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Carlson ML, Stoddard MC. Evolution of Plumage Patterns in a Pattern Morphospace: A Phylogenetic Analysis of Melanerpine Woodpeckers. Am Nat 2024; 203:55-72. [PMID: 38207134 DOI: 10.1086/727508] [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] [Indexed: 01/13/2024]
Abstract
AbstractPlumage patterns of melanerpine (Melanerpes-Sphyrapicus) woodpeckers are strikingly diverse. Understanding the evolution and function of this diversity is challenging because of the difficulty of quantifying plumage patterns. We use a three-dimensional space to characterize the evolution of melanerpine achromatic plumage patterns. The axes of the space are three pattern features (spatial frequency, orientation, and contrast) quantified using two-dimensional fast Fourier transformation of museum specimen images. Mapping plumage in pattern space reveals differences in how species and subclades occupy the space. To quantify these differences, we derive two new measures of pattern: pattern diversity (diversity across plumage patches within a species) and pattern uniqueness (divergence of patterns from those of other species). We estimate that the melanerpine ancestor had mottled plumage and find that pattern traits across patches and subclades evolve at different rates. We also find that smaller species are more likely to display horizontal face patterning. We promote pattern spaces as powerful tools for investigating animal pattern evolution.
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2
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Doré M, Willmott K, Leroy B, Chazot N, Mallet J, Freitas AVL, Hall JPW, Lamas G, Dasmahapatra KK, Fontaine C, Elias M. Anthropogenic pressures coincide with Neotropical biodiversity hotspots in a flagship butterfly group. DIVERS DISTRIB 2021. [DOI: 10.1111/ddi.13455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Maël Doré
- Institut de Systématique, Evolution, Biodiversité MNHN‐CNRS‐Sorbonne Université‐EPHE‐Université des AntillesMuséum national d’Histoire naturelle de Paris Paris France
- Centre d’Ecologie et des Sciences de la Conservation UMR 7204 MNHN‐CNRS‐Sorbonne Université Muséum national d’Histoire naturelle de Paris Paris France
| | - Keith Willmott
- McGuire Center for Lepidoptera and Biodiversity Florida Museum of Natural History University of Florida Gainesville Florida USA
| | - Boris Leroy
- Unité Biologie des Organismes et Ecosystèmes Aquatiques (BOREA UMR 7208) Muséum National d’Histoire Naturelle Sorbonne UniversitésUniversité de Caen NormandieUniversité des AntillesCNRSIRD Paris France
| | - Nicolas Chazot
- Swedish University of Agricultural Sciences Uppsala Sweden
| | - James Mallet
- Dept of Organismic and Evolutionary Biology Harvard University Cambridge Massachusetts USA
| | - André V. L. Freitas
- Departamento de Biologia Animal and Museu da Biodiversidade Instituto de Biologia Universidade Estadual de Campinas São Paulo Brazil
| | - Jason P. W. Hall
- Department of Entomology National Museum of Natural History Smithsonian Institution Washington District of Columbia USA
| | - Gerardo Lamas
- Museo de Historia Natural Universidad Nacional Mayor de San Marcos Lima Peru
| | | | - Colin Fontaine
- Centre d’Ecologie et des Sciences de la Conservation UMR 7204 MNHN‐CNRS‐Sorbonne Université Muséum national d’Histoire naturelle de Paris Paris France
| | - Marianne Elias
- Institut de Systématique, Evolution, Biodiversité MNHN‐CNRS‐Sorbonne Université‐EPHE‐Université des AntillesMuséum national d’Histoire naturelle de Paris Paris France
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3
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Piron-Prunier F, Persyn E, Legeai F, McClure M, Meslin C, Robin S, Alves-Carvalho S, Mohammad A, Blugeon C, Jacquin-Joly E, Montagné N, Elias M, Gauthier J. Comparative transcriptome analysis at the onset of speciation in a mimetic butterfly-The Ithomiini Melinaea marsaeus. J Evol Biol 2021; 34:1704-1721. [PMID: 34570954 DOI: 10.1111/jeb.13940] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/16/2021] [Accepted: 09/03/2021] [Indexed: 11/28/2022]
Abstract
Ecological speciation entails divergent selection on specific traits and ultimately on the developmental pathways responsible for these traits. Selection can act on gene sequences but also on regulatory regions responsible for gene expression. Mimetic butterflies are a relevant system for speciation studies because wing colour pattern (WCP) often diverges between closely related taxa and is thought to drive speciation through assortative mating and increased predation on hybrids. Here, we generate the first transcriptomic resources for a mimetic butterfly of the tribe Ithomiini, Melinaea marsaeus, to examine patterns of differential expression between two subspecies and between tissues that express traits that likely drive reproductive isolation; WCP and chemosensory genes. We sequenced whole transcriptomes of three life stages to cover a large catalogue of transcripts, and we investigated differential expression between subspecies in pupal wing discs and antennae. Eighteen known WCP genes were expressed in wing discs and 115 chemosensory genes were expressed in antennae, with a remarkable diversity of chemosensory protein genes. Many transcripts were differentially expressed between subspecies, including two WCP genes and one odorant receptor. Our results suggest that in M. marsaeus the same genes as in other mimetic butterflies are involved in traits causing reproductive isolation, and point at possible candidates for the differences in those traits between subspecies. Differential expression analyses of other developmental stages and body organs and functional studies are needed to confirm and expand these results. Our work provides key resources for comparative genomics in mimetic butterflies, and more generally in Lepidoptera.
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Affiliation(s)
- Florence Piron-Prunier
- Institut de Systématique, Evolution, Biodiversité, MNHN, CNRS, Sorbonne Université, EPHE, Université des Antilles, Paris, France
| | - Emma Persyn
- Institute of Ecology and Environmental Sciences of Paris, Sorbonne Université, INRAE, CNRS, IRD, UPEC, Université de Paris, Paris, France
| | - Fabrice Legeai
- BIPAA, IGEPP, INRAE, Institut Agro, Univ Rennes, Rennes, France.,Univ Rennes, INRIA, CNRS, IRISA, Rennes, France
| | - Melanie McClure
- Institut de Systématique, Evolution, Biodiversité, MNHN, CNRS, Sorbonne Université, EPHE, Université des Antilles, Paris, France.,Laboratoire Écologie, Évolution,Interactions des Systèmes Amazoniens (LEEISA), Université de Guyane, CNRS, IFREMER, Cayenne, France
| | - Camille Meslin
- Institute of Ecology and Environmental Sciences of Paris, Sorbonne Université, INRAE, CNRS, IRD, UPEC, Université de Paris, Paris, France
| | - Stéphanie Robin
- BIPAA, IGEPP, INRAE, Institut Agro, Univ Rennes, Rennes, France.,Univ Rennes, INRIA, CNRS, IRISA, Rennes, France
| | | | - Ammara Mohammad
- Département de Biologie, Genomics Core Facility, Institut de Biologie de l'ENS (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Paris, France
| | - Corinne Blugeon
- Département de Biologie, Genomics Core Facility, Institut de Biologie de l'ENS (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Paris, France
| | - Emmanuelle Jacquin-Joly
- Institute of Ecology and Environmental Sciences of Paris, Sorbonne Université, INRAE, CNRS, IRD, UPEC, Université de Paris, Paris, France
| | - Nicolas Montagné
- Institute of Ecology and Environmental Sciences of Paris, Sorbonne Université, INRAE, CNRS, IRD, UPEC, Université de Paris, Paris, France
| | - Marianne Elias
- Institut de Systématique, Evolution, Biodiversité, MNHN, CNRS, Sorbonne Université, EPHE, Université des Antilles, Paris, France
| | - Jérémy Gauthier
- Univ Rennes, INRIA, CNRS, IRISA, Rennes, France.,Geneva Natural History Museum, Geneva, Switzerland
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4
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Hill RI. Convergent flight morphology among Müllerian mimic mutualists. Evolution 2021; 75:2460-2479. [PMID: 34431522 DOI: 10.1111/evo.14331] [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: 05/16/2020] [Revised: 07/15/2021] [Accepted: 07/26/2021] [Indexed: 10/20/2022]
Abstract
Müllerian mimicry involves a signal mutualism between prey species, shaped by visually hunting predators, and recent work has emphasized the importance of color pattern. Predators respond to more than color pattern, however, and other traits are much less studied. This article examines the hypothesis of convergent evolution in flight-related morphology among eight mimicry complexes composed of 51 butterfly species (Nymphalidae, Danainae, Ithomiini) from a single community in Ecuador. Phylogenetic comparative analyses of 14 variables indicated strong morphological differences between mimicry complexes belonging to three clusters of morphological space ("large yellow transparent," "tiger," and "transparent"), not the eight predicted based on color pattern alone. Analyses found convergence within mimicry complexes, convergence between mimicry complexes within morphospace clusters, and divergence between mimicry complexes from different morphospace clusters. These three clusters differed in size, and body and wing shape, predicting that flight biomechanics also converge (i.e., locomotor mimicry). Potential constraints on evolution of morphological mimicry related to predator discrimination, and evolutionary rates, likely e xplain why flight-related morphology differences were limited to three clusters of morphological space. Finally, the added complexity that flight-related morphology brings to signals between predator and prey indicates that evolutionary switches in color pattern are not all equally likely, potentially limiting the evolution of color patterns if they do not match morphology.
