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Climate-influenced boreotropical survival and rampant introgressions explain the thriving of New World grapes in the north temperate zone

文献类型： 外文期刊

作者： Nie, Ze-Long 1 ; Hodel, Richard 2 ; Ma, Zhi-Yao 2 ; Johnson, Gabriel 2 ; Ren, Chen 4 ; Meng, Ying 1 ; Ickert-Bond, Stefanie M. 5 ; Liu, Xiu-Qun 7 ; Zimmer, Elizabeth 2 ; Wen, Jun 2 ;

作者机构： 1.Jishou Univ, Coll Biol & Environm Sci, Jishou 416000, Peoples R China

2.Smithsonian Inst, Natl Museum Nat Hist, Dept Bot, Washington, DC 20013 USA

3.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Shenzhen Branch, Guangdong Lab Lingnan Modern Agr,Genome Anal Lab,M, Shenzhen 518000, Peoples R China

4.Chinese Acad Sci, Key Lab Plant Resources Conservat & Sustainable Ut, South China Bot Garden, Guangzhou 510650, Peoples R China

5.Univ Alaska Museum North, Univ Alaska Fairbanks, Herbarium ALA, Fairbanks, AK 99775 USA

6.Univ Alaska Fairbanks, Dept Biol & Wildlife, Fairbanks, AK 99775 USA

7.Huazhong Agr Univ, Coll Hort & Forestry Sci, Key Lab Hort Plant Biol, Wuhan 430070, Peoples R China

关键词： boreotropical refugia; introgression; New World grapes; phylogenomics; temperate diversification

期刊名称：JOURNAL OF INTEGRATIVE PLANT BIOLOGY （ 影响因子：11.4； 五年影响因子：10.1 ）

ISSN： 1672-9072

年卷期： 2023 年 65 卷 5 期

页码：

收录情况： SCI

摘要： The north temperate region was characterized by a warm climate and a rich thermophilic flora before the Eocene, but early diversifications of the temperate biome under global climate change and biome shift remain uncertain. Moreover, it is becoming clear that hybridization/introgression is an important driving force of speciation in plant diversity. Here, we applied analyses from biogeography and phylogenetic networks to account for both introgression and incomplete lineage sorting based on genomic data from the New World Vitis, a charismatic component of the temperate North American flora with known and suspected gene flow among species. Biogeographic inference and fossil evidence suggest that the grapes were widely distributed from North America to Europe during the Paleocene to the Eocene, followed by widespread extinction and survival of relicts in the tropical New World. During the climate warming in the early Miocene, a Vitis ancestor migrated northward from the refugia with subsequent diversification in the North American region. We found strong evidence for widespread incongruence and reticulate evolution among nuclear genes within both recent and ancient lineages of the New World Vitis. Furthermore, the organellar genomes showed strong conflicts with the inferred species tree from the nuclear genomes. Our phylogenomic analyses provided an important assessment of the wide occurrence of reticulate introgression in the New World Vitis, which potentially represents one of the most important mechanisms for the diversification of Vitis species in temperate North America and even the entire temperate Northern Hemisphere. The scenario we report here may be a common model of temperate diversification of flowering plants adapted to the global climate cooling and fluctuation in the Neogene.

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