1
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Münger X, Robin M, Dalén L, Grossen C. Facilitated introgression from domestic goat into Alpine ibex at immune loci. Mol Ecol 2024; 33:e17429. [PMID: 38847234 DOI: 10.1111/mec.17429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 04/29/2024] [Accepted: 05/08/2024] [Indexed: 07/09/2024]
Abstract
Hybridization can result in the transfer of adaptive genetic material from one species to another, known as adaptive introgression. Bottlenecked (and hence genetically depleted) species are expected to be particularly receptive to adaptive introgression, since introgression can introduce new or previously lost adaptive genetic variation. The Alpine ibex (Capra ibex), which recently recovered from near extinction, is known to hybridize with the domestic goat (Capra aegagrus hircus), and signals of introgression previously found at the major histocompatibility complex were suggested to potentially be adaptive. Here, we combine two ancient whole genomes of Alpine ibex with 29 modern Alpine ibex genomes and 31 genomes representing six related Capra species to investigate the genome-wide patterns of introgression and confirm the potential relevance of immune loci. We identified low rates of admixture in modern Alpine ibex through various F statistics and screening for putative introgressed tracts. Further results based on demographic modelling were consistent with introgression to have occurred during the last 300 years, coinciding with the known species bottleneck, and that in each generation, 1-2 out of 100 Alpine ibex had a domestic goat parent. The putatively introgressed haplotypes were enriched at immune-related genes, where the adaptive value of alternative alleles may give individuals with otherwise depleted genetic diversity a selective advantage. While interbreeding with domestic species is a prevalent issue in species conservation, in this specific case, it resulted in putative adaptive introgression. Our findings highlight the complex interplay between hybridization, adaptive evolution, and the potential risks and benefits associated with anthropogenic influences on wild species.
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Affiliation(s)
- Xenia Münger
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
- School of Biological Sciences, Monash University, Clayton, Victoria, Australia
| | - Mathieu Robin
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - Love Dalén
- Centre for Palaeogenetics, Stockholm, Sweden
- Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Stockholm, Sweden
- Department of Zoology, Stockholm University, Stockholm, Sweden
| | - Christine Grossen
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
- WSL Swiss Federal Research Institute, Birmensdorf, Switzerland
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2
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Hansen MM. Prepping for climate change by introgressive hybridization. Trends Genet 2023:S0168-9525(23)00083-5. [PMID: 37005189 DOI: 10.1016/j.tig.2023.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 03/23/2023] [Indexed: 04/03/2023]
Abstract
Species and populations may adapt to climate change by microevolutionary processes. However, standing genetic variation can be insufficient for this to occur. An interesting new study of a system of rainbowfish species shows that intraspecific hybridization enriches gene pools with adaptive variation that may allow persistence in a changing climate.
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3
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Seaborn T, Andrews KR, Applestein CV, Breech TM, Garrett MJ, Zaiats A, Caughlin TT. Integrating genomics in population models to forecast translocation success. Restor Ecol 2021. [DOI: 10.1111/rec.13395] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Travis Seaborn
- Department of Fish and Wildlife Sciences University of Idaho Moscow ID U.S.A
| | - Kimberly R. Andrews
- Institute for Bioinformatics and Evolutionary Studies (IBEST) University of Idaho Moscow ID U.S.A
| | | | - Tyler M. Breech
- Department of Biological Sciences Idaho State University Pocatello ID U.S.A
| | - Molly J. Garrett
- Department of Fish and Wildlife Sciences University of Idaho Moscow ID U.S.A
| | - Andrii Zaiats
- Biological Sciences Boise State University Boise ID U.S.A
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4
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Pfennig KS. Biased Hybridization and Its Impact on Adaptive Introgression. Trends Ecol Evol 2021; 36:488-497. [PMID: 33752896 DOI: 10.1016/j.tree.2021.02.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 02/07/2023]
Abstract
Gene exchange between species can influence ecological and evolutionary processes ranging from population rescue to adaptive radiation. Genomic tools have provided new insights into the prevalence and nature of gene exchange between species. However, much remains unknown of how ecological, behavioral, and evolutionary factors determine what genetic variation moves between species in the first place. In particular, more research is needed that evaluates whether such factors bias gene flow from one species to another, and whether any such biases affect how genetic variation from another species is ultimately retained in the genome of a given species. Addressing this issue is crucial in a changing world where hybridization and introgression might determine which species succeed and which become extinct.
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Affiliation(s)
- Karin S Pfennig
- Department of Biology, University of North Carolina, Chapel Hill, NC 27599-3280, USA.