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Affiliation(s)
- Ryan I Hill
- Department of Integrative Biology, University of California, Berkeley, Berkeley, California, 94720.,Current Address: Department of Biological Sciences, University of the Pacific, Stockton, California, 95211
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5
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Prieto C, Faynel C, Robbins R, Hausmann A. Congruence between morphology-based species and Barcode Index Numbers (BINs) in Neotropical Eumaeini (Lycaenidae). PeerJ 2021; 9:e11843. [PMID: 34430077 PMCID: PMC8349518 DOI: 10.7717/peerj.11843] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 07/01/2021] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND With about 1,000 species in the Neotropics, the Eumaeini (Theclinae) are one of the most diverse butterfly tribes. Correct morphology-based identifications are challenging in many genera due to relatively little interspecific differences in wing patterns. Geographic infraspecific variation is sometimes more substantial than variation between species. In this paper we present a large DNA barcode dataset of South American Lycaenidae. We analyze how well DNA barcode BINs match morphologically delimited species. METHODS We compare morphology-based species identifications with the clustering of molecular operational taxonomic units (MOTUs) delimitated by the RESL algorithm in BOLD, which assigns Barcode Index Numbers (BINs). We examine intra- and interspecific divergences for genera represented by at least four morphospecies. We discuss the existence of local barcode gaps in a genus by genus analysis. We also note differences in the percentage of species with barcode gaps in groups of lowland and high mountain genera. RESULTS We identified 2,213 specimens and obtained 1,839 sequences of 512 species in 90 genera. Overall, the mean intraspecific divergence value of CO1 sequences was 1.20%, while the mean interspecific divergence between nearest congeneric neighbors was 4.89%, demonstrating the presence of a barcode gap. However, the gap seemed to disappear from the entire set when comparing the maximum intraspecific distance (8.40%) with the minimum interspecific distance (0.40%). Clear barcode gaps are present in many genera but absent in others. From the set of specimens that yielded COI fragment lengths of at least 650 bp, 75% of the a priori morphology-based identifications were unambiguously assigned to a single Barcode Index Number (BIN). However, after a taxonomic a posteriori review, the percentage of matched identifications rose to 85%. BIN splitting was observed for 17% of the species and BIN sharing for 9%. We found that genera that contain primarily lowland species show higher percentages of local barcode gaps and congruence between BINs and morphology than genera that contain exclusively high montane species. The divergence values to the nearest neighbors were significantly lower in high Andean species while the intra-specific divergence values were significantly lower in the lowland species. These results raise questions regarding the causes of observed low inter and high intraspecific genetic variation. We discuss incomplete lineage sorting and hybridization as most likely causes of this phenomenon, as the montane species concerned are relatively young and hybridization is probable. The release of our data set represents an essential baseline for a reference library for biological assessment studies of butterflies in mega diverse countries using modern high-throughput technologies an highlights the necessity of taxonomic revisions for various genera combining both molecular and morphological data.
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Affiliation(s)
- Carlos Prieto
- Departamento de Biología, Universidad del Atlántico, Barranquilla, Colombia
- Corporación Universitaria Autónoma del Cauca, Popayán, Colombia
| | | | - Robert Robbins
- Department of Entomology, Smithsonian Institution, Washington, USA
| | - Axel Hausmann
- SNSB-Bavarian State Collection of Zoology, Munich, Germany
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6
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Hernández-Hernández T, Miller EC, Román-Palacios C, Wiens JJ. Speciation across the Tree of Life. Biol Rev Camb Philos Soc 2021; 96:1205-1242. [PMID: 33768723 DOI: 10.1111/brv.12698] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/13/2021] [Accepted: 02/16/2021] [Indexed: 01/04/2023]
Abstract
Much of what we know about speciation comes from detailed studies of well-known model systems. Although there have been several important syntheses on speciation, few (if any) have explicitly compared speciation among major groups across the Tree of Life. Here, we synthesize and compare what is known about key aspects of speciation across taxa, including bacteria, protists, fungi, plants, and major animal groups. We focus on three main questions. Is allopatric speciation predominant across groups? How common is ecological divergence of sister species (a requirement for ecological speciation), and on what niche axes do species diverge in each group? What are the reproductive isolating barriers in each group? Our review suggests the following patterns. (i) Based on our survey and projected species numbers, the most frequent speciation process across the Tree of Life may be co-speciation between endosymbiotic bacteria and their insect hosts. (ii) Allopatric speciation appears to be present in all major groups, and may be the most common mode in both animals and plants, based on non-overlapping ranges of sister species. (iii) Full sympatry of sister species is also widespread, and may be more common in fungi than allopatry. (iv) Full sympatry of sister species is more common in some marine animals than in terrestrial and freshwater ones. (v) Ecological divergence of sister species is widespread in all groups, including ~70% of surveyed species pairs of plants and insects. (vi) Major axes of ecological divergence involve species interactions (e.g. host-switching) and habitat divergence. (vii) Prezygotic isolation appears to be generally more widespread and important than postzygotic isolation. (viii) Rates of diversification (and presumably speciation) are strikingly different across groups, with the fastest rates in plants, and successively slower rates in animals, fungi, and protists, with the slowest rates in prokaryotes. Overall, our study represents an initial step towards understanding general patterns in speciation across all organisms.
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Affiliation(s)
- Tania Hernández-Hernández
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721-0088, U.S.A.,Catedrática CONACYT asignada a LANGEBIO-UGA Cinvestav, Libramiento Norte Carretera León Km 9.6, 36821, Irapuato, Guanajuato, Mexico
| | - Elizabeth C Miller
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721-0088, U.S.A
| | - Cristian Román-Palacios
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721-0088, U.S.A
| | - John J Wiens
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721-0088, U.S.A
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7
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Ortiz‐Acevedo E, Gomez JP, Espeland M, Toussaint EFA, Willmott KR. The roles of wing color pattern and geography in the evolution of Neotropical Preponini butterflies. Ecol Evol 2020; 10:12801-12816. [PMID: 33304495 PMCID: PMC7713932 DOI: 10.1002/ece3.6816] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 11/20/2022] Open
Abstract
Diversification rates and evolutionary trajectories are known to be influenced by phenotypic traits and the geographic history of the landscapes that organisms inhabit. One of the most conspicuous traits in butterflies is their wing color pattern, which has been shown to be important in speciation. The evolution of many taxa in the Neotropics has also been influenced by major geological events. Using a dated, species-level molecular phylogenetic hypothesis for Preponini, a colorful Neotropical butterfly tribe, we evaluated whether diversification rates were constant or varied through time, and how they were influenced by color pattern evolution and biogeographical events. We found that Preponini originated approximately 28 million years ago and that diversification has increased through time consistent with major periods of Andean uplift. Even though some clades show evolutionarily rapid transitions in coloration, contrary to our expectations, these shifts were not correlated with shifts in diversification. Involvement in mimicry with other butterfly groups might explain the rapid changes in dorsal color patterns in this tribe, but such changes have not increased species diversification in this group. However, we found evidence for an influence of major Miocene and Pliocene geological events on the tribe's evolution. Preponini apparently originated within South America, and range evolution has since been dynamic, congruent with Andean geologic activity, closure of the Panama Isthmus, and Miocene climate variability.
