A New Fossil Genus of Altingiaceae Based on Unlobed Leaves from Eocene Subtropical Evergreen Broad-leaved Forest in Europe DOI

Mengxiao Wu,

Jian Huang, Zhe‐Kun Zhou

et al.

International Journal of Plant Sciences, Journal Year: 2024, Volume and Issue: 185(6), P. 523 - 534

Published: July 22, 2024

Premise of research. Abundant fossil records Altingiaceae have been discovered from all Northern Hemisphere continents and suggest its widespread occurrence during the Paleogene, shedding light on evolutionary history. However, unlobed leaf fossils are rare only in East Asia to date. Methodology. Plant were collected lignite opencast mine Profen-Süd central Germany late Eocene sediments an alluvial coastal plain. From a total 140 compressed leaves, cuticles obtained 52 specimens for studying epidermal characters. Leaf architecture cuticle micromorphology described compared with extant species sharing similar characteristics. Pivotal results. The new material belongs incompletely known same region age. For taxonomic reasons, genus—Zlatkophyllum gen. nov.—associated is established. Zlatkophyllum fischkandelii sp. nov. et comb. redescribed reconsidered basis simple dentate, almost circular leaves semicraspedodromous secondary vein framework; Ω-shaped anticlinal walls cells; brachyparacytic stomata. Conclusions. genus first representative European Cenozoic exclusively thus providing important implications history family. In assemblage, Z. co-occurs abundant Steinhauera subglobosa infructescences family, taxon hypothetically previously unknown foliage S. subglobosa–producing plant.

Language: Английский

Evaluating the Centre‐Periphery Hypothesis Through Genomic Phylogeographical Comparisons of Two Sister Species of Liquidambar in East Asia's Tertiary Relict Forests DOI Open Access
Tian‐Rui Wang, Wuqin Xu,

Hans‐Peter Comes

et al.

Journal of Biogeography, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

ABSTRACT Aim Understanding the spatial distribution of genetic variation within species is a central tenet in evolutionary biology and conservation biology. This study explores how historical demographic processes and/or environmental factors interact to affect contemporary adaptive potential, with specific focus on testing ‘centre‐periphery’ hypothesis (CPH). Location Subtropical China. Taxon Liquidambar. Methods We combined comparative phylogeography, landscape genomics niche modelling investigate interplay between history past/current shaping Liquidambar formosana L. acalycina , sister pair East Asia's Tertiary relict forests. Results In both species, core populations occupied highly suitable habitats at highest densities. Consistent CPH, population diversity decreased, differentiation increased, from centre margin but not likely reflecting different histories relative contributions geography, past (LGM) current climates their present‐day variation. addition, showed higher potential future climate change than . Main Conclusions demonstrates that differences adaptability among closely related can be explained by contrasting responses multiple geographic/climatic factors. turn, it should also expand our understanding while informing efforts for these two species.

Language: Английский

Citations

2
Divergence of Two Diospyros Species Promoted by Geo‐Climatic Processes Across Dry Valleys and Lowlands in Subtropical China DOI

Zhao Yu-juan,

Hui‐Hui Xi,

Lin Jiao

et al.

Journal of Biogeography, Journal Year: 2025, Volume and Issue: unknown

Published: April 5, 2025

ABSTRACT Aim Exploring the divergence and speciation processes is central to understanding origin maintenance of biodiversity. The dry valley mosaic in Hengduan Mountains its southern extension range one special landscapes globally harbours a high level endemic plants tropical margin nature. valleys lowlands‐adapted constitute unique system explore how geological ecological effects have shaped here. Location Subtropical China. Taxon Diospyros dumetorum saxatilis. Methods We surveyed patterns genetic variation from 33 populations spanning their distribution ranges using three chloroplast DNA fragments eight nuclear microsatellite loci. Approximate Bayesian computation was conducted compare population demographic models considering gene flow estimate key parameters. used Ecological Niche Models (ENMs) reconstruct changes during glacial interglacial periods evaluate niche differentiation. Results Plastid data strongly support between two species occurring Pliocene/Pleistocene period followed by secondary contact response climatic oscillations. ENMs predicted drastic Quaternary identified significant differences conditions at set locations occupied these species. Correlation analyses were conducted, results suggest that geographical isolation rather than environmental heterogeneity shapes current structure within Main Conclusion Phylogeographical revealed our document geographic vicariance associated with tectonic uplifts initiated allopatric species, differentiation perhaps further accelerated limited subsequent flow. Our findings could contribute knowledge forces drive landscape valleys, as well evolution flora subtropical

