1
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Horta-Lacueva QJB, Jónsson ZO, Thorholludottir DAV, Hallgrímsson B, Kapralova KH. Rapid and biased evolution of canalization during adaptive divergence revealed by dominance in gene expression variability during Arctic charr early development. Commun Biol 2023; 6:897. [PMID: 37652977 PMCID: PMC10471602 DOI: 10.1038/s42003-023-05264-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/21/2023] [Indexed: 09/02/2023] Open
Abstract
Adaptive evolution may be influenced by canalization, the buffering of developmental processes from environmental and genetic perturbations, but how this occurs is poorly understood. Here, we explore how gene expression variability evolves in diverging and hybridizing populations, by focusing on the Arctic charr (Salvelinus alpinus) of Thingvallavatn, a classic case of divergence between feeding habitats. We report distinct profiles of gene expression variance for both coding RNAs and microRNAs between the offspring of two contrasting morphs (benthic/limnetic) and their hybrids reared in common conditions and sampled at two key points of cranial development. Gene expression variance in the hybrids is substantially affected by maternal effects, and many genes show biased expression variance toward the limnetic morph. This suggests that canalization, as inferred by gene expression variance, can rapidly diverge in sympatry through multiple gene pathways, which are associated with dominance patterns possibly biasing evolutionary trajectories and mitigating the effects of hybridization on adaptive evolution.
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Affiliation(s)
- Quentin Jean-Baptiste Horta-Lacueva
- Institute of Life and Environmental Sciences, University of Iceland, Reykjavík, Iceland.
- Department of Biology, Lund University, Lund, Sweden.
| | | | - Dagny A V Thorholludottir
- Institute of Life and Environmental Sciences, University of Iceland, Reykjavík, Iceland
- University of Veterinary Medicine Vienna, Institute of Population Genetics, Vienna, Austria
| | - Benedikt Hallgrímsson
- Department of Cell Biology and Anatomy, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Kalina Hristova Kapralova
- Institute of Life and Environmental Sciences, University of Iceland, Reykjavík, Iceland.
- The Institute for Experimental Pathology at Keldur, University of Iceland, Reykjavík, Iceland.
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2
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van Rijssel JC, Moser FN, Mwaiko S, Seehausen O. Strong species structure but weak geographical structure in demersal Lake Victoria cichlids. Ecol Evol 2022; 12:e9669. [PMID: 36582774 PMCID: PMC9790821 DOI: 10.1002/ece3.9669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 12/05/2022] [Accepted: 12/09/2022] [Indexed: 12/27/2022] Open
Abstract
Studying phenotypic and genetic differentiation between very young species can be very informative with regard to learning about processes of speciation. Identifying and characterizing genetic species structure and distinguishing it from spatial genetic structure within a species is a prerequisite for this and is often not given sufficient attention. Young radiations of cichlid fish are classical speciation study systems. However, it is only during the past decade that population genomics based on next-generation sequencing has begun to provide the power to resolve species and distinguish speciation from spatial population structure for the youngest of these radiations. The Lake Victoria haplochromine cichlids constitute the youngest large cichlid fish radiation, probably <20,000 years old. Earlier work showed that communities of rocky reef cichlids are composed of many reciprocally monophyletic species despite their very recent origins. Here, we build on this work by studying assemblages of offshore demersal cichlids, adding analyses of within-species spatial structure to the sympatric species structure. We sampled seven multispecies communities along a 6-km-long transect from one side of the Mwanza Gulf to the other side. We investigated whether phenotypically diagnosed putative species are reciprocally monophyletic and whether such monophyly is stable across species geographic ranges. We show that all species are genetically strongly differentiated in sympatry, that they are reciprocally monophyletic, and that monophyly is stable across distribution ranges. We found significant differentiation between geographically distinct populations in two species, but no or weak isolation by distance. We further found subtle but significant morphological differences between all species and a linear relationship between genomic and morphological distance which suggests that differences in morphology begin to accumulate after speciation has already affected genome-wide restrictions of gene flow.
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Affiliation(s)
- Jacco C. van Rijssel
- Department of Fish Ecology & EvolutionEAWAG Centre for Ecology, Evolution and BiogeochemistryKastanienbaumSwitzerland,Institute of Ecology and Evolution, Aquatic EcologyUniversity of BernBernSwitzerland,Wageningen Marine ResearchWageningen UniversityIJmuidenThe Netherlands
| | - Florian N. Moser
- Department of Fish Ecology & EvolutionEAWAG Centre for Ecology, Evolution and BiogeochemistryKastanienbaumSwitzerland,Institute of Ecology and Evolution, Aquatic EcologyUniversity of BernBernSwitzerland
| | - Salome Mwaiko
- Department of Fish Ecology & EvolutionEAWAG Centre for Ecology, Evolution and BiogeochemistryKastanienbaumSwitzerland,Institute of Ecology and Evolution, Aquatic EcologyUniversity of BernBernSwitzerland
| | - Ole Seehausen
- Department of Fish Ecology & EvolutionEAWAG Centre for Ecology, Evolution and BiogeochemistryKastanienbaumSwitzerland,Institute of Ecology and Evolution, Aquatic EcologyUniversity of BernBernSwitzerland
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3
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An Overview of Interlocation Sexual Shape Dimorphism in Caquetaia kraussi (Perciformes: Cichlidae) A Geometric Morphometric Approach. FISHES 2022. [DOI: 10.3390/fishes7040146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
C. kraussii is an endemic fish species from Colombia and Venezuela and represents a valuable food resource for local human communities. Due to its economic importance, the management and captive breeding of this species are of special interest. However, the anatomical similarities between sexes have been a problem for visual identification. It is also important to indicate that C. kraussii has cryptic morphological behavior between sexes, a topic that has been one of the main problems for the implementation of management plans. The following research studied individuals from three different localities along the Canal del Dique, Bolívar Department in Colombia, in which the body shape of C. kraussii was analyzed using geometric morphometric analysis. The analyses detected the presence of intralocality sexual dimorphism in two of the three localities analyzed, showing a low morphological variability among males, presenting conserved body shape, as well as a greater morphological disparity among females. This sexual shape dimorphism may be associated with the environmental variation among different locations. These results suggest the presence of two evolutionary forces acting asymmetrically between the sexes of C. kraussii, with males mostly subject to sexual selection pressure, while females are mainly subject to environmental pressures.