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Affiliation(s)
- Elena Ortiz‐Acevedo
- Departamento de Química y BiologíaUniversidad del NorteBarranquillaColombia
- Florida Museum of Natural HistoryUniversity of FloridaGainesvilleFLUSA
| | - Juan Pablo Gomez
- Departamento de Química y BiologíaUniversidad del NorteBarranquillaColombia
| | | | | | - Keith R. Willmott
- Florida Museum of Natural HistoryUniversity of FloridaGainesvilleFLUSA
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8
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Aubier TG, Elias M. Positive and negative interactions jointly determine the structure of Müllerian mimetic communities. OIKOS 2020. [DOI: 10.1111/oik.06789] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Thomas G. Aubier
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE – UMR 5175 – CNRS, Univ. de Montpellier, EPHE, Univ. Paul Valéry 1919 route de Mende FR‐34293 Montpellier 5 France
- Dept of Evolutionary Biology and Environmental Studies, Univ. of Zurich Zurich Switzerland
| | - Marianne Elias
- Inst. de Systématique, Evolution, Biodiversité, ISYEB ‐ UMR 7205 ‐ Mus. Natl d'Hist. Nat., CNRS, Sorbonne Univ., EPHE, Univ. des Antilles Paris France
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9
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McClure M, Mahrouche L, Houssin C, Monllor M, Le Poul Y, Frérot B, Furtos A, Elias M. Does divergent selection predict the evolution of mate preference and reproductive isolation in the tropical butterfly genus
Melinaea
(Nymphalidae: Ithomiini)? J Anim Ecol 2019; 88:940-952. [DOI: 10.1111/1365-2656.12975] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 01/25/2019] [Indexed: 11/27/2022]
Affiliation(s)
- Melanie McClure
- Institut Systématique Évolution Biodiversité (ISYEB) Centre National de la Recherche Scientifique MNHN EPHE Sorbonne Université Université des Antilles Paris France
| | - Louiza Mahrouche
- Centre Régional de Spectrométrie de Masse Département de Chimie Université de Montréal Montréal Quebec Canada
| | - Céline Houssin
- Institut Systématique Évolution Biodiversité (ISYEB) Centre National de la Recherche Scientifique MNHN EPHE Sorbonne Université Université des Antilles Paris France
| | - Monica Monllor
- Institut Systématique Évolution Biodiversité (ISYEB) Centre National de la Recherche Scientifique MNHN EPHE Sorbonne Université Université des Antilles Paris France
| | - Yann Le Poul
- Faculty of Biology LMU Munich Planegg‐Martinsried Germany
| | - Brigitte Frérot
- Institut d’Écologie et des Sciences de l'Environnement IEES – INRA UMR 1392 Versailles Cedex France
| | - Alexandra Furtos
- Centre Régional de Spectrométrie de Masse Département de Chimie Université de Montréal Montréal Quebec Canada
| | - Marianne Elias
- Institut Systématique Évolution Biodiversité (ISYEB) Centre National de la Recherche Scientifique MNHN EPHE Sorbonne Université Université des Antilles Paris France
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10
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Arias M, Mappes J, Desbois C, Gordon S, McClure M, Elias M, Nokelainen O, Gomez D. Transparency reduces predator detection in mimetic clearwing butterflies. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13315] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mónica Arias
- Univ Montpellier, Univ Paul Valéry Montpellier 3, EPHE, IRD; CEFE; Montpellier France
| | - Johanna Mappes
- Department of Biological and Environmental Science, Centre of Excellence in Biological Interactions; University of Jyväskylä; Jyväskylä Finland
| | - Charlotte Desbois
- Institut de Systématique, Evolution, Biodiversité (ISYEB), CNRS, MNHN, Sorbonne Université, EPHE; Université des Antilles; Paris France
| | - Swanne Gordon
- Department of Biological and Environmental Science, Centre of Excellence in Biological Interactions; University of Jyväskylä; Jyväskylä Finland
| | - Melanie McClure
- Institut de Systématique, Evolution, Biodiversité (ISYEB), CNRS, MNHN, Sorbonne Université, EPHE; Université des Antilles; Paris France
| | - Marianne Elias
- Institut de Systématique, Evolution, Biodiversité (ISYEB), CNRS, MNHN, Sorbonne Université, EPHE; Université des Antilles; Paris France
| | - Ossi Nokelainen
- Department of Biological and Environmental Science, Centre of Excellence in Biological Interactions; University of Jyväskylä; Jyväskylä Finland
| | - Doris Gomez
- Univ Montpellier, Univ Paul Valéry Montpellier 3, EPHE, IRD; CEFE; Montpellier France
- INSP, Sorbonne Université; CNRS; Paris France
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11
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Bosque RJ, Lawrence JP, Buchholz R, Colli GR, Heppard J, Noonan B. Diversity of warning signal and social interaction influences the evolution of imperfect mimicry. Ecol Evol 2018; 8:7490-7499. [PMID: 30151165 PMCID: PMC6106177 DOI: 10.1002/ece3.4272] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/10/2018] [Accepted: 05/15/2018] [Indexed: 11/25/2022] Open
Abstract
Mimicry, the resemblance of one species by another, is a complex phenomenon where the mimic (Batesian mimicry) or the model and the mimic (Mullerian mimicry) gain an advantage from this phenotypic convergence. Despite the expectation that mimics should closely resemble their models, many mimetic species appear to be poor mimics. This is particularly apparent in some systems in which there are multiple available models. However, the influence of model pattern diversity on the evolution of mimetic systems remains poorly understood. We tested whether the number of model patterns a predator learns to associate with a negative consequence affects their willingness to try imperfect, novel patterns. We exposed week-old chickens to coral snake (Micrurus) color patterns representative of three South American areas that differ in model pattern richness, and then tested their response to the putative imperfect mimetic pattern of a widespread species of harmless colubrid snake (Oxyrhopus rhombifer) in different social contexts. Our results indicate that chicks have a great hesitation to attack when individually exposed to high model pattern diversity and a greater hesitation to attack when exposed as a group to low model pattern diversity. Individuals with a fast growth trajectory (measured by morphological traits) were also less reluctant to attack. We suggest that the evolution of new patterns could be favored by social learning in areas of low pattern diversity, while individual learning can reduce predation pressure on recently evolved mimics in areas of high model diversity. Our results could aid the development of ecological predictions about the evolution of imperfect mimicry and mimicry in general.
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Affiliation(s)
| | | | | | | | | | - Brice Noonan
- The University of MississippiUniversityMississippi
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12
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Phylogeny and evolution of Müllerian mimicry in aposematic Dilophotes: evidence for advergence and size-constraints in evolution of mimetic sexual dimorphism. Sci Rep 2018; 8:3744. [PMID: 29487341 PMCID: PMC5829258 DOI: 10.1038/s41598-018-22155-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 02/15/2018] [Indexed: 01/05/2023] Open
Abstract
Multiple patterns and intraspecific polymorphism should not persist in mutualistic Müllerian systems due to purifying and frequency-dependent selection, but they are commonly identified in nature. We analysed molecular phylogeny and reconstructed dispersal history of 58 species of Dilophotes (Coleoptera: Lycidae) in Asia. Dilophotes colonized the Great Sundas and Malay Peninsula where they joined extensive mimetic communities of net-winged beetles. We identified the brightly bi-coloured males and females which adverged on five occasions to different autochthonous models. This is the first described case of Müllerian sexual dimorphism based on sex-specific body size. We propose that the constraint, i.e. the conservative sexual size dimorphism, forced the unprofitable prey to such complex adaptation in a multi-pattern environment. Although mimetic sexual dimorphism has frequently evolved in Dilophotes, a single pattern has been maintained by both sexes in multiple closely related, sympatrically occurring species. Some patterns may be suboptimal because they are rare, crudely resemble co-mimics, or are newly evolved, but they persist in Müllerian communities for a long time. We assume that failure to closely resemble the most common model can increase the diversity of large Müllerian communities and produce mimetic dimorphism.
