ArticleAnnals of botany2023
Adaptive divergence and genetic vulnerability of relict species under climate change: a case study of Pterocarya macroptera.
Article in Annals of botany, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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21 citing papers in PubMed.
- A genomic perspective on adaptation to heterogeneous environments for Cycas segmentifida (Cycadaceae), an endemic cycad in southwest China.Annals of botany · 2026Article
- Conservation genetics and genetic vulnerability of Craigia yunnanensis (Malvaceae), a relict plant species with extremely small populations from Southwest China.Annals of botany · 2026Article
- Climate-Induced Genomic Selection: Genetic Structure Variation ofEvolutionary applications · 2026Article
- Chromosome-level genome and population resequencing reveal genetic diversity, demographic history, and climate risk in the East Asian relict treePlant diversity · 2026Article
- Genomic insights into adaptive divergence and genetic vulnerability to climate change of the medicinal plant Isodon rubescens (Hemsl.) H. Hara in central China.BMC plant biology · 2026Article
- Spatiotemporal genomic patterns ofForestry research · 2026Article
- Characterization of the chloroplast genome of a relict tree, Pterocarya fraxinifolia (Juglandaceae), and its comparative analysis.Scientific reports · 2025Article
- Genetic Limitation and Conservation Implications inBiology · 2025Article
- Genomic signatures of local adaptation to precipitation and solar radiation in kiwifruit.Plant diversity · 2025Article
- Genomic insights into the evolutionary history and conservation of the living fossilPlant diversity · 2025Article
- Genomic introgression underlies environmental adaptation in three species of Chinese wingnuts,Plant diversity · 2025Article
- Local Adaptation and Climate Change Vulnerability of the Relict Tree SpeciesEvolutionary applications · 2025Article
- Genomic Signatures of Environmental Adaptation inPlants (Basel, Switzerland) · 2025Article
- Conservation genomics of a threatened subtropical Rhododendron species highlights the distinct conservation actions required in marginal and admixed populations.The Plant journal : for cell and molecular biology · 2025Article
- Divergence of alpine plant populations of three Gentianaceae species in the Qinling sky Island.BMC plant biology · 2025Article
- Genomic vulnerability assessment reveals the potential benefits of adaptive introgression by mitigating the maladaptive risk of admixed populations.Forestry research · 2025Article
- Genetic Determination of a Cryptic Species in theEcology and evolution · 2024Article
- Lineage Differentiation and Genomic Vulnerability in a Relict Tree From Subtropical Forests.Evolutionary applications · 2024Article
- Integrating evolutionary genomics of forest trees to inform future tree breeding amid rapid climate change.Plant communications · 2024Review
- Cryptic diversity and rampant hybridization in annual gentians on the Qinghai-Tibet Plateau revealed by population genomic analysis.Plant diversity · 2024Article
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8 authors.
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Abstract
BACKGROUND AND
aimsUnderstanding adaptive genetic variation and whether it can keep pace with predicted future climate change is critical in assessing the genetic vulnerability of species and developing conservation management strategies. The lack of information on adaptive genetic variation in relict species carrying abundant genetic resources hinders the assessment of genetic vulnerability. Using a landscape genomics approach, this study aimed to determine how adaptive genetic variation shapes population divergence and to predict the adaptive potential of Pterocarya macroptera (a vulnerable relict species in China) under future climate scenarios.
methodsWe applied restriction site-associated DNA sequencing (RAD-seq) to obtain 8244 single-nucleotide polymorphisms (SNPs) from 160 individuals across 28 populations. We examined the pattern of genetic diversity and divergence, and then identified outliers by genetic differentiation (FST) and genotype-environment association (GEA) methods. We further dissected the effect of geographical/environmental gradients on genetic variation. Finally, we predicted genetic vulnerability and adaptive risk under future climate scenarios. KEY
resultsWe identified three genetic lineages within P. macroptera: the Qinling-Daba-Tianmu Mountains (QDT), Western Sichuan (WS) and Northwest Yunnan (NWY) lineages, which showed significant signals of isolation by distance (IBD) and isolation by environment (IBE). IBD and IBE explained 3.7-5.7 and 8.6-12.8 % of the genetic structure, respectively. The identified GEA SNP-related genes were involved in chemical defence and gene regulation and may exhibit higher genetic variation to adapt to the environment. Gradient forest analysis revealed that the genetic variation was mainly shaped by temperature-related variables, indicating its adaptation to local thermal environments. A limited adaptive potential was suggested by the high levels of genetic vulnerability in marginal populations.
conclusionsEnvironmental gradient mainly shaped the population differentiation of P. macroptera. Marginal populations may be at high risk of extinction, and thus proactive management measures, such as assisted gene flow, are required to ensure the survival of these populations.
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