The Role of Hybridization in Species Formation and Persistence

Cold Spring Harbor Perspectives in Biology, Journal Year: 2024, Volume and Issue: 16(12), P. a041445 - a041445

Published: March 4, 2024

Joshua V. Peñalba1, Anna Runemark2, Joana I. Meier3,4, Pooja Singh5,6, Guinevere O.U. Wogan7, Rosa Sánchez-Guillén8, James Mallet9, Sina J. Rometsch10,11, Mitra Menon12, Ole Seehausen5,6, Jonna Kulmuni13,14,16 and Ricardo Pereira15,16 1Museum für Naturkunde, Leibniz Institute for Evolution Biodiversity Science, Center Integrative Discovery, 10115 Berlin, Germany 2Department of Biology, Lund University, 22632 Lund, Sweden 3Tree Life, Wellcome Sanger Institute, Hinxton, Cambridgeshire CB10 1SA, United Kingdom 4Department Zoology, University Cambridge, CB2 3EJ, 5Department Aquatic Ecology, Ecology Evolution, Bern, 3012 Switzerland 6Center & Biogeochemistry, Swiss Federal Science Technology (EAWAG), CH-8600 Kastanienbaum, 7Department Oklahoma State Stillwater, 74078, USA 8Red de Biología Evolutiva, INECOL, Xalapa, Veracruz, CP 91073, Mexico 9Organismal Evolutionary Harvard Massachusetts 02138, 10Department Yale New Haven, Connecticut 06511, 11Yale Biospheric Studies, 12Department California Davis, 95616, 13Department Population Ecosystem Dynamics, Amsterdam, 1098 XH The Netherlands 14Organismal Biology Research Programme, Helsinki, Biocenter 3, Finland 15Department Museum Natural History Stuttgart, Stuttgart 70191, Correspondence: ricardojn.pereira{at}gmail.com ↵16 These authors contributed equally to this work.

Language: Английский

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Pervasive gene flow despite strong and varied reproductive barriers in swordtails

Nature Ecology & Evolution, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

Abstract The evolution of reproductive barriers leads to the formation new species. However, recent research has demonstrated that hybridization been pervasive across tree life even in presence strong barriers. Using swordtail fishes (genus Xiphophorus ), an emerging model system, we document overlapping mechanisms act as gene flow between birchmanni and cortezi by combining genomic sequencing from natural hybrid populations, experimental laboratory crosses, behavioural assays, sperm measures developmental studies. We show assortative mating plays a role maintaining subpopulations with distinct ancestry within populations. F 2 hybrids identify several regions strongly impact viability. Strikingly, two these underlie genetic incompatibilities X. its sister species malinche . Our results demonstrate ancient played origin this shared incompatibility. Moreover, mismatch at incompatible remarkably similar consequences for phenotypes survival × hybrids. findings varied shape exchange naturally hybridizing highlight complex evolutionary outcomes hybridization.

Language: Английский

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Structural Variants and Speciation: Multiple Processes at Play

Cold Spring Harbor Perspectives in Biology, Journal Year: 2023, Volume and Issue: 16(3), P. a041446 - a041446

Published: Dec. 5, 2023

Emma L. Berdan1,2, Thomas G. Aubier3,4, Salvatore Cozzolino5, Rui Faria6,7, Jeffrey Feder8, Mabel D. Giménez9,10, Mathieu Joron11, Jeremy B. Searle12 and Claire Mérot13 1Department of Marine Sciences, Gothenburg University, 40530, Sweden 2Bioinformatics Core, Department Biostatistics, Harvard T.H. Chan School Public Health, Medical School, Boston, Massachusetts 02115, USA 3Laboratoire Évolution & Diversité Biologique, Université Paul Sabatier Toulouse III, UMR 5174, CNRS/IRD, 31077 Toulouse, France 4Department Biology, University North Carolina at Chapel Hill, 27599, 5Department Naples Federico II, Complesso Universitario di Monte S. Angelo, 80126 Napoli, Italia 6CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO, Laboratório Associado, Universidade do Porto, Vairão, Portugal 7BIOPOLIS Program in Genomics, Biodiversity Land Planning, CIBIO, 4485-661 8Department Biological Notre Dame, Indiana 46556, 9Consejo Nacional Investigaciones Científicas y Técnicas (CONICET), Instituto Genética Humana Misiones (IGeHM), Parque la Salud Provincia "Dr. Ramón Madariaga," N3300KAZ Posadas, Misiones, Argentina 10Facultad Ciencias Exactas, Químicas Naturales, Universidad N3300LQH 11Centre d'Ecologie Fonctionnelle et Evolutive, Montpellier, CNRS, EPHE, IRD, 12Department Ecology Evolutionary Cornell Ithaca, New York 14853, 13CNRS, 6553 Ecobio, OSUR, Rennes, 35000 Correspondence: claire.merot{at}gmail.com; emma.berdan{at}gmail.com

Language: Английский

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The Ecology of Hybrid Incompatibilities

Cold Spring Harbor Perspectives in Biology, Journal Year: 2023, Volume and Issue: 16(9), P. a041440 - a041440

Published: Dec. 27, 2023

Ecologically mediated selection against hybrids, caused by hybrid phenotypes fitting poorly into available niches, is typically viewed as distinct from epistatic Dobzhansky-Muller incompatibilities. Here, we show how transgressive in hybrids manifests incompatibility. After outlining our logic, summarize current approaches for studying ecology-based on hybrids. We then quantitatively review QTL-mapping studies and find traits differing between parent taxa are polygenic. Next, describe verbal models of translate to phenotypic genetic fitness landscapes, highlighting emerging detecting polygenic Finally, a synthesis published data, report that trait transgression-and thus possibly extrinsic incompatibility hybrids-escalates with the divergence parents. discuss conceptual implications conclude ecological basis will facilitate new discoveries about mechanisms speciation.