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5
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Cooper RD, Shaffer HB. Allele-specific expression and gene regulation help explain transgressive thermal tolerance in non-native hybrids of the endangered California tiger salamander (Ambystoma californiense). Mol Ecol 2021; 30:987-1004. [PMID: 33338297 DOI: 10.1111/mec.15779] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 11/30/2020] [Accepted: 12/11/2020] [Indexed: 01/26/2023]
Abstract
Hybridization between native and non-native species is an ongoing global conservation threat. Hybrids that exhibit traits and tolerances that surpass parental values are of particular concern, given their potential to outperform native species. Effective management of hybrid populations requires an understanding of both physiological performance and the underlying mechanisms that drive transgressive hybrid traits. Here, we explore several aspects of the hybridization between the endangered California tiger salamander (Ambystoma californiense; CTS) and the introduced barred tiger salamander (Ambystoma mavortium; BTS). We assayed critical thermal maximum (CTMax) to compare the ability of CTS, BTS and F1 hybrids to tolerate acute thermal stress, and found that hybrids exhibit a wide range of CTMax values, with 33% (4/12) able to tolerate temperatures greater than either parent. We then quantified the genomic response, measured at the RNA transcript level, of each salamander, to explore the mechanisms underlying thermal tolerance strategies. We found that CTS and BTS have strikingly different values and tissue-specific patterns of overall gene expression, with hybrids expressing intermediate values. F1 hybrids display abundant and variable degrees of allele-specific expression (ASE), likely arising from extensive compensatory evolution in gene regulatory mechanisms between CTS and BTS. We found evidence that the proportion of genes with allelic imbalance in individual hybrids correlates with their CTMax, suggesting a link between ASE and expanded thermal tolerance that may contribute to the success of hybrid salamanders in California. Future climate change may further complicate management of CTS if hybrid salamanders are better equipped to deal with rising temperatures.
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Affiliation(s)
- Robert D Cooper
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA.,La Kretz Center for California Conservation Science, Institute of the Environment and Sustainability, University of California, Los Angeles, CA, USA
| | - H Bradley Shaffer
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA.,La Kretz Center for California Conservation Science, Institute of the Environment and Sustainability, University of California, Los Angeles, CA, USA
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6
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Pabijan M, Palomar G, Antunes B, Antoł W, Zieliński P, Babik W. Evolutionary principles guiding amphibian conservation. Evol Appl 2020; 13:857-878. [PMID: 32431739 PMCID: PMC7232768 DOI: 10.1111/eva.12940] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 02/05/2020] [Accepted: 02/18/2020] [Indexed: 12/18/2022] Open
Abstract
The Anthropocene has witnessed catastrophic amphibian declines across the globe. A multitude of new, primarily human-induced drivers of decline may lead to extinction, but can also push species onto novel evolutionary trajectories. If these are recognized by amphibian biologists, they can be engaged in conservation actions. Here, we summarize how principles stemming from evolutionary concepts have been applied for conservation purposes, and address emerging ideas at the vanguard of amphibian conservation science. In particular, we examine the consequences of increased drift and inbreeding in small populations and their implications for practical conservation. We then review studies of connectivity between populations at the landscape level, which have emphasized the limiting influence of anthropogenic structures and degraded habitat on genetic cohesion. The rapid pace of environmental changes leads to the central question of whether amphibian populations can cope either by adapting to new conditions or by shifting their ranges. We gloomily conclude that extinction seems far more likely than adaptation or range shifts for most species. That said, conservation strategies employing evolutionary principles, such as selective breeding, introduction of adaptive variants through translocations, ecosystem interventions aimed at decreasing phenotype-environment mismatch, or genetic engineering, may effectively counter amphibian decline in some areas or for some species. The spread of invasive species and infectious diseases has often had disastrous consequences, but has also provided some premier examples of rapid evolution with conservation implications. Much can be done in terms of setting aside valuable amphibian habitat that should encompass both natural and agricultural areas, as well as designing protected areas to maximize the phylogenetic and functional diversity of the amphibian community. We conclude that an explicit consideration and application of evolutionary principles, although certainly not a silver bullet, should increase effectiveness of amphibian conservation in both the short and long term.
