Consequences of Hybridization in Mammals: A Systematic Review

Genes, Journal Year: 2021, Volume and Issue: 13(1), P. 50 - 50

Published: Dec. 24, 2021

Hybridization, defined as breeding between two distinct taxonomic units, can have an important effect on the evolutionary patterns in cross-breeding taxa. Although interspecific hybridization has frequently been considered a maladaptive process, which threatens species genetic integrity and survival via swamping outbreeding depression, some cases introduce novel adaptive variation increase fitness. Most studies to date focused documenting events analyzing their causes, while relatively little is known about consequences of its impact parental species. To address this knowledge gap, we conducted systematic review mammals published 2010-2021, identified 115 relevant studies. Of 13 categories described these studies, most common negative consequence (21% studies) was positive (8%) gain variation. The total frequency (49%) higher than (13%) neutral (38%) consequences. These frequencies are biased by detection possibilities microsatellite loci, markers used papers assessed. As outcomes typically easier demonstrate ones (e.g., extinction vs hybrid speciation), they may be over-represented publications. Transition towards genomic involving both will provide better insight into real impacts hybridization.

Language: Английский

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Understanding natural selection and similarity: Convergent, parallel and repeated evolution

Molecular Ecology, Journal Year: 2023, Volume and Issue: 32(20), P. 5451 - 5462

Published: Sept. 19, 2023

Parallel and convergent evolution offer some of the most compelling evidence for significance natural selection in evolution, as emergence similar adaptive solutions is unlikely to occur by random chance alone. However, these terms are often employed inconsistently, leading misinterpretation confusion, recently proposed definitions have unintentionally diminished emphasis on solutions. Here, I examine various conceptual frameworks related parallel propose a consolidated framework that enhances our comprehension evolutionary patterns. The primary aim this harmonize concepts together with idea similarity. Both involve result environmental challenges. distinction lies ancestral phenotypes. takes place when phenotypes (before selection) lineages similar. Convergent happens distinct selection). Because an ancestral-based will inevitably lead cases where uncertainty may arise, includes general term, repeated which can be used term applying genotypes well responses pressures. Based argument genetic similarity frequently arise without selection, posits sequences not great interest unless linked actions or origins (mutation, standing variation, gene flow) locations sequences.Os casos de evolução paralela e convergente apresentam-se como provas convincentes da relevância selecção no processo evolutivo, já que é improvável soluções adaptativas semelhantes evoluam apenas por acaso. No entanto, estes dois termos são utilizados frequentemente forma inconsistente definições recentemente propostas diminuíram involuntariamente ênfase na semelhantes. Nesta contribuição, examino os quadros conceptuais relacionadas com proponho um quadro consolidado aumenta compreensão destes padrões evolutivos. O objectivo desta contribuição harmonizar conceitos juntamente similaridade. Ambos implicam resultado pressões evolutivas. A distinção reside nos fenótipos ancestrais: ocorre quando ancestrais (antes selecção) das linhagens eram acontece tinham distintos selecção). Dado uma baseada ancestralidade caracteres levará, inevitavelmente, em incerteza pode surgir, sugiro inclusão termo geral: repetida, ser aplicado à genótipos semelhantes, assim respostas ambientais. Com base argumentação similaridade genética surgir sem selecção, eu postulo similitude sequências genéticas não grande interesse, menos esteja relacionada às ações ou origens (mutação, variação existente, fluxo génico) localizações semelhantes.La evolución y ofrecen algunas las pruebas más contundentes la importancia selección en evolución, ya es improbable emergencia soluciones similares se produzca únicamente casualidad. Sin embargo, estos términos emplean menudo inconsistente, lo lugar interpretaciones erróneas confusión. Además, definiciones recientemente propuestas han restado importancia, involuntariamente, similares. En este artículo, diversos marcos conceptuales con convergente, propongo un marco mejora nuestra comprensión patrones El objetivo principal armonizar los conceptos similitud. implican presiones La distinción radica fenotipos ancestrales: ocurre cuando ancestrales selección) linajes eran produce lijanes tenían selección). una basada ancestralidad conducirá inevitablemente puede incertidumbre distinción, el incluye término general: utilizarse laxo aplicable genotipos similares, así respuestas ambientales. Basándose argumento similitud frecuentemente sin selección, postula secuencias gran interés esté vinculada acciones o orígenes (mutación, variación flujo genético) ubicaciones

Language: Английский

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Chromosome-level reference genome assembly for the mountain hare (Lepus timidus)

Peer Community Journal, Journal Year: 2025, Volume and Issue: 5

Published: Jan. 24, 2025

Language: Английский

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Recombination Variation Shapes Phylogeny and Introgression in Wild Diploid Strawberries

Molecular Biology and Evolution, Journal Year: 2023, Volume and Issue: 40(3)

Published: March 1, 2023

Abstract Introgressive hybridization is widespread in wild plants and has important consequences. However, frequent between species makes the estimation of species’ phylogeny challenging, little known about genomic landscape introgression as it results from complex interactions multiple evolutionary processes. Here, we reconstructed ten diploid strawberries with whole genome resequencing data then investigated influence recombination rate variation on introgression. We found that regions low showed reduced levels incomplete lineage sorting introgression, concentrated phylogenetic signals, thus contributing to most likely tree strawberries. revealed across genus Fragaria, an average proportion approximately 4.1% extant genome. Introgression tends be retained high rates gene density. Furthermore, identified four SLF genes under selective sweeps may play potential roles possible regain self-incompatibility by ancient Altogether, our study yielded novel insights into history characteristics provides evidence for role plant mating system transitions.