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13
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Willmott KR, Robinson Willmott JC, Elias M, Jiggins CD. Maintaining mimicry diversity: optimal warning colour patterns differ among microhabitats in Amazonian clearwing butterflies. Proc Biol Sci 2017; 284:20170744. [PMID: 28539522 PMCID: PMC5454276 DOI: 10.1098/rspb.2017.0744] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 05/02/2017] [Indexed: 11/12/2022] Open
Abstract
Mimicry is one of the best-studied examples of adaptation, and recent studies have provided new insights into the role of mimicry in speciation and diversification. Classical Müllerian mimicry theory predicts convergence in warning signal among protected species, yet tropical butterflies are exuberantly diverse in warning colour patterns, even within communities. We tested the hypothesis that microhabitat partitioning in aposematic butterflies and insectivorous birds can lead to selection for different colour patterns in different microhabitats and thus help maintain mimicry diversity. We measured distribution across flight height and topography for 64 species of clearwing butterflies (Ithomiini) and their co-mimics, and 127 species of insectivorous birds, in an Amazon rainforest community. For the majority of bird species, estimated encounter rates were non-random for the two most abundant mimicry rings. Furthermore, most butterfly species in these two mimicry rings displayed the warning colour pattern predicted to be optimal for anti-predator defence in their preferred microhabitats. These conclusions were supported by a field trial using butterfly specimens, which showed significantly different predation rates on colour patterns in two microhabitats. We therefore provide the first direct evidence to support the hypothesis that different mimicry patterns can represent stable, community-level adaptations to differing biotic environments.
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Affiliation(s)
- Keith R Willmott
- McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | | | - Marianne Elias
- Institut de Systématique, Evolution, Biodiversité, ISYEB-UMR 7205-CNRS, MNHN, UPMC, EPHE, Muséum National d'Histoire Naturelle, Sorbonne Universités, 57 rue Cuvier, CP50, Paris 75005, France
| | - Chris D Jiggins
- Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
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Lisa De-Silva D, Mota LL, Chazot N, Mallarino R, Silva-Brandão KL, Piñerez LMG, Freitas AV, Lamas G, Joron M, Mallet J, Giraldo CE, Uribe S, Särkinen T, Knapp S, Jiggins CD, Willmott KR, Elias M. North Andean origin and diversification of the largest ithomiine butterfly genus. Sci Rep 2017; 7:45966. [PMID: 28387233 PMCID: PMC5384087 DOI: 10.1038/srep45966] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 02/22/2017] [Indexed: 01/01/2023] Open
Abstract
The Neotropics harbour the most diverse flora and fauna on Earth. The Andes are a major centre of diversification and source of diversity for adjacent areas in plants and vertebrates, but studies on insects remain scarce, even though they constitute the largest fraction of terrestrial biodiversity. Here, we combine molecular and morphological characters to generate a dated phylogeny of the butterfly genus Pteronymia (Nymphalidae: Danainae), which we use to infer spatial, elevational and temporal diversification patterns. We first propose six taxonomic changes that raise the generic species total to 53, making Pteronymia the most diverse genus of the tribe Ithomiini. Our biogeographic reconstruction shows that Pteronymia originated in the Northern Andes, where it diversified extensively. Some lineages colonized lowlands and adjacent montane areas, but diversification in those areas remained scarce. The recent colonization of lowland areas was reflected by an increase in the rate of evolution of species' elevational ranges towards present. By contrast, speciation rate decelerated with time, with no extinction. The geological history of the Andes and adjacent regions have likely contributed to Pteronymia diversification by providing compartmentalized habitats and an array of biotic and abiotic conditions, and by limiting dispersal between some areas while promoting interchange across others.
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Affiliation(s)
- Donna Lisa De-Silva
- Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205–CNRS MNHN UPMC EPHE, Muséum National d’Histoire Naturelle, Sorbonne Universités, 57 rue Cuvier CP50 F-75005, Paris, France
| | - Luísa L. Mota
- Departamento de Zoologia and Museu de Zoologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Nicolas Chazot
- Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205–CNRS MNHN UPMC EPHE, Muséum National d’Histoire Naturelle, Sorbonne Universités, 57 rue Cuvier CP50 F-75005, Paris, France
- Department of Biology, Lunds Universitet, Lund, Sweden
| | - Ricardo Mallarino
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
| | - Karina L. Silva-Brandão
- Centro de Biologia Molecular e Engenharia Genética, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Luz Miryam Gómez Piñerez
- Universidad Nacional de Colombia, sede Medellín, Medellín, Colombia
- Grupo de investigación Ciencias Forenses y Salud, Tecnológico de Antioquia, Medellin, Colombia
| | - André V.L. Freitas
- Departamento de Zoologia and Museu de Zoologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Gerardo Lamas
- Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Mathieu Joron
- Centre d’Ecologie Fonctionnelle et Evolutive, CEFE, UMR 5175 CNRS - EPHE - Université de Montpellier - Université Paul Valéry Montpellier, 34293 Montpellier 5, France
| | - James Mallet
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
| | - Carlos E. Giraldo
- Universidad Nacional de Colombia, sede Medellín, Medellín, Colombia
- Grupo de Investigación de Sanidad Vegetal, Universidad Católica de Oriente, Rionegro, Antioquia, Colombia
| | - Sandra Uribe
- Universidad Nacional de Colombia, sede Medellín, Medellín, Colombia
| | - Tiina Särkinen
- Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3 5LR, UK
| | - Sandra Knapp
- Department of Life Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK
| | - Chris D. Jiggins
- Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
| | - Keith R. Willmott
- McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, Gainesville, Florida 32611, USA
| | - Marianne Elias
- Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205–CNRS MNHN UPMC EPHE, Muséum National d’Histoire Naturelle, Sorbonne Universités, 57 rue Cuvier CP50 F-75005, Paris, France
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15
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Aubier TG, Elias M, Llaurens V, Chazot N. Mutualistic mimicry enhances species diversification through spatial segregation and extension of the ecological niche space. Evolution 2017; 71:826-844. [DOI: 10.1111/evo.13182] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 01/06/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas G. Aubier
- Centre d'Ecologie Fonctionnelle et Evolutive; CEFE - UMR 5175 - CNRS, Université de Montpellier, EPHE, Université Paul Valéry; 1919 route de Mende, F-34293 Montpellier 5 France
- Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum National d'Histoire Naturelle; Sorbonne Universités; 57 rue Cuvier, CP50 F-75005 Paris France
| | - Marianne Elias
- Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum National d'Histoire Naturelle; Sorbonne Universités; 57 rue Cuvier, CP50 F-75005 Paris France
| | - Violaine Llaurens
- Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum National d'Histoire Naturelle; Sorbonne Universités; 57 rue Cuvier, CP50 F-75005 Paris France
| | - Nicolas Chazot
- Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum National d'Histoire Naturelle; Sorbonne Universités; 57 rue Cuvier, CP50 F-75005 Paris France
- Department of Biology; Lund University; Lund Sweden
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16