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Affiliation(s)
- Maciej Pabijan
- Institute of Zoology and Biomedical ResearchFaculty of BiologyJagiellonian UniversityKrakówPoland
| | - Gemma Palomar
- Institute of Environmental SciencesFaculty of BiologyJagiellonian UniversityKrakówPoland
| | - Bernardo Antunes
- Institute of Environmental SciencesFaculty of BiologyJagiellonian UniversityKrakówPoland
| | - Weronika Antoł
- Institute of Environmental SciencesFaculty of BiologyJagiellonian UniversityKrakówPoland
| | - Piotr Zieliński
- Institute of Environmental SciencesFaculty of BiologyJagiellonian UniversityKrakówPoland
| | - Wiesław Babik
- Institute of Environmental SciencesFaculty of BiologyJagiellonian UniversityKrakówPoland
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7
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Chen C, Pfennig KS. Female toads engaging in adaptive hybridization prefer high-quality heterospecifics as mates. Science 2020; 367:1377-1379. [DOI: 10.1126/science.aaz5109] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 01/28/2020] [Indexed: 01/05/2023]
Abstract
Hybridization—interbreeding between species—is generally thought to occur randomly between members of two species. Contrary to expectation, female plains spadefoot toads (Spea bombifrons) can increase their evolutionary fitness by preferentially mating with high-quality males of another species, the Mexican spadefoot toad (Spea multiplicata). Aspects of Mexican spadefoot males’ mating calls predict their hybrid offspring’s fitness, and plains spadefoot females prefer Mexican spadefoot males on the basis of these attributes, but only in populations and ecological conditions where hybridization is adaptive. By selecting fitness-enhancing mates of another species, females increase hybridization’s benefits and exert sexual selection across species. Nonrandom mating between species can thereby increase the potential for adaptive gene flow between species so that adaptive introgression is not simply happenstance.
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Affiliation(s)
- Catherine Chen
- Department of Biology, Campus Box 3280, Coker Hall, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Karin S. Pfennig
- Department of Biology, Campus Box 3280, Coker Hall, University of North Carolina, Chapel Hill, NC 27599, USA
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8
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Gilchrist C, Stelkens R. Aneuploidy in yeast: Segregation error or adaptation mechanism? Yeast 2019; 36:525-539. [PMID: 31199875 PMCID: PMC6772139 DOI: 10.1002/yea.3427] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/30/2019] [Accepted: 06/04/2019] [Indexed: 01/24/2023] Open
Abstract
Aneuploidy is the loss or gain of chromosomes within a genome. It is often detrimental and has been associated with cell death and genetic disorders. However, aneuploidy can also be beneficial and provide a quick solution through changes in gene dosage when cells face environmental stress. Here, we review the prevalence of aneuploidy in Saccharomyces, Candida, and Cryptococcus yeasts (and their hybrid offspring) and analyse associations with chromosome size and specific stressors. We discuss how aneuploidy, a segregation error, may in fact provide a natural route for the diversification of microbes and enable important evolutionary innovations given the right ecological circumstances, such as the colonisation of new environments or the transition from commensal to pathogenic lifestyle. We also draw attention to a largely unstudied cross link between hybridisation and aneuploidy. Hybrid meiosis, involving two divergent genomes, can lead to drastically increased rates of aneuploidy in the offspring due to antirecombination and chromosomal missegregation. Because hybridisation and aneuploidy have both been shown to increase with environmental stress, we believe it important and timely to start exploring the evolutionary significance of their co-occurrence.
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Affiliation(s)
- Ciaran Gilchrist
- Division of Population Genetics, Department of ZoologyStockholm UniversityStockholmSweden
| | - Rike Stelkens
- Division of Population Genetics, Department of ZoologyStockholm UniversityStockholmSweden
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9
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Derry AM, Fraser DJ, Brady SP, Astorg L, Lawrence ER, Martin GK, Matte J, Negrín Dastis JO, Paccard A, Barrett RDH, Chapman LJ, Lane JE, Ballas CG, Close M, Crispo E. Conservation through the lens of (mal)adaptation: Concepts and meta-analysis. Evol Appl 2019; 12:1287-1304. [PMID: 31417615 PMCID: PMC6691223 DOI: 10.1111/eva.12791] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 02/24/2019] [Accepted: 03/07/2019] [Indexed: 12/25/2022] Open
Abstract
Evolutionary approaches are gaining popularity in conservation science, with diverse strategies applied in efforts to support adaptive population outcomes. Yet conservation strategies differ in the type of adaptive outcomes they promote as conservation goals. For instance, strategies based on genetic or demographic rescue implicitly target adaptive population states whereas strategies utilizing transgenerational plasticity or evolutionary rescue implicitly target adaptive processes. These two goals are somewhat polar: adaptive state strategies optimize current population fitness, which should reduce phenotypic and/or genetic variance, reducing adaptability in changing or uncertain environments; adaptive process strategies increase genetic variance, causing maladaptation in the short term, but increase adaptability over the long term. Maladaptation refers to suboptimal population fitness, adaptation refers to optimal population fitness, and (mal)adaptation refers to the continuum of fitness variation from maladaptation to adaptation. Here, we present a conceptual classification for conservation that implicitly considers (mal)adaptation in the short-term and long-term outcomes of conservation strategies. We describe cases of how (mal)adaptation is implicated in traditional conservation strategies, as well as strategies that have potential as a conservation tool but are relatively underutilized. We use a meta-analysis of a small number of available studies to evaluate whether the different conservation strategies employed are better suited toward increasing population fitness across multiple generations. We found weakly increasing adaptation over time for transgenerational plasticity, genetic rescue, and evolutionary rescue. Demographic rescue was generally maladaptive, both immediately after conservation intervention and after several generations. Interspecific hybridization was adaptive only in the F1 generation, but then rapidly leads to maladaptation. Management decisions that are made to support the process of adaptation must adequately account for (mal)adaptation as a potential outcome and even as a tool to bolster adaptive capacity to changing conditions.