Language: Английский

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North African fox genomes show signatures of repeated introgression and adaptation to life in deserts

Nature Ecology & Evolution, Journal Year: 2023, Volume and Issue: 7(8), P. 1267 - 1286

Published: June 12, 2023

Language: Английский

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The evolution of white-tailed jackrabbit camouflage in response to past and future seasonal climates

Science, Journal Year: 2023, Volume and Issue: 379(6638), P. 1238 - 1242

Published: March 23, 2023

The genetic basis of adaptive traits has rarely been used to predict future vulnerability populations climate change. We show that light versus dark seasonal pelage in white-tailed jackrabbits (Lepus townsendii) tracks snow cover and is primarily determined by variation at endothelin receptor type B (EDNRB), corin serine peptidase (CORIN), agouti signaling protein (ASIP). Winter color was associated with deeply divergent alleles these genes, reflecting selection on both ancestral introgressed variation. Forecasted reductions are likely induce widespread camouflage mismatch. However, simulated for darker winter predicted adapt rapidly, providing a trait-based framework facilitate evolutionary rescue. These discoveries demonstrate how the change adaptation can inform conservation.

Language: Английский

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Hybridization with mountain hares increases the functional allelic repertoire in brown hares

Scientific Reports, Journal Year: 2021, Volume and Issue: 11(1)

Published: Aug. 4, 2021

Abstract Brown hares ( Lepus europaeus Pallas) are able to hybridize with mountain L. timidus Linnaeus) and produce fertile offspring, which results in cross-species gene flow. However, not much is known about the functional significance of this genetic introgression. Using targeted sequencing candidate loci combined mtDNA genotyping, we found ancestral diversity Finnish brown hare be small, likely due founder effect range expansion, while flow from constitutes an important source variability. Some variability, such as alleles thermogenin (uncoupling protein 1, UCP1 ), might have adaptive advantage for hares, whereas immunity-related MHC reciprocally exchanged maintained via balancing selection. Our study offers a rare example where expanding species can increase its allelic variability through hybridization congeneric native species, offering route shortcut evolutionary adaptation local environmental conditions.

Language: Английский

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The dynamics of introgression across an avian radiation

Evolution Letters, Journal Year: 2021, Volume and Issue: 5(6), P. 568 - 581

Published: Sept. 29, 2021

Hybridization and resulting introgression can play both a destructive creative role in the evolution of diversity. Thus, characterizing when where is most likely to occur help us understand causes diversification dynamics. Here, we examine prevalence variation using phylogenomic data from large (1300+ species), geographically widespread avian group, suboscine birds. We first patterns gene tree discordance across geographic distribution entire clade. then evaluate signal subset 206 species triads Patterson's D-statistic test for associations between evolutionary, geographic, environmental variables. find that varies lineages regions. The highest cases close proximity regions with more dynamic climates since Pleistocene. Our results highlight potential datasets examining broad hybridization suggest degree diverging might be predictable based on setting which they occur.

Language: Английский

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Integrated phylogenomic analyses unveil reticulate evolution inParthenocissus(Vitaceae), highlighting speciation dynamics in theHimalayan–HengduanMountains

New Phytologist, Journal Year: 2022, Volume and Issue: 238(2), P. 888 - 903

Published: Oct. 28, 2022

Summary Hybridization caused by frequent environmental changes can lead both to species diversification (speciation) and speciation reversal (despeciation), but the latter has rarely been demonstrated. Parthenocissus , a genus with its trifoliolate lineage in Himalayan–Hengduan Mountains (HHM) region showing perplexing phylogenetic relationships, provides an opportunity for investigating dynamics based on integrated evidence. We investigated discordance reticulate evolution rigorous analyses of plastome transcriptome data. focused reticulations HHM using population‐level genome resequencing dataset, incorporating evidence from morphology, distribution, elevation. Comprehensive confirmed multiple introgressions within robust temporal–spatial framework. Around region, at least three hybridization hot spots were identified, one which showed ongoing reversal. present solid case study integrative methodological approach investigate evolutionary history underlying mechanisms plants. It demonstrates example through hybridizations new perspectives mountainous areas strong topographic heterogeneity.

Language: Английский

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Phylogenomics reveal extensive phylogenetic discordance due to incomplete lineage sorting following the rapid radiation of alpine butterflies (Papilionidae: Parnassius)

Systematic Entomology, Journal Year: 2023, Volume and Issue: 48(4), P. 585 - 599

Published: April 3, 2023

Abstract Under rapid radiation, the earliest components of evolutionary divergence are often difficult to resolve, which were always driven by characteristics taxa and limitations alternative analytical methods. The origin radiation alpine butterfly Parnassius , a high‐altitude mountainous insect group, can be attributed uplift Qinghai‐Tibet Plateau. Despite detailed phylogenetic analyses genus, deep relationships among major subgenera remain recalcitrant. In this study, 102 individuals from 10 representative species sampled resolve based on nuclear mitochondrial genome datasets. Gene‐tree/species‐tree conflicts detected concatenation multispecies coalescent (MSC) approaches. We recovered well‐supported tree, despite these conflicts, considerable discordance genomic regions. main explanation for topological was extensive incomplete lineage sorting (ILS), whereas introgression events not prominent. explosive (i.e., succession speciation events) in late Miocene associated with environmental plateau led short internal branches, thereby increasing ILS especially closely related subgenera. Our results also suggested that MSC approaches (SNP AFLP Package Phylogenetic analysis [SNAPP] SVDquartets) accurate superior approach; particular, SVDquartets explicitly accommodate gene‐tree/species‐tree caused high demonstrate strong robustness. Finally, we explored phylogenomic data testing multiple sources conflict clarify strengths different approaches, while considering signal variation loci. anticipate phylogeny described here will backbone future studies genus provide insight into due radiation.

Language: Английский

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