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4
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Feller AF, Seehausen O. Genetic architecture of adaptive radiation across two trophic levels. Proc Biol Sci 2022; 289:20220377. [PMID: 35506225 PMCID: PMC9065965 DOI: 10.1098/rspb.2022.0377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Evolution of trophic diversity is a hallmark of adaptive radiation. Yet, transitions between carnivory and herbivory are rare in young adaptive radiations. Haplochromine cichlid fish of the African Great Lakes are exceptional in this regard. Lake Victoria was colonized by an insectivorous generalist and in less than 20 000 years, several clades of specialized herbivores evolved. Carnivorous versus herbivorous lifestyles in cichlids require many different adaptations in functional morphology, physiology and behaviour. Ecological transitions in either direction thus require many traits to change in a concerted fashion, which could be facilitated if genomic regions underlying these traits were physically linked or pleiotropic. However, linkage/pleiotropy could also constrain evolvability. To investigate components of the genetic architecture of a suite of traits that distinguish invertivores from algae scrapers, we performed quantitative trait locus (QTL) mapping using a second-generation hybrid cross. While we found indications of linkage/pleiotropy within trait complexes, QTLs for distinct traits were distributed across several unlinked genomic regions. Thus, a mixture of independently segregating variation and some pleiotropy may underpin the rapid trophic transitions. We argue that the emergence and maintenance of associations between the different genomic regions underpinning co-adapted traits that evolved and persist against some gene flow required reproductive isolation.
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Affiliation(s)
- Anna F. Feller
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland,Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry (CEEB), Eawag Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland
| | - Ole Seehausen
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland,Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry (CEEB), Eawag Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland
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5
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Jin B, Barbash DA, Castillo DM. Divergent selection on behavioural and chemical traits between reproductively isolated populations of Drosophila melanogaster. J Evol Biol 2022; 35:693-707. [PMID: 35411988 PMCID: PMC9320809 DOI: 10.1111/jeb.14007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 03/17/2022] [Accepted: 03/21/2022] [Indexed: 11/29/2022]
Abstract
Speciation is driven by traits that can act to prevent mating between nascent lineages, including male courtship and female preference for male traits. Mating barriers involving these traits evolve quickly because there is strong selection on males and females to maximize reproductive success, and the tight co-evolution of mating interactions can lead to rapid diversification of sexual behaviour. Populations of Drosophila melanogaster show strong asymmetrical reproductive isolation that is correlated with geographic origin. Using strains that capture natural variation in mating traits, we ask two key questions: which specific male traits are females selecting, and are these traits under divergent sexual selection? These questions have proven extremely challenging to answer, because even in closely related lineages males often differ in multiple traits related to mating behaviour. We address these questions by estimating selection gradients for male courtship and cuticular hydrocarbons for two different female genotypes. We identify specific behaviours and particular cuticular hydrocarbons that are under divergent sexual selection and could potentially contribute to premating reproductive isolation. Additionally, we report that a subset of these traits are plastic; males adjust these traits based on the identity of the female genotype they interact with. These results suggest that even when male courtship is not fixed between lineages, ongoing selection can act on traits that are important for reproductive isolation.
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Affiliation(s)
- Bozhou Jin
- Department of Molecular Biology and GeneticsCornell UniversityIthacaNew YorkUSA
| | - Daniel A. Barbash
- Department of Molecular Biology and GeneticsCornell UniversityIthacaNew YorkUSA
| | - Dean M. Castillo
- Department of BiologyUniversity of Nebraska at OmahaOmahaNebraskaUSA
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6
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Clark MI, Bradburd GS, Akopyan M, Vega A, Rosenblum EB, Robertson JM. Genetic isolation by distance underlies colour pattern divergence in red-eyed treefrogs (Agalychnis callidryas). Mol Ecol 2022; 31:1666-1681. [PMID: 35034406 PMCID: PMC8923152 DOI: 10.1111/mec.16350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 10/21/2021] [Accepted: 01/04/2022] [Indexed: 10/19/2022]
Abstract
Investigating the spatial distribution of genetic and phenotypic variation can provide insights into the evolutionary processes that shape diversity in natural systems. We characterized patterns of genetic and phenotypic diversity to learn about drivers of colour-pattern diversification in red-eyed treefrogs (Agalychnis callidryas) in Costa Rica. Along the Pacific coast, red-eyed treefrogs have conspicuous leg colour patterning that transitions from orange in the north to purple in the south. We measured phenotypic variation of frogs, with increased sampling at sites where the orange-to-purple transition occurs. At the transition zone, we discovered the co-occurrence of multiple colour-pattern morphs. To explore possible causes of this variation, we generated a single nucleotide polymorphism data set to analyse population genetic structure, measure genetic diversity and infer the processes that mediate genotype-phenotype dynamics. We investigated how patterns of genetic relatedness correspond to individual measures of colour pattern along the coast, including testing for the role of hybridization in geographic regions where orange and purple phenotypic groups co-occur. We found no evidence that colour-pattern polymorphism in the transition zone arose through recent hybridization. Instead, a strong pattern of genetic isolation by distance indicates that colour-pattern variation was either retained through other processes such as ancestral colour polymorphisms or ancient secondary contact, or else it was generated by novel mutations. We found that phenotype changes along the Pacific coast more than would be expected based on genetic divergence and geographic distance alone. Combined, our results suggest the possibility of selective pressures acting on colour pattern at a small geographic scale.
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Affiliation(s)
- Meaghan I. Clark
- Department of Biology, California State University Northridge, Northridge, California, USA,Department of integrative Biology, Ecology, Evolution and Behavior Program, Michigan State University, East Lansing, Michigan, USA,W.K. Kellogg Biological Station, Michigan State University, Hickory Corners, Michigan, USA
| | - Gideon S. Bradburd
- Department of integrative Biology, Ecology, Evolution and Behavior Program, Michigan State University, East Lansing, Michigan, USA
| | - Maria Akopyan
- Department of Biology, California State University Northridge, Northridge, California, USA,Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, USA
| | | | - Erica Bree Rosenblum
- Department of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, California, USA,Museum of Vertebrate Zoology, University of California Berkeley, Berkeley, California, USA
| | - Jeanne M. Robertson
- Department of Biology, California State University Northridge, Northridge, California, USA,Department of Herpetology, Natural History Museum of Los Angeles County, Los Angeles, California, USA
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7
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Evaluation of Age-Dependent Changes in the Coloration of Male Killifish Nothobranchius Guentheri Using New Photoprocessing Methods. BIOLOGY 2022; 11:biology11020205. [PMID: 35205071 PMCID: PMC8869725 DOI: 10.3390/biology11020205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/25/2022] [Accepted: 01/26/2022] [Indexed: 11/23/2022]
Abstract
Simple Summary This paper proposes a new methodology for evaluating fish coloration, which allows us to identify differences in the intensity of coloration of specific areas of the body. Changes in fish coloration occur during growth and under the influence of environmental factors. Male fish belonging to the family Nothobranchius are characterized by extremely diverse coloration, depending on the age of the fish, environmental factors, and social hierarchical status. As the lifespan of this genus of fish is very short (12–14 months), studies on age-dependent changes are possible. In this study, we demonstrate correlations between the coloration of particular body zones of male Nothobranchius guentheri and age using new photofixation methods and image processing software. This methodology can be applied to other fish with unique coloration patterns, for example, family Cichlidae and order Cyprinodontiformes. Abstract Fish as model objects have found wide applications in biology and fundamental medicine and allow studies of behavioral and physiological responses to various environmental factors. Representatives of the genus Nothobranchius are one of the most convenient objects for such studies. Male fish belonging to the family Nothobranchiidae are characterized by extremely diverse coloration, which constantly changes, depending on the age of the fish, environmental factors, and social hierarchical status. These fish species are characterized by a short life cycle, which allows changes in coloration, an indicator of the ontogenesis stage, to be estimated. Existing methods of fish color assessments do not allow the intensity of coloration of particular body zones to be clearly differentiated. In the present study, we suggest a method of two-factor assessment of specific fish body zones using modified methods of photofixation and image processing software. We describe the protocol of the method and the results of its application to different-aged groups of male Nothobranchius guentheri. The coloration of selected areas (i.e., red spot on the gill cover (RSGC), black border on the caudal fin (BBCF), and white border on the dorsal fin (WBDF)) differed significantly according to the size and age of the fish (p < 0.05). The data obtained suggest that N. guentheri can be a model for studying aging by the intensity of body coloration in males.