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Affiliation(s)
- Alison Margaret Derry
- Département des sciences biologiquesUniversité du Québec à MontréalMontrealQuebecCanada
- Quebec Center for Biodiversity ScienceMontrealQuebecCanada
| | - Dylan J. Fraser
- Quebec Center for Biodiversity ScienceMontrealQuebecCanada
- Biology DepartmentConcordia UniversityMontrealQuebecCanada
| | - Steven P. Brady
- Biology DepartmentSouthern Connecticut State UniversityNew HavenConnecticut
| | - Louis Astorg
- Département des sciences biologiquesUniversité du Québec à MontréalMontrealQuebecCanada
| | | | - Gillian K. Martin
- Département des sciences biologiquesUniversité du Québec à MontréalMontrealQuebecCanada
| | | | | | - Antoine Paccard
- Redpath Museum and Department of BiologyMcGill UniversityMontrealQuebecCanada
| | - Rowan D. H. Barrett
- Quebec Center for Biodiversity ScienceMontrealQuebecCanada
- Redpath Museum and Department of BiologyMcGill UniversityMontrealQuebecCanada
| | - Lauren J. Chapman
- Quebec Center for Biodiversity ScienceMontrealQuebecCanada
- Redpath Museum and Department of BiologyMcGill UniversityMontrealQuebecCanada
| | - Jeffrey E. Lane
- Department of BiologyUniversity of SaskatchewanSaskatoonSaskatchewanCanada
| | | | - Marissa Close
- Department of BiologyPace UniversityNew YorkNew York
| | - Erika Crispo
- Department of BiologyPace UniversityNew YorkNew York
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10
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A spatially-explicit, individual-based demogenetic simulation framework for evaluating hybridization dynamics. Ecol Modell 2019. [DOI: 10.1016/j.ecolmodel.2019.03.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Affiliation(s)
- Karin S. Pfennig
- Department of Biology, University of North Carolina, Chapel Hill, NC 27599-3280, USA
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12
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McFarlane SE, Pemberton JM. Detecting the True Extent of Introgression during Anthropogenic Hybridization. Trends Ecol Evol 2019; 34:315-326. [DOI: 10.1016/j.tree.2018.12.013] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 12/10/2018] [Accepted: 12/18/2018] [Indexed: 10/27/2022]
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13
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14
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Stronen AV, Iacolina L, Ruiz-Gonzalez A. Rewilding and conservation genomics: How developments in (re)colonization ecology and genomics can offer mutual benefits for understanding contemporary evolution. Glob Ecol Conserv 2019. [DOI: 10.1016/j.gecco.2018.e00502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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15
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Fijarczyk A, Dudek K, Niedzicka M, Babik W. Balancing selection and introgression of newt immune-response genes. Proc Biol Sci 2018; 285:20180819. [PMID: 30111606 PMCID: PMC6111169 DOI: 10.1098/rspb.2018.0819] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 07/18/2018] [Indexed: 12/20/2022] Open
Abstract
The importance of interspecific introgression as a source of adaptive variation is increasingly recognized. Theory predicts that beneficial genetic variants cross species boundaries easily even when interspecific hybridization is rare and gene flow is strongly constrained throughout the genome. However, it remains unclear whether certain classes of genes are particularly prone to adaptive introgression. Genes affected by balancing selection (BS) may constitute such a class, because forms of BS that favour novel, initially rare alleles, should facilitate introgression. We tested this hypothesis in hybridizing newts by comparing 13 genes with signatures of BS, in particular an excess of common non-synonymous polymorphisms, to the genomic background (154 genes). Parapatric hybridizing taxa were less differentiated in BS candidate genes than more closely related allopatric lineages, while the opposite was observed in the control genes. Coalescent and forward simulations that explored neutral and BS scenarios under isolation and migration showed that processes other than differential gene flow are unlikely to account for this pattern. We conclude that BS, probably involving a form of novel allele advantage, promotes introgression. This mechanism may be a source of adaptively relevant variation in hybridizing species over prolonged periods.