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Chazot N, Willmott KR, Condamine FL, De‐Silva DL, Freitas AVL, Lamas G, Morlon H, Giraldo CE, Jiggins CD, Joron M, Mallet J, Uribe S, Elias M. Into the Andes: multiple independent colonizations drive montane diversity in the Neotropical clearwing butterflies Godyridina. Mol Ecol 2016; 25:5765-5784. [DOI: 10.1111/mec.13773] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 07/05/2016] [Accepted: 07/11/2016] [Indexed: 02/06/2023]
Affiliation(s)
- Nicolas Chazot
- Institut de Systématique, Évolution, Biodiversité ISYEB – UMR 7205 – CNRS MNHN UPMC EPHE Muséum national d'Histoire naturelle Sorbonne Universités 57 rue Cuvier CP50 F‐75005 Paris France
- Department of Biology University of Lund 223 62 Lund Sweden
| | - Keith R. Willmott
- McGuire Center for Lepidoptera and Biodiversity Florida Museum of Natural History University of Florida Gainesville FL 32611 USA
| | - Fabien L. Condamine
- CNRS UMR 5554 Institut des Sciences de l'Evolution (Université de Montpellier) Place Eugène Bataillon 34095 Montpellier France
- Department of Biological Sciences University of Alberta T6G 2E9 Edmonton AB Canada
| | - Donna Lisa De‐Silva
- Institut de Systématique, Évolution, Biodiversité ISYEB – UMR 7205 – CNRS MNHN UPMC EPHE Muséum national d'Histoire naturelle Sorbonne Universités 57 rue Cuvier CP50 F‐75005 Paris France
| | - André V. L. Freitas
- Departamento de Zoologia and Museu de Zoologia Instituto de Biologia Universidade Estadual de Campinas Campinas São Paulo Brazil
| | - Gerardo Lamas
- Museo de Historia Natural Universidad Nacional de San Marcos Lima Peru
| | - Hélène Morlon
- IBENS Ecole Normale Supérieure UMR 8197 CNRS Paris France
| | - Carlos E. Giraldo
- Grupo de Investigación de Sanidad Vegetal Universidad Católica de Oriente Rionegro Antioquia Colombia
| | | | - Mathieu Joron
- Centre d'Ecologie Fonctionnelle et Evolutive CEFE UMR 5175 CNRS – EPHE – Université de Montpellier – Université Paul Valéry Montpellier 34293 Montpellier 5 France
| | - James Mallet
- Department of Organismic and Evolutionary Biology Harvard University Cambridge MA 02138 USA
| | - Sandra Uribe
- Universidad Nacional de Colombia, sede Medellín Medellín Colombia
| | - Marianne Elias
- Institut de Systématique, Évolution, Biodiversité ISYEB – UMR 7205 – CNRS MNHN UPMC EPHE Muséum national d'Histoire naturelle Sorbonne Universités 57 rue Cuvier CP50 F‐75005 Paris France
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17
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De‐Silva DL, Elias M, Willmott K, Mallet J, Day JJ. Diversification of clearwing butterflies with the rise of the Andes. JOURNAL OF BIOGEOGRAPHY 2016; 43:44-58. [PMID: 27546953 PMCID: PMC4973677 DOI: 10.1111/jbi.12611] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
AIM Despite the greatest butterfly diversity on Earth occurring in the Neotropical Andes and Amazonia, there is still keen debate about the origins of this exceptional biota. A densely sampled calibrated phylogeny for a widespread butterfly subtribe, Oleriina (Nymphalidae: Ithomiini) was used to estimate the origin, colonization history and diversification of this species-rich group. LOCATION Neotropics. METHODS Ancestral elevation and biogeographical ranges were reconstructed using data generated from detailed range maps and applying the dispersal-extinction-cladogenesis model using stratified palaeogeographical time slice matrices. The pattern of diversification through time was examined by comparing constant and variable rate models. We also tested the hypothesis that a change in elevation is associated with speciation. RESULTS The Oleriina likely originated in the Andes in the Early to Middle Miocene and rapidly diversified to include four genera all of which also originated in the Andes. These clades, together with four species groups, experienced varying spatial and temporal patterns of diversification. An overall early burst and decreasing diversification rate is identified, and this pattern is reflected for most subclades. MAIN CONCLUSIONS Changes in the palaeogeological landscape, particularly the prolonged uplift of the Andes, had a profound impact on the diversification of the subtribe. The Oleriina mostly remained within the Andes and vicariant speciation resulted in some instances. Dynamic dispersal occurred with the disappearance of geological barriers such as the Acre System and the subtribe exploited newly available habitats. Our results confirm the role of the Andean uplift in the evolution of Neotropical biodiversity.
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Affiliation(s)
- Donna Lisa De‐Silva
- Institut de Systématique, Évolution, BiodiversitéISYEB – UMR 7205 – CNRSMNHNUPMCEPHEMuséum National d'Histoire NaturelleSorbonne Universités57 rue Cuvier, CP50ParisF‐75005France
- Department of Genetics, Evolution and EnvironmentUniversity College LondonDarwin BuildingGower StreetLondonWC1E 6BTUK
| | - Marianne Elias
- Institut de Systématique, Évolution, BiodiversitéISYEB – UMR 7205 – CNRSMNHNUPMCEPHEMuséum National d'Histoire NaturelleSorbonne Universités57 rue Cuvier, CP50ParisF‐75005France
| | - Keith Willmott
- McGuire Center for LepidopteraFlorida Museum of Natural HistoryUniversity of FloridaP.O. Box 112710GainesvilleFL32611‐2710USA
| | - James Mallet
- Department of Organismic and Evolutionary BiologyHarvard University Biology Laboratories16 Divinity AvenueCambridgeMA02138USA
| | - Julia J. Day
- Department of Genetics, Evolution and EnvironmentUniversity College LondonDarwin BuildingGower StreetLondonWC1E 6BTUK
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18
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Elias M, Joron M. Mimicry inHeliconiusand Ithomiini butterflies: The profound consequences of an adaptation. BIO WEB OF CONFERENCES 2015. [DOI: 10.1051/bioconf/20150400008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Garzón-Orduña IJ, Silva-Brandão KL, Willmott KR, Freitas AVL, Brower AVZ. Incompatible Ages for Clearwing Butterflies Based on Alternative Secondary Calibrations. Syst Biol 2015; 64:752-67. [DOI: 10.1093/sysbio/syv032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 05/20/2015] [Indexed: 11/14/2022] Open
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20
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Arias CF, Salazar C, Rosales C, Kronforst MR, Linares M, Bermingham E, McMillan WO. Phylogeography of Heliconius cydno and its closest relatives: disentangling their origin and diversification. Mol Ecol 2014; 23:4137-52. [PMID: 24962067 DOI: 10.1111/mec.12844] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 06/14/2014] [Accepted: 06/16/2014] [Indexed: 11/28/2022]
Abstract
The origins of the extraordinary diversity within the Neotropics have long fascinated biologists and naturalists. Yet, the underlying factors that have given rise to this diversity remain controversial. To test the relative importance of Quaternary climatic change and Neogene tectonic and paleogeographic reorganizations in the generation of biodiversity, we examine intraspecific variation across the Heliconius cydno radiation and compare this variation to that within the closely related Heliconius melpomene and Heliconius timareta radiations. Our data, which consist of both mtDNA and genome-scan data from nearly 2250 amplified fragment length polymorphism (AFLP) loci, reveal a complex history of differentiation and admixture at different geographic scales. Both mtDNA and AFLP phylogenies suggest that H. timareta and H. cydno are probably geographic extremes of the same radiation that probably diverged from H. melpomene prior to the Pliocene-Pleistocene boundary, consistent with hypotheses of diversification that rely on geological events in the Pliocene. The mtDNA suggests that this radiation originated in Central America or the northwestern region of South America, with a subsequent colonization of the eastern and western slopes of the Andes. Our genome-scan data indicate significant admixture among sympatric H. cydno/H. timareta and H. melpomene populations across the extensive geographic ranges of the two radiations. Within H. cydno, both mtDNA and AFLP data indicate significant population structure at local scales, with strong genetic differences even among adjacent H. cydno colour pattern races. These genetic patterns highlight the importance of past geoclimatic events, intraspecific gene flow, and local population differentiation in the origin and establishment of new adaptive forms.