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8
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Rohner PT. Secondary Sexual Trait Melanization in “Black” Scavenger Flies: Nutritional Plasticity and Its Evolution. Am Nat 2022; 199:168-177. [DOI: 10.1086/717051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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9
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St John CA, Buser TJ, Kee VE, Kirilchik S, Bogdanov B, Neely D, Sandel M, Aguilar A. Diversification along a benthic to pelagic gradient contributes to fish diversity in the world's largest lake (Lake Baikal, Russia). Mol Ecol 2021; 31:238-251. [PMID: 34614231 DOI: 10.1111/mec.16209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 09/03/2021] [Accepted: 09/28/2021] [Indexed: 12/16/2022]
Abstract
Insights into the generation of diversity in both plants and animals have relied heavily on studying speciation in adaptive radiations. Russia's Lake Baikal has facilitated a putative adaptive radiation of cottid fishes (sculpins), some of which are highly specialized to inhabit novel niches created by the lake's unique geology and ecology. Here, we test evolutionary relationships and novel morphological adaptation in a piece of this radiation: the Baikal cottid genus, Cottocomephorus, a morphologically derived benthopelagic genus of three described species. We used a combination of mitochondrial DNA and restriction site associated DNA sequencing from all Cottocomephorus species. Analysis of mitochondrial cytochrome b haplotypes was only able to two resolve two lineages: C. grewingkii and C. comephoroides/inermis. Phylogenetic inference, principal component analysis, and faststructure of genome-wide SNPs uncovered three lineages within Cottocomephorus: C. comephoroides, C. inermis and C. grewingkii. We found recent divergence and admixture between C. comephoroides and C. inermis and deep divergence between these two species and C. grewingkii. Contrasting other fish radiations, we found no evidence of ancient hybridization among Cottocomephorus species. Digital morphology revealed highly derived pelagic phenotypes that reflect divergence by specialization to the benthopelagic niche in Cottocomephorus. Among Cottocomephorus species, we found evidence of ongoing adaptation to the pelagic zone. This pattern highlights the importance of speciation along a benthic-pelagic gradient seen in Cottocomephorus and across other adaptive fish radiations.
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Affiliation(s)
- Carl A St John
- Department of Biological Science, California State University Los Angeles, Los Angeles, California, USA
| | - Thaddaeus J Buser
- Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon, USA
| | - Victoria E Kee
- Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon, USA
| | - Sergei Kirilchik
- Limnological Institute, Russian Academy of Sciences, Irkutsk, Russia
| | - Bakhtiar Bogdanov
- Limnological Institute, Russian Academy of Sciences, Irkutsk, Russia
| | - David Neely
- Tennessee Aquarium Conservation Institute, Chattanooga, Tennessee, USA
| | - Michael Sandel
- Biological and Environmental Sciences, University of Western Alabama, Livingston, Alabama, USA
| | - Andres Aguilar
- Department of Biological Science, California State University Los Angeles, Los Angeles, California, USA
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10
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Domínguez-Castanedo O, Muñoz-Campos TM, Valdesalici S, Valdez-Carbajal S, Passos C. Male mate choice in the annual killifish Millerichthys robustus and its relationship with female polymorphism, size and fecundity. ETHOL ECOL EVOL 2021. [DOI: 10.1080/03949370.2021.1883121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Omar Domínguez-Castanedo
- Departamento El Hombre y su Ambiente, Universidad Autónoma Metropolitana, Unidad Xochimilco, Calzada del Hueso No. 1100, Col. Villa Quietud, Coyoacán, CDMX 04906, México
| | - Tessy M. Muñoz-Campos
- Licenciatura En Biología, Universidad Autónoma Metropolitana, Unidad Xochimilco, Calzada del Hueso No. 1100, Col. Villa Quietud, Coyoacán, CDMX 04906, México
| | - Stefano Valdesalici
- Associazione Italiana Killifish, Via Cà Bertacchi 5, 42030 Viano (Reggio Emilia), Italy
| | - Sharon Valdez-Carbajal
- Licenciatura En Biología, Universidad Autónoma Metropolitana, Unidad Xochimilco, Calzada del Hueso No. 1100, Col. Villa Quietud, Coyoacán, CDMX 04906, México
| | - Carlos Passos
- Sección de Etología, Facultad de Ciencias, Universidad de la Republica, Iguá 4225, Montevideo 11400, Uruguay
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11
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Gorta SBZ, Alting B, Claridge A, Henderson T. Apparent piebald variants in quolls (Dasyurus): examples of three recent cases in the spotted-tailed quoll Dasyurus maculatus. AUSTRALIAN MAMMALOGY 2021. [DOI: 10.1071/am20058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Pelage patterning plays an important role in animal behaviour. Variation in pelage patterns can change with pigment distribution and quantity in individuals. We present three cases of apparent piebaldism – a condition where the body is patchily unpigmented – in the spotted-tailed quoll Dasyurus maculatus. Using a comprehensive dataset of historical descriptions (from Dunlop et al. 2020), we conclude that these cases represent the first description of this phenotype in the genus Dasyurus, but acknowledge capture and testing of these individuals is required to be certain of the cause. Little is known about the implications of pelage patterning in quoll species and further investigation is required to understand the evolutionary and functional role of unaffected and unpigmented variants.