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Affiliation(s)
- Anna Fijarczyk
- Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
- Institut de Biologie Intégrative et des Systèmes, Département de Biologie, Université Laval, 1030, Avenue de la Médecine, Québec, Canada G1V 0A6
| | - Katarzyna Dudek
- Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
| | - Marta Niedzicka
- Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
| | - Wiesław Babik
- Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
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16
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Kovach RP, Hand BK, Hohenlohe PA, Cosart TF, Boyer MC, Neville HH, Muhlfeld CC, Amish SJ, Carim K, Narum SR, Lowe WH, Allendorf FW, Luikart G. Vive la résistance: genome-wide selection against introduced alleles in invasive hybrid zones. Proc Biol Sci 2017; 283:rspb.2016.1380. [PMID: 27881749 DOI: 10.1098/rspb.2016.1380] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 10/25/2016] [Indexed: 12/11/2022] Open
Abstract
Evolutionary and ecological consequences of hybridization between native and invasive species are notoriously complicated because patterns of selection acting on non-native alleles can vary throughout the genome and across environments. Rapid advances in genomics now make it feasible to assess locus-specific and genome-wide patterns of natural selection acting on invasive introgression within and among natural populations occupying diverse environments. We quantified genome-wide patterns of admixture across multiple independent hybrid zones of native westslope cutthroat trout and invasive rainbow trout, the world's most widely introduced fish, by genotyping 339 individuals from 21 populations using 9380 species-diagnostic loci. A significantly greater proportion of the genome appeared to be under selection favouring native cutthroat trout (rather than rainbow trout), and this pattern was pervasive across the genome (detected on most chromosomes). Furthermore, selection against invasive alleles was consistent across populations and environments, even in those where rainbow trout were predicted to have a selective advantage (warm environments). These data corroborate field studies showing that hybrids between these species have lower fitness than the native taxa, and show that these fitness differences are due to selection favouring many native genes distributed widely throughout the genome.
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Affiliation(s)
- Ryan P Kovach
- Northern Rocky Mountain Science Center, US Geological Survey, Missoula, MT 59802, USA
| | - Brian K Hand
- Flathead Biological Station, University of Montana, Polson, MT 59860, USA
| | - Paul A Hohenlohe
- Institute for Bioinformatics and Evolutionary Studies, Department of Biological Sciences, University of Idaho, Moscow, ID 83844, USA
| | - Ted F Cosart
- Flathead Biological Station, University of Montana, Polson, MT 59860, USA.,Fish and Wildlife Genomics Group, Division of Biological Sciences, University of Montana, Missoula, MT, USA
| | | | | | - Clint C Muhlfeld
- Northern Rocky Mountain Science Center, US Geological Survey, Missoula, MT 59802, USA.,Flathead Biological Station, University of Montana, Polson, MT 59860, USA
| | - Stephen J Amish
- Flathead Biological Station, University of Montana, Polson, MT 59860, USA.,Fish and Wildlife Genomics Group, Division of Biological Sciences, University of Montana, Missoula, MT, USA
| | - Kellie Carim
- Wildlife Biology Program, University of Montana, Missoula, MT 59812, USA
| | - Shawn R Narum
- Hagerman Genetics Laboratory, Columbia River Inter-Tribal Fish Commission, Hagerman, ID 83332, USA
| | - Winsor H Lowe
- Fish and Wildlife Genomics Group, Division of Biological Sciences, University of Montana, Missoula, MT, USA
| | - Fred W Allendorf
- Fish and Wildlife Genomics Group, Division of Biological Sciences, University of Montana, Missoula, MT, USA
| | - Gordon Luikart
- Flathead Biological Station, University of Montana, Polson, MT 59860, USA.,Fish and Wildlife Genomics Group, Division of Biological Sciences, University of Montana, Missoula, MT, USA
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17
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Hamilton JA, Royauté R, Wright JW, Hodgskiss P, Ledig FT. Genetic conservation and management of the California endemic, Torrey pine ( Pinus torreyana Parry): Implications of genetic rescue in a genetically depauperate species. Ecol Evol 2017; 7:7370-7381. [PMID: 28944023 PMCID: PMC5606898 DOI: 10.1002/ece3.3306] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 06/04/2017] [Accepted: 07/13/2017] [Indexed: 01/15/2023] Open
Abstract
Rare species present a challenge under changing environmental conditions as the genetic consequences of rarity may limit species ability to adapt to environmental change. To evaluate the evolutionary potential of a rare species, we assessed variation in traits important to plant fitness using multigenerational common garden experiments. Torrey pine, Pinus torreyana Parry, is one of the rarest pines in the world, restricted to one mainland and one island population. Morphological differentiation between island and mainland populations suggests adaptation to local environments may have contributed to trait variation. The distribution of phenotypic variances within the common garden suggests distinct population-specific growth trajectories underlay genetic differences, with the island population exhibiting substantially reduced genetic variance for growth relative to the mainland population. Furthermore, F1 hybrids, representing a cross between mainland and island trees, exhibit increased height accumulation and fecundity relative to mainland and island parents. This may indicate genetic rescue via intraspecific hybridization could provide the necessary genetic variation to persist in environments modified as a result of climate change. Long-term common garden experiments, such as these, provide invaluable resources to assess the distribution of genetic variance that may inform conservation strategies to preserve evolutionary potential of rare species, including genetic rescue.