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Affiliation(s)
- Carlos F Arias
- Department of Biology, McGill University, 1205 Ave. Dr. Penfield, Montreal, QC, Canada, H3A 1B1; Smithsonian Tropical Research Institute, Apartado 0843-03092, Panamá, Panamá
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21
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Brower AVZ, Willmott KR, Silva-Brandão KL, Garzón-Orduña IJ, Freitas AVL. Phylogenetic relationships of ithomiine butterflies (Lepidoptera: Nymphalidae: Danainae) as implied by combined morphological and molecular data. SYST BIODIVERS 2014. [DOI: 10.1080/14772000.2014.899650] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Pekár S. Comparative analysis of passive defences in spiders (Araneae). J Anim Ecol 2014; 83:779-90. [PMID: 24205934 DOI: 10.1111/1365-2656.12177] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 11/05/2013] [Indexed: 11/30/2022]
Abstract
Being frequent prey of many predators, including especially wasps and birds, spiders have evolved a variety of defence mechanisms. Here I studied patterns of passive defences, namely anachoresis, crypsis, masquerade, aposematism and Batesian mimicry, in spiders. Using published information pertaining more than 1000 spider species, the phylogenetic pattern of different passive defences (i.e. defences that decrease the risk of an encounter with the predator) was investigated. Furthermore, I studied the effect of foraging guild, geographical distribution and diel activity on the frequency of defences as these determine the predators diversity, presence and perception. I found that crypsis (background matching) combined with anachoresis (hiding) was the most frequent defence confined mainly to families/genera at the base of the tree. Aposematism (warning coloration) and Batesian mimicry (imitation of noxious/dangerous model) were found in taxa that branched later in the tree, and masquerade (imitation of inedible objects) was confined to families at intermediate positions of the tree. Aposematism and Batesian mimicry were restricted to a few lineages. Masquerade was used particularly by web-building species with nocturnal activity. Aposematism was rare but mainly used by web-building diurnal species. Batesian mimicry was frequently observed in cursorial species with diurnal activity. Cryptic species were more common in temperate zones, whereas aposematic and mimetic species were more common in the tropics. Here I show that the evolution of passive defences in spiders was influenced by the ecology of species. Then, I discuss the evolutionary significance of the particularly defences.
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Affiliation(s)
- Stano Pekár
- Faculty of Sciences, Department of Botany and Zoology, Masaryk University, Kotlářská 2, 611 37, Brno, Czech Republic
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23
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Chazot N, Willmott KR, Santacruz Endara PG, Toporov A, Hill RI, Jiggins CD, Elias M. Mutualistic Mimicry and Filtering by Altitude Shape the Structure of Andean Butterfly Communities. Am Nat 2014; 183:26-39. [DOI: 10.1086/674100] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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24
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Garzón-Orduña IJ, Marini-Filho O, Johnson SG, Penz CM. Phylogenetic relationships ofHamadryas(Nymphalidae: Biblidinae) based on the combined analysis of morphological and molecular data. Cladistics 2013; 29:629-642. [DOI: 10.1111/cla.12021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/25/2013] [Indexed: 11/27/2022] Open
Affiliation(s)
- Ivonne J. Garzón-Orduña
- 2000 Lakeshore Drive; Department of Biological Sciences; University of New Orleans; New Orleans LA 70148 USA
| | - Onildo Marini-Filho
- Centro Nacional de Pesquisa e Conservação da Biodiversidade do Cerrado e da Caatinga-CECAT; Instituto Chico Mendes de Conservação da Biodiversidade-ICMBio; Brasília DF Brazil
| | - Steve G. Johnson
- 2000 Lakeshore Drive; Department of Biological Sciences; University of New Orleans; New Orleans LA 70148 USA
| | - Carla M. Penz
- 2000 Lakeshore Drive; Department of Biological Sciences; University of New Orleans; New Orleans LA 70148 USA
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25
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Systematics and evolutionary history of butterflies in the “Taygetis clade” (Nymphalidae: Satyrinae: Euptychiina): Towards a better understanding of Neotropical biogeography. Mol Phylogenet Evol 2013; 66:54-68. [DOI: 10.1016/j.ympev.2012.09.005] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 08/29/2012] [Accepted: 09/06/2012] [Indexed: 11/23/2022]
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26
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Nattier R, Grandcolas P, Elias M, Desutter-Grandcolas L, Jourdan H, Couloux A, Robillard T. Secondary sympatry caused by range expansion informs on the dynamics of microendemism in a biodiversity hotspot. PLoS One 2012; 7:e48047. [PMID: 23139758 PMCID: PMC3490955 DOI: 10.1371/journal.pone.0048047] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 09/20/2012] [Indexed: 12/31/2022] Open
Abstract
Islands are bounded areas where high endemism is explained either by allopatric speciation through the fragmentation of the limited amount of space available, or by sympatric speciation and accumulation of daughter species. Most empirical evidence point out the dominant action of allopatric speciation. We evaluate this general view by looking at a case study where sympatric speciation is suspected. We analyse the mode, tempo and geography of speciation in Agnotecous, a cricket genus endemic to New Caledonia showing a generalized pattern of sympatry between species making sympatric speciation plausible. We obtained five mitochondrial and five nuclear markers (6.8 kb) from 37 taxa corresponding to 17 of the 21 known extant species of Agnotecous, and including several localities per species, and we conducted phylogenetic and dating analyses. Our results suggest that the diversification of Agnotecous occurred mostly through allopatric speciation in the last 10 Myr. Highly microendemic species are the most recent ones (<2 Myr) and current sympatry is due to secondary range expansion after allopatric speciation. Species distribution should then be viewed as a highly dynamic process and extreme microendemism only as a temporary situation. We discuss these results considering the influence of climatic changes combined with intricate soil diversity and mountain topography. A complex interplay between these factors could have permitted repeated speciation events and range expansion.
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Affiliation(s)
- Romain Nattier
- Muséum national d'Histoire naturelle, Département Systématique et Evolution, UMR 7205 CNRS OSEB, Case postale 50 (Entomologie), Paris, France.
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27
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Shah P, Fitzpatrick BM, Fordyce JA. A PARAMETRIC METHOD FOR ASSESSING DIVERSIFICATION-RATE VARIATION IN PHYLOGENETIC TREES. Evolution 2012; 67:368-77. [DOI: 10.1111/j.1558-5646.2012.01791.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Recent speciation in three closely related sympatric specialists: inferences using multi-locus sequence, post-mating isolation and endosymbiont data. PLoS One 2011; 6:e27834. [PMID: 22110767 PMCID: PMC3217007 DOI: 10.1371/journal.pone.0027834] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Accepted: 10/26/2011] [Indexed: 11/22/2022] Open
Abstract
Shifting between unrelated host plants is relatively rare for phytophagous insects, and distinct host specificity may play crucial roles in reproductive isolation. However, the isolation status and the relationship between parental divergence and post-mating isolation among closely related sympatric specialists are still poorly understood. Here, multi-locus sequence were used to estimate the relationship among three host plant–specific closely related flea beetles, Altica cirsicola, A. fragariae and A. viridicyanea (abbreviated as AC, AF and AV respectively). The tree topologies were inconsistent using different gene or different combinations of gene fragments. The relationship of AF+(AC+AV) was supported, however, by both gene tree and species tree based on concatenated data. Post-mating reproductive data on the results of crossing these three species are best interpreted in the light of a well established phylogeny. Nuclear-induced but not Wolbachia-induced unidirectional cytoplasmic incompatibility, which was detected in AC-AF and AF-AV but not in AC-AV, may also suggest more close genetic affinity between AC and AV. Prevalence of Wolbachia in these three beetles, and the endosymbiont in most individuals of AV and AC sharing a same wsp haplotype may give another evidence of AF+(AC+AV). Our study also suggested that these three flea beetles diverged in a relative short time (0.94 My), which may be the result of shifting between unrelated host plants and distinct host specificity. Incomplete post-mating isolation while almost complete lineage sorting indicated that effective pre-mating isolation among these three species should have evolved.