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12
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Rometsch SJ, Torres-Dowdall J, Meyer A. Evolutionary dynamics of pre- and postzygotic reproductive isolation in cichlid fishes. Philos Trans R Soc Lond B Biol Sci 2020; 375:20190535. [PMID: 32654645 DOI: 10.1098/rstb.2019.0535] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Cichlid fishes are exceptionally species-rich, speciated at explosive rates and, hence, are a model system in speciation research. Yet, their reproductive isolating barriers have, so far, not been comprehensively studied. Here, we review current knowledge on pre- and postzygotic mechanisms in cichlids. While premating isolation is the norm in cichlids, its strength varies across lineages and with the geographical setting. Moreover, manipulations of ambient conditions tended to reduce assortative mating among closely related species, suggesting that premating isolation in cichlids is often fragile and context dependent. The observed lack of complete reproductive isolation is supported by past and present hybridization events that have contributed to diversity by creating novel allelic combinations. On the other hand, our meta-analysis highlights that intrinsic postzygotic isolation might accumulate faster than assumed. Mild forms of genetic incompatibilities, such as sex ratio distortion, can already be observed among closely related species. Therefore, cessation of gene flow by strong reproductive isolation in cichlids requires a combination of premating prezygotic isolation supplemented with intrinsic and extrinsic postzygotic barriers. Further, we suggest crucial next steps to improve our knowledge about reproductive barriers in cichlids to understand the evolutionary dynamics of pre- and postzygotic isolation mechanisms during adaptive radiations. This article is part of the theme issue 'Towards the completion of speciation: the evolution of reproductive isolation beyond the first barriers'.
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Affiliation(s)
- Sina J Rometsch
- Department of Biology, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany
| | - Julián Torres-Dowdall
- Department of Biology, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany
| | - Axel Meyer
- Department of Biology, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany
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13
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Nyalungu NP, Couldridge V. Female mate choice and species recognition between two closely related cichlid fish of Lake Malawi, Metriaclima estherae and M. callainos. JOURNAL OF FISH BIOLOGY 2020; 97:75-82. [PMID: 32291745 DOI: 10.1111/jfb.14327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/13/2020] [Accepted: 03/15/2020] [Indexed: 06/11/2023]
Abstract
Cichlids are one of the most diverse and colourful groups of freshwater fishes in the world. Despite much investigation, the factors that promote speciation in these fishes are still uncertain. However, previous studies suggest that sexual selection on male colour is one of the main drivers of speciation among these fishes. Metriaclima estherae is a polymorphic cichlid species from Lake Malawi, and thus provides an ideal model for the investigation of the importance of colour as a species recognition cue. M. callainos is a closely related and morphologically similar species, with male colour pattern very similar to that of M. estherae. We tested female choice by giving females of the two species a choice between conspecific and heterospecific males in the presence and absence of visual (colour) and chemical cues. The results show that females of M. callainos were able to reliably recognize conspecific males, even when colour was eliminated as a cue. However, females of M. estherae did not prefer conspecific males, although they were able to discriminate between red and blue conspecific colour morphs by using chemical cues. These results suggest that species recognition cues may differ even among closely related species of cichlid fish, and that female preferences for male coloration may be weak in certain species.
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Affiliation(s)
- Nonhlanhla P Nyalungu
- Department of Biodiversity and Conservation Biology, University of the Western Cape, Bellville, South Africa
| | - Vanessa Couldridge
- Department of Biodiversity and Conservation Biology, University of the Western Cape, Bellville, South Africa
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14
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Schneider RF, Rometsch SJ, Torres-Dowdall J, Meyer A. Habitat light sets the boundaries for the rapid evolution of cichlid fish vision, while sexual selection can tune it within those limits. Mol Ecol 2020; 29:1476-1493. [PMID: 32215986 DOI: 10.1111/mec.15416] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/07/2020] [Accepted: 03/16/2020] [Indexed: 12/30/2022]
Abstract
Cichlid fishes' famous diversity in body coloration is accompanied by a highly diverse and complex visual system. Although cichlids possess an unusually high number of seven cone opsin genes, they express only a subset of these during their ontogeny, accounting for their astonishing interspecific variation in visual sensitivities. Much of this diversity is thought to have been shaped by natural selection as cichlids inhabit a variety of habitats with distinct light environments. Also, sexual selection might have contributed to the observed visual diversity, and sexual dimorphism in coloration potentially co-evolved with sexual dimorphism in opsin expression. We investigated sex-specific opsin expression of several cichlids from Africa and the Neotropics and collected and integrated data sets on sex-specific body coloration, species-specific visual sensitivities, lens transmission and habitat light properties for some of them. We comparatively analysed this wide range of molecular and ecological data, illustrating how integrative approaches can address specific questions on the factors and mechanisms driving diversification, and the evolution of cichlid vision in particular. We found that both sexes expressed opsins at the same levels-even in sexually dimorphic cichlid species-which argues against coevolution of sexual dichromatism and differences in sex-specific visual sensitivity. Rather, a combination of environmental light properties and body coloration shaped the diversity in spectral sensitivities among cichlids. We conclude that although cichlids are particularly colourful and diverse and often sexually dimorphic, it would appear that natural rather than sexual selection is a more powerful force driving visual diversity in this hyperdiverse lineage.
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Affiliation(s)
- Ralph F Schneider
- Lehrstuhl für Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, Konstanz, Germany.,Department of Marine Ecology, GEOMAR, Kiel, Germany
| | - Sina J Rometsch
- Lehrstuhl für Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, Konstanz, Germany
| | - Julián Torres-Dowdall
- Lehrstuhl für Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, Konstanz, Germany
| | - Axel Meyer
- Lehrstuhl für Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, Konstanz, Germany
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15
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Feller AF, Haesler MP, Peichel CL, Seehausen O. Genetic architecture of a key reproductive isolation trait differs between sympatric and non-sympatric sister species of Lake Victoria cichlids. Proc Biol Sci 2020; 287:20200270. [PMID: 32259470 PMCID: PMC7209058 DOI: 10.1098/rspb.2020.0270] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
One hallmark of the East African cichlid radiations is the rapid evolution of reproductive isolation that is robust to full sympatry of many closely related species. Theory predicts that species persistence and speciation in sympatry with gene flow are facilitated if loci of large effect or physical linkage (or pleiotropy) underlie traits involved in reproductive isolation. Here, we investigate the genetic architecture of a key trait involved in behavioural isolation, male nuptial coloration, by crossing two sister species pairs of Lake Victoria cichlids of the genus Pundamilia and mapping nuptial coloration in the F2 hybrids. One is a young sympatric species pair, representative of an axis of colour motif differentiation, red-dorsum versus blue, that is highly recurrent in closely related sympatric species. The other is a species pair representative of colour motifs, red-chest versus blue, that are common in allopatric but uncommon in sympatric closely related species. We find significant quantitative trait loci (QTLs) with moderate to large effects (some overlapping) for red and yellow in the sympatric red-dorsum × blue cross, whereas we find no significant QTLs in the non-sympatric red-chest × blue cross. These findings are consistent with theory predicting that large effect loci or linkage/pleiotropy underlying mating trait differentiation could facilitate speciation and species persistence with gene flow in sympatry.
