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DOI	10.1038/s41559-022-01754-7
	Genome-wide analyses of introgression between two sympatric Asian oak species
	Fu R.; Zhu Y.; Liu Y.; Feng Y.; Lu R.-S.; Li Y.; Li P.; Kremer A.; Lascoux M.; Chen J.
发表日期	2022
ISSN	2397-334X
英文摘要	Introgression can be an important source of new alleles for adaption under rapidly changing environments, perhaps even more important than standing variation. Though introgression has been extensively studied in many plants and animals, key questions on the underlying mechanisms of introgression still remain unanswered. In particular, we are yet to determine the genomic distribution of introgressed regions along the genome; whether the extent and patterns of introgression are influenced by ecological factors; and when and how introgression contributes to adaptation. Here, we generated high-quality genomic resources for two sympatric widespread Asian oak species, Quercus acutissima and Q. variabilis, sampled in multiple forests to study introgression between them. We show that introgressed regions are broadly distributed across the genome. Introgression was affected by genetic divergence between pairs of populations and by the similarity of the environments in which they live—populations occupying similar ecological sites tended to share the same introgressed regions. Introgressed genomic footprints of adaptation were preferentially located in regions with suppressed recombination rate. Introgression probably confers adaptation in these oak populations by introducing allelic variation in cis-regulatory elements, in particular through transposable element insertions, thereby altering the regulation of genes related to stress. Our results provide new avenues of research for uncovering mechanisms of adaptation due to hybridization in sympatric species. ? 2022, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257182
作者单位	College of Life Sciences, Zhejiang University, Hangzhou, China; CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China; Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China; Key Laboratory of State Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China; UMR BIOGECO, INRAE, Université de Bordeaux, Cestas, France; Program in Plant Ecology and Evolution, Department of Ecology and Genetics, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
推荐引用方式 GB/T 7714	Fu R.,Zhu Y.,Liu Y.,et al. Genome-wide analyses of introgression between two sympatric Asian oak species[J],2022.
APA	Fu R..,Zhu Y..,Liu Y..,Feng Y..,Lu R.-S..,...&Chen J..(2022).Genome-wide analyses of introgression between two sympatric Asian oak species.Nature Ecology & Evolution.
MLA	Fu R.,et al."Genome-wide analyses of introgression between two sympatric Asian oak species".Nature Ecology & Evolution (2022).