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Affiliation(s)
- Jill A. Hamilton
- Department of Biological SciencesNorth Dakota State UniversityFargoNDUSA
| | - Raphaël Royauté
- Department of Biological SciencesNorth Dakota State UniversityFargoNDUSA
| | | | - Paul Hodgskiss
- Pacific Southwest Research StationUSDA‐Forest ServiceDavisCAUSA
| | - F. Thomas Ledig
- Department of Plant ScienceUniversity of CaliforniaDavisCAUSA
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18
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Colautti RI, Alexander JM, Dlugosch KM, Keller SR, Sultan SE. Invasions and extinctions through the looking glass of evolutionary ecology. Philos Trans R Soc Lond B Biol Sci 2017; 372:20160031. [PMID: 27920376 PMCID: PMC5182427 DOI: 10.1098/rstb.2016.0031] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2016] [Indexed: 11/12/2022] Open
Abstract
Invasive and endangered species reflect opposite ends of a spectrum of ecological success, yet they experience many similar eco-evolutionary challenges including demographic bottlenecks, hybridization and novel environments. Despite these similarities, important differences exist. Demographic bottlenecks are more transient in invasive species, which (i) maintains ecologically relevant genetic variation, (ii) reduces mutation load, and (iii) increases the efficiency of natural selection relative to genetic drift. Endangered species are less likely to benefit from admixture, which offsets mutation load but also reduces fitness when populations are locally adapted. Invading species generally experience more benign environments with fewer natural enemies, which increases fitness directly and also indirectly by masking inbreeding depression. Adaptive phenotypic plasticity can maintain fitness in novel environments but is more likely to evolve in invasive species encountering variable habitats and to be compromised by demographic factors in endangered species. Placed in an eco-evolutionary context, these differences affect the breadth of the ecological niche, which arises as an emergent property of antagonistic selection and genetic constraints. Comparative studies of invasions and extinctions that apply an eco-evolutionary perspective could provide new insights into the environmental and genetic basis of ecological success in novel environments and improve efforts to preserve global biodiversity.This article is part of the themed issue 'Human influences on evolution, and the ecological and societal consequences'.
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Affiliation(s)
- Robert I Colautti
- Department of Biology, Queen's University, 116 Barrie Street, Kingston, Ontario, Canada K7L 3N6
| | - Jake M Alexander
- Institute of Integrative Biology, Department of Environmental Systems Science, ETH Zurich, Universitätsstrasse 16, 8092 Zürich, Switzerland
| | - Katrina M Dlugosch
- Department of Ecology and Evolutionary Biology, University of Arizona, PO Box 210088, Tucson, AZ 85721, USA
| | - Stephen R Keller
- Department of Plant Biology, University of Vermont, 111 Jeffords Hall, Burlington, VT 05405, USA
| | - Sonia E Sultan
- Department of Biology, Wesleyan University, 237 Church Street, Middletown, CT 06459, USA
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19
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Abascal F, Corvelo A, Cruz F, Villanueva-Cañas JL, Vlasova A, Marcet-Houben M, Martínez-Cruz B, Cheng JY, Prieto P, Quesada V, Quilez J, Li G, García F, Rubio-Camarillo M, Frias L, Ribeca P, Capella-Gutiérrez S, Rodríguez JM, Câmara F, Lowy E, Cozzuto L, Erb I, Tress ML, Rodriguez-Ales JL, Ruiz-Orera J, Reverter F, Casas-Marce M, Soriano L, Arango JR, Derdak S, Galán B, Blanc J, Gut M, Lorente-Galdos B, Andrés-Nieto M, López-Otín C, Valencia A, Gut I, García JL, Guigó R, Murphy WJ, Ruiz-Herrera A, Marques-Bonet T, Roma G, Notredame C, Mailund T, Albà MM, Gabaldón T, Alioto T, Godoy JA. Extreme genomic erosion after recurrent demographic bottlenecks in the highly endangered Iberian lynx. Genome Biol 2016; 17:251. [PMID: 27964752 PMCID: PMC5155386 DOI: 10.1186/s13059-016-1090-1] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 10/25/2016] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Genomic studies of endangered species provide insights into their evolution and demographic history, reveal patterns of genomic erosion that might limit their viability, and offer tools for their effective conservation. The Iberian lynx (Lynx pardinus) is the most endangered felid and a unique example of a species on the brink of extinction. RESULTS We generate the first annotated draft of the Iberian lynx genome and carry out genome-based analyses of lynx demography, evolution, and population genetics. We identify a series of severe population bottlenecks in the history of the Iberian lynx that predate its known demographic decline during the 20th century and have greatly impacted its genome evolution. We observe drastically reduced rates of weak-to-strong substitutions associated with GC-biased gene conversion and increased rates of fixation of transposable elements. We also find multiple signatures of genetic erosion in the two remnant Iberian lynx populations, including a high frequency of potentially deleterious variants and substitutions, as well as the lowest genome-wide genetic diversity reported so far in any species. CONCLUSIONS The genomic features observed in the Iberian lynx genome may hamper short- and long-term viability through reduced fitness and adaptive potential. The knowledge and resources developed in this study will boost the research on felid evolution and conservation genomics and will benefit the ongoing conservation and management of this emblematic species.