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29
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Fordyce JA. Host shifts and evolutionary radiations of butterflies. Proc Biol Sci 2010; 277:3735-43. [PMID: 20610430 PMCID: PMC2992698 DOI: 10.1098/rspb.2010.0211] [Citation(s) in RCA: 138] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Accepted: 06/16/2010] [Indexed: 11/12/2022] Open
Abstract
Ehrlich and Raven proposed a model of coevolution where major host plant shifts of butterflies facilitate a burst of diversification driven by their arrival to a new adaptive zone. One prediction of this model is that reconstructions of historical diversification of butterflies should indicate an increase in diversification rate following major host shifts. Using reconstructed histories of 15 butterfly groups, I tested this prediction and found general agreement with Ehrlich and Raven's model. Butterfly lineages with an inferred major historical host shift showed evidence of diversification rate variation, with a significant acceleration following the host shift. Lineages without an inferred major host shift generally agreed with a constant-rate model of diversification. These results are consistent with the view that host plant associations have played a profound role in the evolutionary history of butterflies, and show that major shifts to chemically distinct plant groups leave a historical footprint that remains detectable today.
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Affiliation(s)
- James A Fordyce
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA.
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30
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DASMAHAPATRA KANCHONK, LAMAS GERARDO, SIMPSON FRASER, MALLET JAMES. The anatomy of a ‘suture zone’ in Amazonian butterflies: a coalescent-based test for vicariant geographic divergence and speciation. Mol Ecol 2010; 19:4283-301. [DOI: 10.1111/j.1365-294x.2010.04802.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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31
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Interpreting the gamma statistic in phylogenetic diversification rate studies: a rate decrease does not necessarily indicate an early burst. PLoS One 2010; 5:e11781. [PMID: 20668707 PMCID: PMC2909265 DOI: 10.1371/journal.pone.0011781] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Accepted: 06/19/2010] [Indexed: 11/25/2022] Open
Abstract
Background Phylogenetic hypotheses are increasingly being used to elucidate historical patterns of diversification rate-variation. Hypothesis testing is often conducted by comparing the observed vector of branching times to a null, pure-birth expectation. A popular method for inferring a decrease in speciation rate, which might suggest an early burst of diversification followed by a decrease in diversification rate is the γ statistic. Methodology Using simulations under varying conditions, I examine the sensitivity of γ to the distribution of the most recent branching times. Using an exploratory data analysis tool for lineages through time plots, tree deviation, I identified trees with a significant γ statistic that do not appear to have the characteristic early accumulation of lineages consistent with an early, rapid rate of cladogenesis. I further investigated the sensitivity of the γ statistic to recent diversification by examining the consequences of failing to simulate the full time interval following the most recent cladogenic event. The power of γ to detect rate decrease at varying times was assessed for simulated trees with an initial high rate of diversification followed by a relatively low rate. Conclusions The γ statistic is extraordinarily sensitive to recent diversification rates, and does not necessarily detect early bursts of diversification. This was true for trees of various sizes and completeness of taxon sampling. The γ statistic had greater power to detect recent diversification rate decreases compared to early bursts of diversification. Caution should be exercised when interpreting the γ statistic as an indication of early, rapid diversification.
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Linnen CR, Farrell BD. A test of the sympatric host race formation hypothesis in Neodiprion (Hymenoptera: Diprionidae). Proc Biol Sci 2010; 277:3131-8. [PMID: 20504811 DOI: 10.1098/rspb.2010.0577] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Theory suggests that sympatric speciation is possible; however, its prevalence in nature remains unknown. Because Neodiprion sawflies are host specialists and mate on their hosts, sympatric speciation via host shifts may be common in this genus. Here, we test this hypothesis using near-complete taxonomic sampling of a species group, comprehensive geographical and ecological data, and multiple comparative methods. Host-use data suggest that host shifts contributed to the evolution of reproductive isolation in Neodiprion and previous work has shown that gene flow accompanied divergence. However, geographical data provide surprisingly little support for the hypothesis that host shifts occurred in sympatry. While these data do not rule out sympatric host race formation in Neodiprion, they suggest that this speciation mode is uncommon in the genus and possibly in nature.
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Affiliation(s)
- Catherine R Linnen
- Museum of Comparative Zoology, Harvard University, Cambridge, MA 02138, USA.
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MÜLLER CHRISJ, WAHLBERG NIKLAS, BEHEREGARAY LUCIANOB. ‘After Africa’: the evolutionary history and systematics of the genus Charaxes Ochsenheimer (Lepidoptera: Nymphalidae) in the Indo-Pacific region. Biol J Linn Soc Lond 2010. [DOI: 10.1111/j.1095-8312.2010.01426.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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de-Silva DL, Day JJ, Elias M, Willmott K, Whinnett A, Mallet J. Molecular phylogenetics of the neotropical butterfly subtribe Oleriina (Nymphalidae: Danainae: Ithomiini). Mol Phylogenet Evol 2010; 55:1032-41. [PMID: 20079859 DOI: 10.1016/j.ympev.2010.01.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2009] [Revised: 12/22/2009] [Accepted: 01/09/2010] [Indexed: 10/19/2022]
Abstract
The Oleriina is one of the most speciose subtribes of the neotropical nymphalid butterfly tribe Ithomiini. They are widely distributed across the Andes and Amazonian lowlands and like other ithomiines they are involved in complex mimicry rings. This subtribe is of particular interest because it contains the most diverse ithomiine genus, Oleria, as well as two genera, Megoleria and Hyposcada, that feed on hostplants not utilized elsewhere in the tribe. Here we present the first comprehensive species-level phylogeny for the Oleriina, representing 83% of recognised species in the group, and based on 6698bp from eight mitochondrial (mt) and nuclear (nc) genes. Topologies are largely congruent for ncDNA and the concatenated dataset and the genera Oleria, Hyposcada and Megoleria are recovered and well-supported, although strongly discordant genealogy between mtDNA and ncDNA suggest possible introgression among Hyposcada and Megoleria. A fourth clade containing the type species of Ollantaya is consistently recovered, and this recently synonymized name is resurrected. Clear subdivisions within Oleria separate the genus into four species groups, onega, amalda, makrena and aegle, which also correspond to differing biogeographic and elevation range characteristics. Unlike other ithomiine genera, the Oleriina show homogeneity in mimetic wing pattern, in sharp contrast to the emerging paradigm that mimetic shifts have enhanced diversification in the tribe. Our results show a potentially more important role for geographic isolation in the diversification of the Oleriina compared to other Ithomiini studied to date and provide a framework for more detailed biogeographical studies, in addition to a rare opportunity for comparative analyses with other neotropical groups.
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Affiliation(s)
- Donna Lisa de-Silva
- Department of Genetics, Evolution and Environment, University College London, Wolfson House, 4 Stephenson Way, London NW1 2HE, UK.
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Abstract
Color pattern mimicry has long been held up as a powerful example of natural selection. A recent study supports the theory by describing Müllerian mimicry rings in Appalachian millipedes that are analogous to those observed in tropical butterflies.