Language: Английский

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A cyclical switch of gametogenic pathways in hybrids depends on the ploidy level

Communications Biology, Journal Year: 2024, Volume and Issue: 7(1)

Published: April 8, 2024

Abstract The cellular and molecular mechanisms governing sexual reproduction are conserved across eukaryotes. Nevertheless, hybridization can disrupt these mechanisms, leading to asexual reproduction, often accompanied by polyploidy. In this study, we investigate how ploidy level ratio of parental genomes in hybrids affect their reproductive mode. We analyze the gametogenesis species diploid triploid from freshwater fish family Cobitidae, using newly developed cytogenetic markers. find that hybrid females possess oogonia oocytes with original (diploid) duplicated (tetraploid) ploidy. Diploid cannot progress beyond pachytene due aberrant pairing. However, tetraploid oocytes, which emerge after premeiotic genome endoreplication, exhibit normal pairing result gametes. Triploid diploid, triploid, haploid oocytes. checkpoint chromosome pairing, while have meiosis, resulting elimination a single-copied genome. males sterile failure chromosomal segregation during meiotic divisions. Thus, changes dosage may lead cyclical alteration gametogenic pathways hybrids.

Language: Английский

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Synthesis and Scope of the Role of Postmating Prezygotic Isolation in Speciation

Cold Spring Harbor Perspectives in Biology, Journal Year: 2023, Volume and Issue: 16(10), P. a041429 - a041429

Published: Dec. 27, 2023

How barriers to gene flow arise and are maintained key questions in evolutionary biology. Speciation research has mainly focused on that occur either before mating or after zygote formation. In comparison, postmating prezygotic (PMPZ) isolation-a barrier acts gamete release but formation-is less frequently investigated may hold a unique role generating biodiversity. Here we discuss the distinctive features of PMPZ isolation, including primary drivers molecular mechanisms underpinning isolation. We then present first comprehensive survey isolation research, revealing it is widespread form across eukaryotes. The also exposes obstacles studying part attributable challenges involved directly measuring uncovering its causal mechanisms. Finally, identify outstanding knowledge gaps provide recommendations for improving future This will allow us better understand nature this often-neglected reproductive contribution speciation.

Language: Английский

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Hybridization and gene expression: Beyond differentially expressed genes

Molecular Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 27, 2024

Gene expression has a key role in reproductive isolation, and studies of hybrid gene have identified mechanisms causing sterility. Here, we review the evidence for altered following hybridization outline shown to contribute hybrids. Transgressive expression, transcending that both parental species, is pervasive early generation sterile hybrids, but also frequently observed viable, fertile We highlight showing can result transgressive established lineages or species. Such extreme patterns stabilized taxa suggest may hybridization-derived evolutionary novelty. conclude while misexpression hybrids are well documented, understanding lagging. argue jointly assessing differences cell composition cell-specific changes addition chromatin methylation, will significantly advance our basis expression. Moreover, uncovering what extent evolution results individual genes, entire networks how selection moulds Finally, studying dual roles serving as mechanism isolation substrate ecological adaptation, lead significant advances

Language: Английский

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Pervasive gene flow despite strong and varied reproductive barriers in swordtails

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: April 20, 2024

One of the mechanisms that can lead to formation new species occurs through evolution reproductive barriers. However, recent research has demonstrated hybridization been pervasive across tree life even in presence strong Swordtail fishes (genus

Language: Английский

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Regulatory and evolutionary impact of DNA methylation in two songbird species and their naturally occurring F1 hybrids

BMC Biology, Journal Year: 2024, Volume and Issue: 22(1)

Published: May 28, 2024

Regulation of transcription by DNA methylation in 5'-CpG-3' context is a widespread mechanism allowing differential expression genetically identical cells to persist throughout development. Consequently, differences can reinforce variation gene among cells, tissues, populations, and species. Despite surge studies on methylation, we know little about the importance population differentiation speciation. Here investigate regulatory evolutionary impact five tissues two Ficedula flycatcher species their naturally occurring F

Language: Английский

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A three-dimensional genomics view for speciation research

Trends in Genetics, Journal Year: 2024, Volume and Issue: unknown

Published: June 1, 2024

Genomic information is folded in a three-dimensional (3D) structure, rarely explored evolutionary driver of speciation. Technological advances now enable the study 3D genome structures (3DGSs) across Tree Life. At onset speciation genomics, we discuss putative roles 3DGSs

Language: Английский

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