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Resolving the Taxonomic Enigma of Adonis in Eastern North China: An Integrated Phylogenomic Approach.

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Title: Resolving the Taxonomic Enigma of Adonis in Eastern North China: An Integrated Phylogenomic Approach.
Authors: Li, Wen‐He1 (AUTHOR), Li, Ming‐Yang1 (AUTHOR), Liu, Bo‐Wen1 (AUTHOR), He, Jian1 (AUTHOR), Xiao, Jia‐Min1 (AUTHOR), Lin, Le‐Le2 (AUTHOR), Shang, Ce1 (AUTHOR), Wu, Huanyu1 (AUTHOR), Qin, Shuang1 (AUTHOR), Li, Zi‐Yi1 (AUTHOR), Cheng, Jin1 (AUTHOR) chengjin@bjfu.edu.cn, Xie, Lei1 (AUTHOR) xielei@bjfu.edu.cn
Source: Ecology & Evolution (20457758). Mar2026, Vol. 16 Issue 3, p1-18. 18p.
Subject Terms: *Species hybridization, Taxonomy, Phylogeny, Molecular phylogeny, Biological divergence, Biological classification
Geographic Terms: North China Plain (China), China, Hebei Sheng (China)
Abstract: The taxonomic identity of Adonis populations in eastern North China has long been controversial. Previous studies, relying on limited morphological data, have variably identified the Fuping (Hebei Province) population as A. ramosa, A. amurensis, or a subspecies of A. ramosa. To resolve this enigma, we conducted extensive field surveys and applied an integrated phylogenomic approach, utilizing genome skimming and RNA‐seq data from 44 samples representing 10 Adonis species in China. Our analyses, based on both complete plastid genomes and nuclear single‐copy orthologous genes, revealed that the Fuping population represents a distinct evolutionary lineage, which we describe as the new species A. fupingensis. In contrast, other populations from Beijing, Shandong, Henan, and Jiangsu were confirmed to belong to A. ramosa. We detected widespread gene tree discordance, primarily explained by incomplete lineage sorting (ILS), but also identified a clear case of ancient hybridization in the origin of A. sutchuenensis, with A. brevistyla and A. fupingensis as its parental donors. Despite the overall morphological similarity between A. fupingensis and A. ramosa, stable yet subtle differences in sepal and petal shape, root system architecture, and flowering phenology support their species‐level distinction. This study highlights the critical need for phylogenomic data to disentangle complex evolutionary histories and clarify taxonomic disputes in morphologically challenging plant groups. [ABSTRACT FROM AUTHOR]
Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Resolving the Taxonomic Enigma of Adonis in Eastern North China: An Integrated Phylogenomic Approach.
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Wen‐He%22">Li, Wen‐He</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Ming‐Yang%22">Li, Ming‐Yang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Bo‐Wen%22">Liu, Bo‐Wen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22He%2C+Jian%22">He, Jian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xiao%2C+Jia‐Min%22">Xiao, Jia‐Min</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lin%2C+Le‐Le%22">Lin, Le‐Le</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shang%2C+Ce%22">Shang, Ce</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Huanyu%22">Wu, Huanyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Qin%2C+Shuang%22">Qin, Shuang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Zi‐Yi%22">Li, Zi‐Yi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cheng%2C+Jin%22">Cheng, Jin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chengjin@bjfu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Xie%2C+Lei%22">Xie, Lei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> xielei@bjfu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Ecology+%26+Evolution+%2820457758%29%22">Ecology & Evolution (20457758)</searchLink>. Mar2026, Vol. 16 Issue 3, p1-18. 18p.
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  Data: *<searchLink fieldCode="DE" term="%22Species+hybridization%22">Species hybridization</searchLink><br /><searchLink fieldCode="DE" term="%22Taxonomy%22">Taxonomy</searchLink><br /><searchLink fieldCode="DE" term="%22Phylogeny%22">Phylogeny</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+phylogeny%22">Molecular phylogeny</searchLink><br /><searchLink fieldCode="DE" term="%22Biological+divergence%22">Biological divergence</searchLink><br /><searchLink fieldCode="DE" term="%22Biological+classification%22">Biological classification</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22North+China+Plain+%28China%29%22">North China Plain (China)</searchLink><br /><searchLink fieldCode="DE" term="%22China%22">China</searchLink><br /><searchLink fieldCode="DE" term="%22Hebei+Sheng+%28China%29%22">Hebei Sheng (China)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The taxonomic identity of Adonis populations in eastern North China has long been controversial. Previous studies, relying on limited morphological data, have variably identified the Fuping (Hebei Province) population as A. ramosa, A. amurensis, or a subspecies of A. ramosa. To resolve this enigma, we conducted extensive field surveys and applied an integrated phylogenomic approach, utilizing genome skimming and RNA‐seq data from 44 samples representing 10 Adonis species in China. Our analyses, based on both complete plastid genomes and nuclear single‐copy orthologous genes, revealed that the Fuping population represents a distinct evolutionary lineage, which we describe as the new species A. fupingensis. In contrast, other populations from Beijing, Shandong, Henan, and Jiangsu were confirmed to belong to A. ramosa. We detected widespread gene tree discordance, primarily explained by incomplete lineage sorting (ILS), but also identified a clear case of ancient hybridization in the origin of A. sutchuenensis, with A. brevistyla and A. fupingensis as its parental donors. Despite the overall morphological similarity between A. fupingensis and A. ramosa, stable yet subtle differences in sepal and petal shape, root system architecture, and flowering phenology support their species‐level distinction. This study highlights the critical need for phylogenomic data to disentangle complex evolutionary histories and clarify taxonomic disputes in morphologically challenging plant groups. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/ece3.73266
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      – Code: eng
        Text: English
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        PageCount: 18
        StartPage: 1
    Subjects:
      – SubjectFull: Species hybridization
        Type: general
      – SubjectFull: Taxonomy
        Type: general
      – SubjectFull: Phylogeny
        Type: general
      – SubjectFull: Molecular phylogeny
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      – SubjectFull: Biological divergence
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      – SubjectFull: Biological classification
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      – SubjectFull: North China Plain (China)
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      – SubjectFull: China
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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