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Affiliation(s)
- Federico Abascal
- Structural Biology and Biocomputing Programme, Spanish National Cancer Research Centre (CNIO), Madrid, 28029, Spain
| | - André Corvelo
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
| | - Fernando Cruz
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
- Department of Integrative Ecology, Doñana Biological Station (EBD), Spanish National Research Council (CSIC), C/ Americo Vespucio, s/n, 41092, Sevilla, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - José L Villanueva-Cañas
- Evolutionary Genomics Group, Research Programme on Biomedical Informatics (GRIB), Hospital del Mar Research Institute (IMIM), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Anna Vlasova
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Marina Marcet-Houben
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Begoña Martínez-Cruz
- Department of Integrative Ecology, Doñana Biological Station (EBD), Spanish National Research Council (CSIC), C/ Americo Vespucio, s/n, 41092, Sevilla, Spain
| | - Jade Yu Cheng
- Bioinformatics Research Centre, Aarhus University, C.F. Møllers Allé 8, 8000, Aarhus, Denmark
| | - Pablo Prieto
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Víctor Quesada
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, 33006, Oviedo, Spain
| | - Javier Quilez
- Institut de Biologia Evolutiva (UPF-CSIC), Universitat Pompeu Fabra, PRBB, Doctor Aiguader, 88, 08003, Barcelona, Spain
| | - Gang Li
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine, Texas A&M University, College Station, TX, 77843, USA
| | - Francisca García
- Servei de Cultius Cel.lulars (SCC, SCAC), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Miriam Rubio-Camarillo
- Structural Biology and Biocomputing Programme, Spanish National Cancer Research Centre (CNIO), Madrid, 28029, Spain
| | - Leonor Frias
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
| | - Paolo Ribeca
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
| | - Salvador Capella-Gutiérrez
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - José M Rodríguez
- Structural Biology and Biocomputing Programme, Spanish National Cancer Research Centre (CNIO), Madrid, 28029, Spain
- National Bioinformatics Institute (INB), Spanish National Cancer Research Centre (CNIO), Madrid, 28029, Spain
| | - Francisco Câmara
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Ernesto Lowy
- Bioinformatics Core Facility, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Luca Cozzuto
- Bioinformatics Core Facility, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Ionas Erb
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Michael L Tress
- Structural Biology and Biocomputing Programme, Spanish National Cancer Research Centre (CNIO), Madrid, 28029, Spain
| | - Jose L Rodriguez-Ales
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Jorge Ruiz-Orera
- Evolutionary Genomics Group, Research Programme on Biomedical Informatics (GRIB), Hospital del Mar Research Institute (IMIM), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Ferran Reverter
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Mireia Casas-Marce
- Department of Integrative Ecology, Doñana Biological Station (EBD), Spanish National Research Council (CSIC), C/ Americo Vespucio, s/n, 41092, Sevilla, Spain
| | - Laura Soriano
- Department of Integrative Ecology, Doñana Biological Station (EBD), Spanish National Research Council (CSIC), C/ Americo Vespucio, s/n, 41092, Sevilla, Spain
| | - Javier R Arango
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, 33006, Oviedo, Spain
| | - Sophia Derdak
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
| | - Beatriz Galán
- Department of Environmental Biology, Center for Biological Research (CIB), Spanish National Research Council (CSIC), Ramiro de Maeztu 9, 28040, Madrid, Spain
| | - Julie Blanc
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
| | - Marta Gut
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
| | - Belen Lorente-Galdos
- Institut de Biologia Evolutiva (UPF-CSIC), Universitat Pompeu Fabra, PRBB, Doctor Aiguader, 88, 08003, Barcelona, Spain
| | - Marta Andrés-Nieto
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain
| | - Carlos López-Otín
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, 33006, Oviedo, Spain
| | - Alfonso Valencia
- Structural Biology and Biocomputing Programme, Spanish National Cancer Research Centre (CNIO), Madrid, 28029, Spain
- National Bioinformatics Institute (INB), Spanish National Cancer Research Centre (CNIO), Madrid, 28029, Spain
| | - Ivo Gut
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
| | - José L García
- Department of Environmental Biology, Center for Biological Research (CIB), Spanish National Research Council (CSIC), Ramiro de Maeztu 9, 28040, Madrid, Spain
| | - Roderic Guigó
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