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Affiliation(s)
- Anna F Feller
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland.,Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
| | - Marcel P Haesler
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland.,Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
| | - Catherine L Peichel
- Division of Evolutionary Ecology, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
| | - Ole Seehausen
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland.,Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
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16
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Watts JC, Flynn A, Tenhumberg B, Hebets EA. Contemporary sexual selection does not explain variation in male display traits among populations. Evolution 2019; 73:1927-1940. [PMID: 31343745 DOI: 10.1111/evo.13808] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 07/12/2019] [Accepted: 07/17/2019] [Indexed: 11/30/2022]
Abstract
Sexual selection is widely hypothesized to facilitate the evolution of reproductive isolation through divergence in sexual traits and sexual trait preferences among populations. However, direct evidence of divergent sexual selection causing intraspecific trait divergence remains limited. Using the wolf spider Schizocosa crassipes, we characterized patterns of female mate choice within and among geographic locations and related those patterns to geographic variation in male display traits to test whether divergent sexual selection caused by mate choice explains intraspecific trait variation. We found evidence of phenotypic selection on male behavior arising from female mate choice, but no evidence that selection varied among locations. Only those suites of morphological and behavioral traits that did not influence mate choice varied geographically. These results are inconsistent with ongoing divergent sexual selection underlying the observed intraspecific divergence in male display traits. These findings align with theory on the potentially restrictive conditions under which divergent sexual selection may persist, and suggest that long-term studies capable of detecting periodic or transient divergent sexual selection will be critical to rigorously assess the relative importance of divergent sexual selection in intraspecific trait divergence.
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Affiliation(s)
- J Colton Watts
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, 68588
| | - Allissa Flynn
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, 68588
| | - Brigitte Tenhumberg
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, 68588
| | - Eileen A Hebets
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, 68588
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17
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Atsumi K, Kishida O, Koizumi I. Visual preference of males for conspecific mates in mutually ornamented fish: possible support for the species recognition hypothesis. J ETHOL 2019. [DOI: 10.1007/s10164-019-00610-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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18
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Marcondes RS, Brumfield RT. Fifty shades of brown: Macroevolution of plumage brightness in the Furnariida, a large clade of drab Neotropical passerines. Evolution 2019; 73:704-719. [DOI: 10.1111/evo.13707] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 02/14/2019] [Indexed: 01/06/2023]
Affiliation(s)
- Rafael S. Marcondes
- Museum of Natural Science and Department of Biological Sciences Louisiana State University Baton Rouge Louisiana 70803
| | - Robb T. Brumfield
- Museum of Natural Science and Department of Biological Sciences Louisiana State University Baton Rouge Louisiana 70803
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19
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Zhang JL, Zhang CN, Li EC, Jin MM, Huang MX, Cui W, Lin YY, Shi YJ. Triphenyltin exposure affects mating behaviors and attractiveness to females during mating in male guppies (Poecilia reticulata). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 169:76-84. [PMID: 30423510 DOI: 10.1016/j.ecoenv.2018.11.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 11/01/2018] [Accepted: 11/03/2018] [Indexed: 06/09/2023]
Abstract
The impacts of triphenyltin (TPT) on ecological health have been of great concern due to their widespread use and ubiquity in aquatic ecosystems. However, little is known about the effects of TPT on the reproductive behaviors of fishes. Therefore, the present study was conducted to investigate the effects of TPT at environmentally relevant concentrations (0, 1 and 10 ng Sn/L) on the mating behaviors and the attractiveness to females during mating in male guppies (Poecilia reticulata). The results showed that TPT exposure disturbed the mating behaviors; the TPT-exposed male fish performed more sneaking attempts, but no changes in sigmoid courtship were displayed. The increases in sneaking attempts might be related to increases in testosterone levels induced by TPT exposure. In the context of a competing male, the TPT-exposed males were less attractive to females during mating. The decreases in attractiveness might be related to decreases in carotenoid-based coloration, shown as decreases in caudal fin redness values and skin carotenoid contents. In addition, TPT-induced total antioxidant capacities, the activities of superoxide dismutase and catalase, and the contents of malondialdehyde in liver and intestinal tissues indicated increases in oxidative stress. Both oxidative stress and coloration are linked to carotenoids. Thus, we speculated that the TPT-exposed males might use carotenoids to cope with increases in oxidative stress at the expense of carotenoid-based coloration. The disruption of mating behaviors and the decrease in attractiveness to females in male fish could result in reproductive failure. The present study underscores the importance of using behavioral tests as a sensitive tool in assessing the impact of pollutants present in aquatic environments.
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Affiliation(s)
- Ji-Liang Zhang
- Laboratory of Aquatic Environment and Animal Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, China.
| | - Chun-Nuan Zhang
- Laboratory of Aquatic Environment and Animal Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, China
| | - Er-Chao Li
- College of Ocean Sciences, Hainan University, Haikou, Hainan, China
| | - Miao-Miao Jin
- Laboratory of Aquatic Environment and Animal Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, China
| | - Mao-Xian Huang
- Laboratory of Aquatic Environment and Animal Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, China; College of Ocean Sciences, Hainan University, Haikou, Hainan, China
| | - Wei Cui
- Laboratory of Aquatic Environment and Animal Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, China
| | - Yang-Yang Lin
- Laboratory of Aquatic Environment and Animal Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, China
| | - Ya-Jun Shi
- Laboratory of Aquatic Environment and Animal Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, China
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20
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van Rijssel JC, Moser FN, Frei D, Seehausen O. Prevalence of disruptive selection predicts extent of species differentiation in Lake Victoria cichlids. Proc Biol Sci 2019; 285:rspb.2017.2630. [PMID: 29367400 DOI: 10.1098/rspb.2017.2630] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 01/02/2018] [Indexed: 11/12/2022] Open
Abstract
Theory suggests that speciation with gene flow is most likely when both sexual and ecological selection are divergent or disruptive. Divergent sexual and natural selection on the visual system have been demonstrated before in sympatric, morphologically similar sister species of Lake Victoria cichlids, but this does not explain the subtle morphological differences between them. To investigate the significance of natural selection on morphology during speciation, we here ask whether the prevalence of disruptive ecological selection differs between sympatric sister species that are at different stages of speciation. Some of our species pairs do (Pundamilia) and others do not (Neochromis) differ distinctively in sexually selected male nuptial coloration. We find that (i) evidence for disruptive selection, and for evolutionary response to it, is prevalent in traits that are differentiated between sister species; (ii) prevalence of both predicts the extent of genetic differentiation; and (iii) genetic differentiation is weaker in species pairs with conserved male nuptial coloration. Our results speak to the existence of two different mechanisms of speciation with gene flow: speciation mainly by sexual selection tightly followed by ecological character displacement in some cases and speciation mainly by divergent ecological selection in others.
