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| Autores principales: | , , , , , , , |
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| Formato: | Artículo Open Access |
| Publicado: |
Wiley
2025
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| Acceso en línea: | https://onlinelibrary.wiley.com/doi/10.1002/ece3.71270 |
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| _version_ | 1867001922013102080 |
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| author | Yajing Zhang Yangyang Sun Minchen Zhong Fenglin Chen Yaning Wang Mulualem Tigabu XiangQing Ma Ming Li |
| author_facet | Yajing Zhang Yangyang Sun Minchen Zhong Fenglin Chen Yaning Wang Mulualem Tigabu XiangQing Ma Ming Li Yajing Zhang Yangyang Sun Minchen Zhong Fenglin Chen Yaning Wang Mulualem Tigabu XiangQing Ma Ming Li |
| collection | Wiley Open Access |
| contents | Genetic Differentiation of Chinese Fir Populations From Mainland China and Taiwan as Revealed by Genotyping‐By‐Sequencing Analysis, With Implication for Taxonomic Position of the Species Yajing Zhang Yangyang Sun Minchen Zhong Fenglin Chen Yaning Wang Mulualem Tigabu XiangQing Ma Ming Li Ecology and Evolution ABSTRACTClimate change and strait isolation during the glacial period had a profound effect on the differentiation of gymnosperms on both sides of the Taiwan Strait. The taxonomic status and population structure of Cunninghamia konishii (Taiwan) and C. lanceolata (mainland China) remain contentious due to conflicting morphological and molecular evidence. Thus, we sampled 92 accessions from seven natural populations, six from mainland China and one from Taiwan, and conducted high‐throughput genotyping‐by‐sequencing (GBS) analysis. The northern marginal population exhibited the lowest genetic diversity (θπ = 4.828 × 10−3), while the Taiwan population had the highest (θπ = 5.821 × 10−3), reflecting its role as a glacial refugium, while mainland populations retained lower diversity due to post‐glacial bottlenecks. There was little difference in Tajima's D values of selection pressure between mainland China and Taiwan. However, significant gene flow (Nm = 2.839) was observed, combined with low FST values (0.072–0.122), which indicate low genetic differentiation among C. lanceolata and C. konishii. Migration analysis indicated a high probability of unidirectional gene flow from mainland China to Taiwan, with the Dongshan Land Bridge facilitating pre‐glacial gene flow. We conclude that C. konishii represents an ecotype of C. lanceolata , shaped by environmental plasticity and incomplete isolation. This study enhances our understanding of the gene flow and evolutionary processes shaping the species and offers new insights into their taxonomic classification. 10.1002/ece3.71270 http://creativecommons.org/licenses/by/4.0/ |
| doi_str_mv | 10.1002/ece3.71270 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_ece3_71270 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| publishDate | 2025 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Genetic Differentiation of Chinese Fir Populations From Mainland China and Taiwan as Revealed by Genotyping‐By‐Sequencing Analysis, With Implication for Taxonomic Position of the Species Yajing Zhang Yangyang Sun Minchen Zhong Fenglin Chen Yaning Wang Mulualem Tigabu XiangQing Ma Ming Li Ecology and Evolution Genetic Differentiation of Chinese Fir Populations From Mainland China and Taiwan as Revealed by Genotyping‐By‐Sequencing Analysis, With Implication for Taxonomic Position of the Species Yajing Zhang Yangyang Sun Minchen Zhong Fenglin Chen Yaning Wang Mulualem Tigabu XiangQing Ma Ming Li Ecology and Evolution ABSTRACTClimate change and strait isolation during the glacial period had a profound effect on the differentiation of gymnosperms on both sides of the Taiwan Strait. The taxonomic status and population structure of Cunninghamia konishii (Taiwan) and C. lanceolata (mainland China) remain contentious due to conflicting morphological and molecular evidence. Thus, we sampled 92 accessions from seven natural populations, six from mainland China and one from Taiwan, and conducted high‐throughput genotyping‐by‐sequencing (GBS) analysis. The northern marginal population exhibited the lowest genetic diversity (θπ = 4.828 × 10−3), while the Taiwan population had the highest (θπ = 5.821 × 10−3), reflecting its role as a glacial refugium, while mainland populations retained lower diversity due to post‐glacial bottlenecks. There was little difference in Tajima's D values of selection pressure between mainland China and Taiwan. However, significant gene flow (Nm = 2.839) was observed, combined with low FST values (0.072–0.122), which indicate low genetic differentiation among C. lanceolata and C. konishii. Migration analysis indicated a high probability of unidirectional gene flow from mainland China to Taiwan, with the Dongshan Land Bridge facilitating pre‐glacial gene flow. We conclude that C. konishii represents an ecotype of C. lanceolata , shaped by environmental plasticity and incomplete isolation. This study enhances our understanding of the gene flow and evolutionary processes shaping the species and offers new insights into their taxonomic classification. 10.1002/ece3.71270 http://creativecommons.org/licenses/by/4.0/ |
| title | Genetic Differentiation of Chinese Fir Populations From Mainland China and Taiwan as Revealed by Genotyping‐By‐Sequencing Analysis, With Implication for Taxonomic Position of the Species |
| topic | Ecology and Evolution |
| url | https://onlinelibrary.wiley.com/doi/10.1002/ece3.71270 |