and genomic divergence between two closely related sweetgum species |
| title_fullStr | Genome sequences and population genomics reveal climatic adaptation and genomic divergence between two closely related sweetgum species |
| title_full_unstemmed | Genome sequences and population genomics reveal climatic adaptation and genomic divergence between two closely related sweetgum species |
| title_short | Genome sequences and population genomics reveal climatic adaptation and genomic divergence between two closely related sweetgum species |
| title_sort | genome sequences and population genomics reveal climatic adaptation and genomic divergence between two closely related sweetgum species |
| topic | genomics climate change adaptation speciation divergent selection liquidambar |
| url | https://hdl.handle.net/10568/139419 |
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