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Affiliation(s)
- Jacco C van Rijssel
- Department of Fish Ecology and Evolution, EAWAG Center of Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland .,Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Florian N Moser
- Department of Fish Ecology and Evolution, EAWAG Center of Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland.,Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - David Frei
- Department of Fish Ecology and Evolution, EAWAG Center of Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland.,Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, EAWAG Center of Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland .,Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
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21
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Robertson JM, Nava R, Vega A, Kaiser K. Uniformity in premating reproductive isolation along an intraspecific cline. Curr Zool 2018; 64:641-652. [PMID: 30323843 PMCID: PMC6178793 DOI: 10.1093/cz/zox066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 11/10/2017] [Indexed: 11/17/2022] Open
Abstract
Premating reproductive isolation (RI) may reduce gene flow across populations that have differentiated in traits important for mate choice. Examining RI across genetic and phenotypic clines can inform the fundamental evolutionary processes that underlie population and lineage differentiation. We conducted female mate-choice studies across an intraspecific red-eyed treefrog cline in Costa Rica and Panama with 2 specific aims: (1) to characterize RI across the cline and examine the relationship between premating RI and genetic and phenotypic distance and (2) to evaluate our results within a broader evolutionary and taxonomic perspective through examination of other RI studies. We found that female red-eyed treefrogs prefer local males relative to non-local males, indicating that some premating RI has evolved in this system, but that preference strength is not associated with phenotypic or geographic distance. Our analysis of 65 other studies revealed no clear pattern between the strength of RI and geographic distribution (allopatry, parapatry, cline) or phenotypic distance, but revealed extreme variation and overlap in levels of intra- and interspecific levels of RI. This work contributes to a growing body of literature that examines intraspecific RI across a cline to understand the selective processes that shape evolutionary patterns at the earliest stages of divergence.
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Affiliation(s)
- Jeanne Marie Robertson
- Department of Biology, California State University, Northridge, 18111 Nordhoff Street, Northridge, CA, USA.,Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA, USA
| | - Roman Nava
- Department of Biology, California State University, Northridge, 18111 Nordhoff Street, Northridge, CA, USA.,Department of Biology, San Diego State University, 5500 Campanile Drive, San Diego, CA, USA
| | - Andrés Vega
- AMBICOR, 400 E., 75 S., 75 E. de la Municipalidad de Tibas, Tibas, Costa Rica
| | - Kristine Kaiser
- Department of Biology, California State University, Northridge, 18111 Nordhoff Street, Northridge, CA, USA.,Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA, USA
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22
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Meier JI, Marques DA, Wagner CE, Excoffier L, Seehausen O. Genomics of Parallel Ecological Speciation in Lake Victoria Cichlids. Mol Biol Evol 2018; 35:1489-1506. [DOI: 10.1093/molbev/msy051] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Joana Isabel Meier
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Computational and Molecular Population Genetics (CMPG), Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - David Alexander Marques
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Computational and Molecular Population Genetics (CMPG), Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Catherine Elise Wagner
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Laurent Excoffier
- Computational and Molecular Population Genetics (CMPG), Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Ole Seehausen
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
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23
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Lind O, Henze MJ, Kelber A, Osorio D. Coevolution of coloration and colour vision? Philos Trans R Soc Lond B Biol Sci 2018; 372:rstb.2016.0338. [PMID: 28533455 DOI: 10.1098/rstb.2016.0338] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/29/2017] [Indexed: 11/12/2022] Open
Abstract
The evolutionary relationship between signals and animal senses has broad significance, with potential consequences for speciation, and for the efficacy and honesty of biological communication. Here we outline current understanding of the diversity of colour vision in two contrasting groups: the phylogenetically conservative birds, and the more variable butterflies. Evidence for coevolution of colour signals and vision exists in both groups, but is limited to observations of phenotypic differences between visual systems, which might be correlated with coloration. Here, to illustrate how one might interpret the evolutionary significance of such differences, we used colour vision modelling based on an avian eye to evaluate the effects of variation in three key characters: photoreceptor spectral sensitivity, oil droplet pigmentation and the proportions of different photoreceptor types. The models predict that physiologically realistic changes in any one character will have little effect, but complementary shifts in all three can substantially affect discriminability of three types of natural spectra. These observations about the adaptive landscape of colour vision may help to explain the general conservatism of photoreceptor spectral sensitivities in birds. This approach can be extended to other types of eye and spectra to inform future work on coevolution of coloration and colour vision.This article is part of the themed issue 'Animal coloration: production, perception, function and application'.
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Affiliation(s)
- Olle Lind
- Department of Philosophy, Cognitive Science, Helgonavägen 3, 22362 Lund, Sweden
| | - Miriam J Henze
- Queensland Brain Institute, University of Queensland, St Lucia, Queensland 4072, Australia
| | - Almut Kelber
- Department of Biology, Lund Vision Group, Lund University, Sölvegatan 35, 22362 Lund, Sweden
| | - Daniel Osorio
- School of Life Sciences, John Maynard Smith Building, University of Sussex, Falmer, BN1 9QG, UK
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24
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Belliure J, Fresnillo B, Cuervo JJ. Male mate choice based on female coloration in a lizard: the role of a juvenile trait. Behav Ecol 2018. [DOI: 10.1093/beheco/ary005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Affiliation(s)
- Josabel Belliure
- Department of Life Sciences, Ecology Section, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - Belén Fresnillo
- Department of Life Sciences, Ecology Section, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - José J Cuervo
- Department of Evolutionary Ecology, Museo Nacional de Ciencias Naturales (CSIC), Madrid, Spain
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25
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Svensson O, Woodhouse K, van Oosterhout C, Smith A, Turner GF, Seehausen O. The genetics of mate preferences in hybrids between two young and sympatric Lake Victoria cichlid species. Proc Biol Sci 2018; 284:rspb.2016.2332. [PMID: 28202807 DOI: 10.1098/rspb.2016.2332] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 01/24/2017] [Indexed: 12/29/2022] Open
Abstract
The genetic architecture of mate preferences is likely to affect significant evolutionary processes, including speciation and hybridization. Here, we investigate laboratory hybrids between a pair of sympatric Lake Victoria cichlid fish species that appear to have recently evolved from a hybrid population between similar predecessor species. The species demonstrate strong assortative mating in the laboratory, associated with divergent male breeding coloration (red dorsum versus blue). We show in a common garden experiment, using DNA-based paternity testing, that the strong female mate preferences among males of the two species are fully recovered in a large fraction of their F2 hybrid generation. Individual hybrid females often demonstrated consistent preferences in multiple mate choice trials (more than or equal to five) across a year or more. This result suggests that female mate preference is influenced by relatively few major genes or genomic regions. These preferences were not changed by experience of a successful spawning event with a male of the non-preferred species in a no-choice single-male trial. We found no evidence for imprinting in the F2 hybrids, although the F1 hybrid females may have been imprinted on their mothers. We discuss this nearly Mendelian inheritance of consistent innate mate preferences in the context of speciation theory.
