The genomic secrets of invasive plants

New Phytologist, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

Summary Genomics has revolutionised the study of invasive species, allowing evolutionary biologists to dissect mechanisms invasion in unprecedented detail. Botanical research played an important role these advances, driving much what we currently know about key determinants success (e.g. hybridisation, whole‐genome duplication). Despite this, a comprehensive review plant genomics been lacking. Here, aim address this gap, highlighting recent discoveries that have helped progress field. For example, by leveraging natural and experimental populations, botanical confirmed importance large‐effect standing variation during adaptation species. Further, genomic investigations plants are increasingly revealing large structural variants, as well genetic changes induced duplication such redundancy or breakdown dosage‐sensitive reproductive barriers, can play adaptive evolution invaders. However, numerous questions remain, including when chromosomal inversions might help hinder invasions, whether gene reuse is common epigenetically mutations underpin plasticity populations. We conclude other outstanding studies poised answer.

Язык: Английский

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Exploring the patterns of evolution: Core thoughts and focus on the saltational model

Biosystems, Год журнала: 2024, Номер 238, С. 105181 - 105181

Опубликована: Март 11, 2024

Язык: Английский

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Integrating evolutionary genomics of forest trees to inform future tree breeding amidst rapid climate change

Plant Communications, Год журнала: 2024, Номер 5(10), С. 101044 - 101044

Опубликована: Авг. 7, 2024

Global climate change is leading to rapid and drastic shifts in environmental conditions, posing threats biodiversity nearly all life forms worldwide. Forest trees serve as foundational components of terrestrial ecosystems play a crucial role combating mitigating the adverse effects extreme events, despite their own vulnerability these threats. Therefore, understanding monitoring how natural forests respond key priority for conservation. Recent progress evolutionary genomics, driven primarily by cutting-edge multi-omics technologies, offers powerful new tools address several issues. These include precise delineation species units, inference past histories demographic fluctuations, identification environmentally adaptive variants, measurement genetic load levels. As urgency deal with more stresses grows, genomics history, local adaptation, future responses change, conservation restoration forest will be critical research at nexus global population biology. In this review, we explore application assess using approaches discuss outlook breeding climate-adapted trees.

Язык: Английский

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Documenting homoploid hybrid speciation

Molecular Ecology, Год журнала: 2024, Номер unknown

Опубликована: Май 23, 2024

Abstract Homoploid hybrid speciation is challenging to document because hybridization can lead outcomes other than speciation. Thus, some authors have argued that establishment of homoploid should include evidence reproductive barriers isolating the neo‐species from its parental species were derived hybridization. While this criterion difficult satisfy, several recent papers successfully employed a common pipeline identify candidate genes underlying such and (in one case) validate their function. We describe pipeline, application plant animal what we learned about as consequence. argue – given ubiquity admixture polygenic basis isolation could be much more protracted suggested by earlier conceptual arguments theoretical studies.

Язык: Английский

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Integrating hybridization and introgression into host–parasite epidemiology, ecology, and evolution

Trends in Parasitology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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In situ diversification and adaptive introgression in Taiwanese Scutellaria

Plant Biology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 22, 2025

Abstract Island habitats provide unique opportunities to study speciation. Recent work indicates that both ex situ origination and in speciation contribute island species diversity. However, clear evidence of local adaptation endemic plant on islands requires in‐depth studies, which are scarce. This underscores the importance maintaining boundaries by examining how adaptive introgression, hybridization, genetic variation species. Multilocus genome scanning 51 nuclear genes was used investigate evolutionary relationships Scutellaria complex Taiwan assess role diversification generating high endemism Interspecies introgressions were detected phylogenetic networks ABBA‐BABA‐based analysis, suggesting ongoing or recent processes. Coalescent‐based simulation identified hybrid taiwanensis hsiehii , with hybridization between more than two parental Genotype‐environment association studies revealed influence climate, particularly precipitation‐ temperature‐related factors, contributed divergence Additionally, introgression related environmental pressures may have facilitated colonization new identified. research illustrates shaped histories this island‐endemic sheds light multifaceted mechanisms semi‐isolated islands.