- Computational Genomics Group, Research Programme on Biomedical Informatics (GRIB), Hospital del Mar Research Institute (IMIM), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - William J Murphy
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine, Texas A&M University, College Station, TX, 77843, USA
| | - Aurora Ruiz-Herrera
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain
- Departament de Biologia Cel.lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain
| | - Tomas Marques-Bonet
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
- Institut de Biologia Evolutiva (UPF-CSIC), Universitat Pompeu Fabra, PRBB, Doctor Aiguader, 88, 08003, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain
| | - Guglielmo Roma
- Bioinformatics Core Facility, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Cedric Notredame
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Thomas Mailund
- Bioinformatics Research Centre, Aarhus University, C.F. Møllers Allé 8, 8000, Aarhus, Denmark
| | - M Mar Albà
- Evolutionary Genomics Group, Research Programme on Biomedical Informatics (GRIB), Hospital del Mar Research Institute (IMIM), Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain
| | - Toni Gabaldón
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain
| | - Tyler Alioto
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, 08003, Barcelona, Spain
| | - José A Godoy
- Department of Integrative Ecology, Doñana Biological Station (EBD), Spanish National Research Council (CSIC), C/ Americo Vespucio, s/n, 41092, Sevilla, Spain.
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20
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Galla SJ, Buckley TR, Elshire R, Hale ML, Knapp M, McCallum J, Moraga R, Santure AW, Wilcox P, Steeves TE. Building strong relationships between conservation genetics and primary industry leads to mutually beneficial genomic advances. Mol Ecol 2016; 25:5267-5281. [PMID: 27641156 DOI: 10.1111/mec.13837] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 08/23/2016] [Accepted: 08/24/2016] [Indexed: 02/06/2023]
Abstract
Several reviews in the past decade have heralded the benefits of embracing high-throughput sequencing technologies to inform conservation policy and the management of threatened species, but few have offered practical advice on how to expedite the transition from conservation genetics to conservation genomics. Here, we argue that an effective and efficient way to navigate this transition is to capitalize on emerging synergies between conservation genetics and primary industry (e.g., agriculture, fisheries, forestry and horticulture). Here, we demonstrate how building strong relationships between conservation geneticists and primary industry scientists is leading to mutually-beneficial outcomes for both disciplines. Based on our collective experience as collaborative New Zealand-based scientists, we also provide insight for forging these cross-sector relationships.
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Affiliation(s)
- Stephanie J Galla
- School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand.
| | - Thomas R Buckley
- Landcare Research, Private Bag 92170, Auckland Mail Centre, Auckland, 1142, New Zealand.,School of Biological Sciences, University of Auckland, Auckland, 1010, New Zealand
| | - Rob Elshire
- The Elshire Group, Ltd., 52 Victoria Avenue, Palmerston North, 4410, New Zealand
| | - Marie L Hale
- School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
| | - Michael Knapp
- Department of Anatomy, University of Otago, P.O. Box 913, Dunedin, 9054, New Zealand
| | - John McCallum
- Breeding and Genomics, New Zealand Institute for Plant and Food Research, Private Bag 4704, Christchurch, 8140, New Zealand
| | - Roger Moraga
- AgResearch, Ruakura Research Centre, Bisley Road, Private Bag 3115, Hamilton, 3240, New Zealand
| | - Anna W Santure
- School of Biological Sciences, University of Auckland, Auckland, 1010, New Zealand
| | - Phillip Wilcox
- Department of Mathematics and Statistics, University of Otago, P.O. Box 56, 710 Cumberland Street, Dunedin, 9054, New Zealand
| | - Tammy E Steeves
- School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
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21
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Miller JM, Hamilton JA. Interspecies hybridization in the conservation toolbox: response to Kovach et al. (2016). CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2016; 30:431-433. [PMID: 26918380 DOI: 10.1111/cobi.12677] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Accepted: 12/30/2015] [Indexed: 06/05/2023]
Affiliation(s)
- Joshua M Miller
- Department of Ecology and Evolutionary Biology, Yale University, 21 Sachem St. New Haven, CT, 06520, U.S.A
| | - Jill A Hamilton
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58102, U.S.A
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