Language: Английский

Citations

0
Genomic introgression underlies environmental adaptation in three species of Chinese wingnuts, Pterocarya DOI Creative Commons
Fang‐Dong Geng,

Miaoqing Liu,

Luzhen Wang

et al.

Plant Diversity, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
Selection and Validation of Reliable Reference Genes for Liquidambar formosana Leaves with Different Leaf Colors DOI Creative Commons

Fangwei Zhou,

Liang Xu, Congguang Shi

et al.

Current Issues in Molecular Biology, Journal Year: 2024, Volume and Issue: 46(9), P. 9449 - 9463

Published: Aug. 27, 2024

Hance is renowned for its rich leaf color and possesses notable advantages, such as robust adaptability, strong resistance to diseases pests, rapid growth, making it a preferred choice urban greening carbon sequestration forest initiatives. The completion of whole-genome sequencing

Language: Английский

Citations

1
Chromosome-level genome assembly of American sweetgum (Liquidambar styraciflua, Altingiaceae) DOI Creative Commons

Yazhen Ma,

Shi-Xiong Ding, Ying‐Xiong Qiu

et al.

Scientific Data, Journal Year: 2024, Volume and Issue: 11(1)

Published: Oct. 3, 2024

The deciduous American sweetgum (Liquidambar styraciflua, Altingiaceae) is a popular ornamental and economically valuable tree renowned for its sweet-smelling bark resin, abundant volatile substances, spectacular fall leaf color. However, the absence of reference genome hinders thorough investigations into mechanisms underlying phenotypic variation, secondary metabolite synthesis adaptation, both in this species other Liquidambar members. In study, we sequenced constructed chromosome-level assembly L. styraciflua genome, covering 662.48 Mb with scaffold N50 39.54 Mb, by integrating PacBio, Illumina chromosome conformation capture data. We identified 58.83% sequences as repetitive elements 25,713 protein-coding genes, 97.28% which were functionally annotated. sequencing reads, annotation data have been deposited publicly available repositories. This high-quality provides resources further evolutionary functional genomic studies species.

Language: Английский

Citations

1
A New Fossil Genus of Altingiaceae Based on Unlobed Leaves from Eocene Subtropical Evergreen Broad-leaved Forest in Europe DOI

Mengxiao Wu,

Jian Huang, Zhe‐Kun Zhou

et al.

International Journal of Plant Sciences, Journal Year: 2024, Volume and Issue: 185(6), P. 523 - 534

Published: July 22, 2024

Premise of research. Abundant fossil records Altingiaceae have been discovered from all Northern Hemisphere continents and suggest its widespread occurrence during the Paleogene, shedding light on evolutionary history. However, unlobed leaf fossils are rare only in East Asia to date. Methodology. Plant were collected lignite opencast mine Profen-Süd central Germany late Eocene sediments an alluvial coastal plain. From a total 140 compressed leaves, cuticles obtained 52 specimens for studying epidermal characters. Leaf architecture cuticle micromorphology described compared with extant species sharing similar characteristics. Pivotal results. The new material belongs incompletely known same region age. For taxonomic reasons, genus—Zlatkophyllum gen. nov.—associated is established. Zlatkophyllum fischkandelii sp. nov. et comb. redescribed reconsidered basis simple dentate, almost circular leaves semicraspedodromous secondary vein framework; Ω-shaped anticlinal walls cells; brachyparacytic stomata. Conclusions. genus first representative European Cenozoic exclusively thus providing important implications history family. In assemblage, Z. co-occurs abundant Steinhauera subglobosa infructescences family, taxon hypothetically previously unknown foliage S. subglobosa–producing plant.

Language: Английский

Citations

0