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Affiliation(s)
- Ola Svensson
- School of Environmental Sciences, University of Hull, Hull HU6 7RX, UK
| | - Katie Woodhouse
- School of Environmental Sciences, University of Hull, Hull HU6 7RX, UK
| | | | - Alan Smith
- School of Environmental Sciences, University of Hull, Hull HU6 7RX, UK
| | - George F Turner
- School of Environmental Sciences, University of Hull, Hull HU6 7RX, UK
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Center for Ecology, Evolution and Biogeochemistry, Seestrasse 79, 6047 Kastanienbaum, Switzerland.,Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland
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26
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Wright DS, Rietveld E, Maan ME. Developmental effects of environmental light on male nuptial coloration in Lake Victoria cichlid fish. PeerJ 2018; 6:e4209. [PMID: 29312830 PMCID: PMC5756450 DOI: 10.7717/peerj.4209] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 12/09/2017] [Indexed: 11/29/2022] Open
Abstract
Background Efficient communication requires that signals are well transmitted and perceived in a given environment. Natural selection therefore drives the evolution of different signals in different environments. In addition, environmental heterogeneity at small spatial or temporal scales may favour phenotypic plasticity in signaling traits, as plasticity may allow rapid adjustment of signal expression to optimize transmission. In this study, we explore signal plasticity in the nuptial coloration of Lake Victoria cichlids, Pundamilia pundamilia and Pundamilia nyererei. These two species differ in male coloration, which mediates species-assortative mating. They occur in adjacent depth ranges with different light environments. Given the close proximity of their habitats, overlapping at some locations, plasticity in male coloration could contribute to male reproductive success but interfere with reproductive isolation. Methods We reared P. pundamilia, P. nyererei, and their hybrids under light conditions mimicking the two depth ranges in Lake Victoria. From photographs, we quantified the nuptial coloration of males, spanning the entire visible spectrum. In experiment 1, we examined developmental colour plasticity by comparing sibling males reared in each light condition. In experiment 2, we assessed colour plasticity in adulthood, by switching adult males between conditions and tracking coloration for 100 days. Results We found that nuptial colour in Pundamilia did respond plastically to our light manipulations, but only in a limited hue range. Fish that were reared in light conditions mimicking the deeper habitat were significantly greener than those in conditions mimicking shallow waters. The species-specific nuptial colours (blue and red) did not change. When moved to the opposing light condition as adults, males did not change colour. Discussion Our results show that species-specific nuptial colours, which are subject to strong divergent selection by female choice, are not plastic. We do find plasticity in green coloration, a response that may contribute to visual conspicuousness in darker, red-shifted light environments. These results suggest that light-environment-induced plasticity in male nuptial coloration in P. pundamilia and P. nyererei is limited and does not interfere with reproductive isolation.
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Affiliation(s)
- Daniel Shane Wright
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, Netherlands
| | - Emma Rietveld
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, Netherlands.,University of Applied Sciences van Hall Larenstein, Leeuwarden, Netherlands
| | - Martine E Maan
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, Netherlands
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27
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Alexander TJ, Vonlanthen P, Seehausen O. Does eutrophication-driven evolution change aquatic ecosystems? Philos Trans R Soc Lond B Biol Sci 2017; 372:rstb.2016.0041. [PMID: 27920386 DOI: 10.1098/rstb.2016.0041] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2016] [Indexed: 01/20/2023] Open
Abstract
Eutrophication increases primary production and changes the relative abundance, taxonomic composition and spatial distribution of primary producers within an aquatic ecosystem. The changes in composition and location of resources alter the distribution and flow of energy and biomass throughout the food web. Changes in productivity also alter the physico-chemical environment, which has further effects on the biota. Such ecological changes influence the direction and strength of natural and sexual selection experienced by populations. Besides altering selection, they can also erode the habitat gradients and/or behavioural mechanisms that maintain ecological separation and reproductive isolation among species. Consequently, eutrophication of lakes commonly results in reduced ecological specialization as well as genetic and phenotypic homogenization among lakes and among niches within lakes. We argue that the associated loss in functional diversity and niche differentiation may lead to decreased carrying capacity and lower resource-use efficiency by consumers. We show that in central European whitefish species radiations, the functional diversity affected by eutrophication-induced speciation reversal correlates with community-wide trophic transfer efficiency (fisheries yield per unit phosphorus). We take this as an example of how evolutionary dynamics driven by anthropogenic environmental change can have lasting effects on biodiversity and ecosystem functioning.This article is part of the themed issue 'Human influences on evolution, and the ecological and societal consequences'.
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Affiliation(s)
- Timothy J Alexander
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland .,Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland
| | - Pascal Vonlanthen
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland.,Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland.,Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland
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28
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Kostyun JL, Moyle LC. Multiple strong postmating and intrinsic postzygotic reproductive barriers isolate florally diverse species of Jaltomata (Solanaceae). Evolution 2017; 71:1556-1571. [PMID: 28432763 PMCID: PMC5502772 DOI: 10.1111/evo.13253] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 03/31/2017] [Indexed: 12/22/2022]
Abstract
Divergence in phenotypic traits often contributes to premating isolation between lineages, but could also promote isolation at postmating stages. Phenotypic differences could directly result in mechanical isolation or hybrids with maladapted traits; alternatively, when alleles controlling these trait differences pleiotropically affect other components of development, differentiation could indirectly produce genetic incompatibilities in hybrids. Here, we determined the strength of nine postmating and intrinsic postzygotic reproductive barriers among 10 species of Jaltomata (Solanaceae), including species with highly divergent floral traits. To evaluate the relative importance of floral trait diversification for the strength of these postmating barriers, we assessed their relationship to floral divergence, genetic distance, geographical context, and ecological differences, using conventional tests and a new linear-mixed modeling approach. Despite close evolutionary relationships, all species pairs showed moderate to strong isolation. Nonetheless, floral trait divergence was not a consistent predictor of the strength of isolation; instead this was best explained by genetic distance, although we found evidence for mechanical isolation in one species, and a positive relationship between floral trait divergence and fruit set isolation across species pairs. Overall, our data indicate that intrinsic postzygotic isolation is more strongly associated with genome-wide genetic differentiation, rather than floral divergence.