Язык: Английский

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Genetic Diversity and Landscape Genomics of Carya dabieshanensis (M.C. Liu and Z.J. Li) in a Heterogenous Habitat

Forests, Год журнала: 2025, Номер 16(3), С. 455 - 455

Опубликована: Март 4, 2025

Carya dabieshanensis is a species of significant economic value due to its unique flavor and nutritional properties as snack food, well durable wood, which highly suitable for furniture production. Known remarkable adaptability environmental stress, this serves valuable genetic resource enhancing hickory cultivars. However, restricted distribution limited availability high-quality germplasm have impeded large-scale cultivation hindered industry development. While the diversity genomic basis adaptation hold great promise future breeding programs, no studies date utilized SNP markers explore or mechanisms underlying adaptability. In study, we analyzed 60 samples from 12 natural populations C. dabieshanensis, representing global distribution. Using illinoinensis (Wangenh. K. Koch) genome reference, employed Specific Locus Amplified Fragment Sequencing (SLAF-seq) generate data. By integrating population landscape genomics approaches, investigated structure wild identified key factors driving differentiation. Our analysis revealed 9,120,926 markers, indicating substantial (π = 1.335 × 10−3 1.750 10−3) differentiation among (FST 0.117–0.354). Landscape BIO3 (Isothermality), BIO6 (Min Temperature Coldest Month), BIO14 (Precipitation Driest Month) critical shaping diversity. This study provides essential insights into resources facilitating development climate-resilient cultivars offering scientific foundation conservation sustainable management populations.

Язык: Английский

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Parallel loss of anthocyanins triggers the incipient sympatric speciation in an alpine ginger

Plant Diversity, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Population genomic analysis unravels the evolutionary processes leading to budding speciation

Journal of Integrative Plant Biology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Budding speciation is a process wherein new species arises from small, isolated population within or at the margin of an ancestral species. Well-documented cases budding are rare, and roles various evolutionary factors in this remain controversial. Based on whole-genome resequencing data 272 individuals across 27 populations, we reconstructed history Rhodiola sect. Trifida explored relative contributions natural selection, genetic drift, chromosomal rearrangements as drivers lineage divergence. We found that all samples R. chrysanthemifolia (including alterna sinuata) were clustered into three clades. liciae was sister to other section, likely due post-divergence gene flow minimal structure progenitor species, while it shared same ancestry with ch-I analyses. The two populations sinuata not monophyletic, instead clustering geographically proximate ch-III. Demographic analyses revealed underwent contraction size following its divergence approximately 0.34 million years ago (Mya), has remained stable since around 0.1 Mya. Genomic islands genotype-environment association suggested drift assorting polymorphism may have played more significant role than nature selection rearrangements. propose diverged through speciation, although obscured phylogenetic signal. Additionally, identified potential parallel events earlier stage liciae. Our study highlights prevalent yet poorly characterized mode plant key stochastic mechanism process.

Язык: Английский

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Comparative Analysis of the Chloroplast Genomes of Cypripedium: Assessing the Roles of SSRs and TRs in the Non-Coding Regions of LSC in Shaping Chloroplast Genome Size

International Journal of Molecular Sciences, Год журнала: 2025, Номер 26(8), С. 3691 - 3691

Опубликована: Апрель 14, 2025

Cypripedium is renowned for its high morphological diversity and complex genetic evolutionary characteristics. The chloroplast genome serves as a valuable tool investigating phylogenetic relationships processes in plants. Currently, research on the evolution of within genus limited due to insufficient large-scale sampling lack comprehensive understanding. Consequently, mechanisms underlying significant differences size among species remain poorly understood. In this study, we conducted comparative analysis genomes 29 species. lengths these ranged from 162,092 246,177 base pairs (bp) contained between 127 134 genes. Our results indicate that, while overall structure relatively conserved, were observed large single-copy (LSC), small (SSC), inverted repeat (IR) regions. Several genes, including psaC, rpl32, ycf1, psbK, exhibited higher levels variability may serve molecular markers taxonomic studies. our correlation suggest that expansion LSC region, increase simple sequence repeats (SSRs), tandem (TRs) have significantly enlarged Phylogenetic signal testing supports notion variation has driven divergence genus. Overall, findings provide insights into substantial length However, relationship diversification affecting Cypripedium, ecological adaptive evolution, incomplete lineage sorting (ILS), hybridization, reticulate events, requires further investigation.

Язык: Английский

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