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Affiliation(s)
- Jamie L. Kostyun
- Department of Biology, Indiana University, Bloomington, Indiana
47405, USA
| | - Leonie C. Moyle
- Department of Biology, Indiana University, Bloomington, Indiana
47405, USA
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29
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Robertson JM, Greene HW. Bright colour patterns as social signals in nocturnal frogs. Biol J Linn Soc Lond 2017. [DOI: 10.1093/biolinnean/blx021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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30
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Meier JI, Sousa VC, Marques DA, Selz OM, Wagner CE, Excoffier L, Seehausen O. Demographic modelling with whole-genome data reveals parallel origin of similar Pundamilia cichlid species after hybridization. Mol Ecol 2016; 26:123-141. [PMID: 27613570 DOI: 10.1111/mec.13838] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 08/15/2016] [Accepted: 08/22/2016] [Indexed: 01/15/2023]
Abstract
Modes and mechanisms of speciation are best studied in young species pairs. In older taxa, it is increasingly difficult to distinguish what happened during speciation from what happened after speciation. Lake Victoria cichlids in the genus Pundamilia encompass a complex of young species and polymorphic populations. One Pundamilia species pair, P. pundamilia and P. nyererei, is particularly well suited to study speciation because sympatric population pairs occur with different levels of phenotypic differentiation and reproductive isolation at different rocky islands within the lake. Genetic distances between allopatric island populations of the same nominal species often exceed those between the sympatric species. It thus remained unresolved whether speciation into P. nyererei and P. pundamilia occurred once, followed by geographical range expansion and interspecific gene flow in local sympatry, or if the species pair arose repeatedly by parallel speciation. Here, we use genomic data and demographic modelling to test these alternative evolutionary scenarios. We demonstrate that gene flow plays a strong role in shaping the observed patterns of genetic similarity, including both gene flow between sympatric species and gene flow between allopatric populations, as well as recent and early gene flow. The best supported model for the origin of P. pundamilia and P. nyererei population pairs at two different islands is one where speciation happened twice, whereby the second speciation event follows shortly after introgression from an allopatric P. nyererei population that arose earlier. Our findings support the hypothesis that very similar species may arise repeatedly, potentially facilitated by introgressed genetic variation.
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Affiliation(s)
- Joana I Meier
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, CH-3012, Bern, Switzerland.,CMPG, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, CH-3012, Bern, Switzerland.,Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, CH-6047, Kastanienbaum, Switzerland
| | - Vitor C Sousa
- CMPG, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, CH-3012, Bern, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, CH-1015, Switzerland
| | - David A Marques
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, CH-3012, Bern, Switzerland.,CMPG, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, CH-3012, Bern, Switzerland.,Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, CH-6047, Kastanienbaum, Switzerland
| | - Oliver M Selz
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, CH-3012, Bern, Switzerland.,Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, CH-6047, Kastanienbaum, Switzerland
| | - Catherine E Wagner
- Biodiversity Institute & Department of Botany, University of Wyoming, Berry Center, 1000 E. University Ave, Laramie, WY, 82071, USA
| | - Laurent Excoffier
- CMPG, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, CH-3012, Bern, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, CH-1015, Switzerland
| | - Ole Seehausen
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, CH-3012, Bern, Switzerland.,Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, CH-6047, Kastanienbaum, Switzerland
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31
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Wilkins MR, Karaardıç H, Vortman Y, Parchman TL, Albrecht T, Petrželková A, Özkan L, Pap PL, Hubbard JK, Hund AK, Safran RJ. Phenotypic differentiation is associated with divergent sexual selection among closely related barn swallow populations. J Evol Biol 2016; 29:2410-2421. [DOI: 10.1111/jeb.12965] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 08/12/2016] [Indexed: 12/25/2022]
Affiliation(s)
- M. R. Wilkins
- Department of Ecology and Evolutionary Biology University of Colorado Boulder CO USA
- School of Biological Sciences University of Nebraska‐Lincoln Lincoln NE USA
| | - H. Karaardıç
- Department of Biology Faculty of Science Akdeniz University Antalya Turkey
- Elementary Science Education Department Education Faculty Alanya Alaaddin Keykubat University Alanya Turkey
| | - Y. Vortman
- Department of Zoology Tel‐Aviv University Tel‐Aviv Israel
- Department of Animal Sciences Hula Research Center Tel‐Hai College Tel‐Hai Israel
| | | | - T. Albrecht
- Institute of Vertebrate Biology Czech Academy of Sciences Brno Czech Republic
- Department of Zoology and Ecology Charles University in Prague Prague Czech Republic
| | - A. Petrželková
- Institute of Vertebrate Biology Czech Academy of Sciences Brno Czech Republic
- Department of Zoology and Ecology Charles University in Prague Prague Czech Republic
| | - L. Özkan
- Department of Biology Faculty of Science Akdeniz University Antalya Turkey
- Department of Wildlife Ecology and Management Faculty of Forestry Düzce University Düzce Turkey
| | - P. L. Pap
- Evolutionary Ecology Group Hungarian Department of Biology and Ecology Babeş‐Bolyai University Cluj‐Napoca Romania
| | - J. K. Hubbard
- Department of Ecology and Evolutionary Biology University of Colorado Boulder CO USA
- School of Biological Sciences University of Nebraska‐Lincoln Lincoln NE USA
| | - A. K. Hund
- Department of Ecology and Evolutionary Biology University of Colorado Boulder CO USA
| | - R. J. Safran
- Department of Ecology and Evolutionary Biology University of Colorado Boulder CO USA
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32
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Jacobs LE, Vega A, Dudgeon S, Kaiser K, Robertson JM. Local not vocal: assortative female choice in divergent populations of red-eyed treefrogs, Agalychnis callidryas(Hylidae: Phyllomedusinae). Biol J Linn Soc Lond 2016. [DOI: 10.1111/bij.12861] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Leah E. Jacobs
- Department of Biology; California State University, Northridge; Northridge CA 91330-8303 USA
| | - Andres Vega
- AMBICOR; 400 E., 75 S., 75 E. de la Municipalidad de Tibas Tibas Costa Rica
| | - Steven Dudgeon
- Department of Biology; California State University, Northridge; Northridge CA 91330-8303 USA
| | - Kristine Kaiser
- Department of Biology; California State University, Northridge; Northridge CA 91330-8303 USA
| | - Jeanne M. Robertson
- Department of Biology; California State University, Northridge; Northridge CA 91330-8303 USA
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