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Tobias JA, Seddon N. SIGNAL DESIGN AND PERCEPTION INHYPOCNEMISANTBIRDS: EVIDENCE FOR CONVERGENT EVOLUTION VIA SOCIAL SELECTION. Evolution 2009; 63:3168-89. [DOI: 10.1111/j.1558-5646.2009.00795.x] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bocak L, Yagi T. Evolution of mimicry patterns in Metriorrhynchus (Coleoptera: Lycidae): the history of dispersal and speciation in southeast Asia. Evolution 2009; 64:39-52. [PMID: 19674098 DOI: 10.1111/j.1558-5646.2009.00812.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The concept of Müllerian mimicry suggests convergent evolution to an intermediate pattern and does not predict polymorphism in mimicry rings. We examined the evolution of mimicry patterns and the order of divergence of various factors, including the role of aposematic patterns in speciation, in a clade of net-winged beetles with a robust phylogeny that suggests that they dispersed from the Australian to Asian plate. We found strong evidence for the evolution of mimicry via advergence in Metriorrhynchus because older patterns are represented in the Oriental region within more than 100 species of lycids from several lineages. Advergence was likely the cause of the observed intraspecific polymorphism in contrast to the predicted universal monomorphism. Polymorphism was found in populations of two species in Sumatra and Borneo and in populations fine-tuned to subtle variants in various habitats. The advergence is likely to be based on the small population sizes of immigrants. The differences in population sizes result in much higher benefits for dispersing species than native populations. Speciation was trigged by the divergence in aposematic coloration, and the genetic differences accumulated slowly during incomplete isolation. We assumed that the differentiation in genitalia through sexual selection ultimately reinforced speciation initiated by the shift between mimicry patterns.
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Affiliation(s)
- Ladislav Bocak
- Department of Zoology, Faculty of Science, Palacky University, tr Svobody 26, 771 46 Olomouc, Czech Republic.
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Abstract
Papilio swallowtail butterflies exhibit a remarkable diversity of Batesian mimicry, manifested in several sex-limited and polymorphic types. There is little understanding of how this diversity is distributed within Papilio, and how different mimicry types have evolved in relation to each other. To answer these questions, I present a graphical model that connects various mimicry types by hypothetical character state changes within a phylogenetic framework. A maximum likelihood analysis of evolution of mimicry types on the Papilio phylogeny showed that sexually monomorphic mimicry and female-limited mimicry have evolved repeatedly but predominantly independently in different clades. However, transitions between these mimicry types are rarely observed. The frequency distribution of character state changes was skewed in favor of the evolution of mimicry, whereas many theoretically plausible character state changes, especially evolutionary loss of mimicry, were not evident. I discuss these findings in relation to studying the tempo of evolutionary change, loss of traits, and directionality and connectivity among character states. The pathway approach and phylogenetic patterns of mimicry demonstrated in Papilio are useful to test novel hypotheses regarding the diversity and evolutionary directionality of Batesian mimicry in other systems.
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Affiliation(s)
- Krushnamegh Kunte
- FAS Center for Systems Biology, Harvard University, Cambridge, Massachusetts 02138, USA.
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Elias M, Joron M, Willmott K, Silva-Brandão KL, Kaiser V, Arias CF, Gomez Piñerez LM, Uribe S, Brower AVZ, Freitas AVL, Jiggins CD. Out of the Andes: patterns of diversification in clearwing butterflies. Mol Ecol 2009; 18:1716-29. [PMID: 19386035 DOI: 10.1111/j.1365-294x.2009.04149.x] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M Elias
- NERC Centre for Population Biology, Imperial College London, Silwood Park Campus, Ascot, UK.
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Arnold ML, Sapir Y, Martin NH. Review. Genetic exchange and the origin of adaptations: prokaryotes to primates. Philos Trans R Soc Lond B Biol Sci 2008; 363:2813-20. [PMID: 18522920 DOI: 10.1098/rstb.2008.0021] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Data supporting the occurrence of adaptive trait transfer (i.e. the transfer of genes and thus the phenotype of an adaptive trait through viral recombination, lateral gene transfer or introgressive hybridization) are provided in this review. Specifically, we discuss examples of lateral gene transfer and introgressive hybridization that have resulted in the transfer or de novo origin of adaptations. The evolutionary clades in which this process has been identified include all types of organisms. However, we restrict our discussion to bacteria, fungi, plants and animals. Each of these examples reflects the same consequence, namely that the transfer of genetic material, through whatever mechanism, may result in adaptive evolution. In particular, each of the events discussed has been inferred to impact adaptations to novel environmental settings in the recipient lineage.
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Affiliation(s)
- Michael L Arnold
- Department of Genetics, University of Georgia, Athens, GA 30602, USA.
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Raxworthy CJ, Pearson RG, Zimkus BM, Reddy S, Deo AJ, Nussbaum RA, Ingram CM. Continental speciation in the tropics: contrasting biogeographic patterns of divergence in theUroplatusleaf-tailed gecko radiation of Madagascar. J Zool (1987) 2008. [DOI: 10.1111/j.1469-7998.2008.00460.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Elias M, Hill RI, Willmott KR, Dasmahapatra KK, Brower AVZ, Mallet J, Jiggins CD. Limited performance of DNA barcoding in a diverse community of tropical butterflies. Proc Biol Sci 2008; 274:2881-9. [PMID: 17785265 PMCID: PMC3227132 DOI: 10.1098/rspb.2007.1035] [Citation(s) in RCA: 201] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
DNA 'barcoding' relies on a short fragment of mitochondrial DNA to infer identification of specimens. The method depends on genetic diversity being markedly lower within than between species. Closely related species are most likely to share genetic variation in communities where speciation rates are rapid and effective population sizes are large, such that coalescence times are long. We assessed the applicability of DNA barcoding (here the 5' half of the cytochrome c oxidase I) to a diverse community of butterflies from the upper Amazon, using a group with a well-established morphological taxonomy to serve as a reference. Only 77% of species could be accurately identified using the barcode data, a figure that dropped to 68% in species represented in the analyses by more than one geographical race and at least one congener. The use of additional mitochondrial sequence data hardly improved species identification, while a fragment of a nuclear gene resolved issues in some of the problematic species. We acknowledge the utility of barcodes when morphological characters are ambiguous or unknown, but we also recommend the addition of nuclear sequence data, and caution that species-level identification rates might be lower in the most diverse habitats of our planet.
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Affiliation(s)
- Marianne Elias
- Institute of Evolutionary Biology, University of Edinburgh, West Mains Road, Edinburgh EH9 3JT, UK.
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Duftner N, Sefc KM, Koblmüller S, Salzburger W, Taborsky M, Sturmbauer C. Parallel evolution of facial stripe patterns in the Neolamprologus brichardi/pulcher species complex endemic to Lake Tanganyika. Mol Phylogenet Evol 2007; 45:706-15. [PMID: 17881250 DOI: 10.1016/j.ympev.2007.08.001] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2007] [Revised: 08/02/2007] [Accepted: 08/07/2007] [Indexed: 11/22/2022]
Abstract
Colour pattern diversity can be due to random processes or to natural or sexual selection. Consequently, similarities in colour patterns are not always correlated with common ancestry, but may result from convergent evolution under shared selection pressures or drift. Neolamprologus brichardi and Neolamprologus pulcher have been described as two distinct species based on differences in the arrangement of two dark bars on the operculum. Our study uses DNA sequences of the mitochondrial control region to show that relatedness of haplotypes disagrees with species assignment based on head colour pattern. This suggests repeated parallel evolution of particular stripe patterns. The complete lack of shared haplotypes between populations of the same or different phenotypes reflects strong philopatric behaviour, possibly induced by the cooperative breeding mode in which offspring remain in their natal territory and serve as helpers until they disperse to nearby territories or take over a breeding position. Concordant phylogeographic patterns between N. brichardi/N. pulcher populations and other rock-dwelling cichlids suggest that the same colonization routes have been taken by sympatric species and that these routes were affected by lake level fluctuations in the past.
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Affiliation(s)
- Nina Duftner
- Department of Zoology, University of Graz, Universitätsplatz 2, A-8010 Graz, Austria
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Brown KS, Freitas AVL, Wahlberg N, Von Schoultz B, Saura AO, Saura A. Chromosomal evolution in the South American Nymphalidae. Hereditas 2007; 144:137-48. [PMID: 17850598 DOI: 10.1111/j.2007.0018-0661.02015.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
We give the chromosome numbers of about 80 species or subspecies of Biblidinae as well as of numbers of neotropical Libytheinae (one species), Cyrestinae (4) Apaturinae (7), Nymphalinae (about 40), Limenitidinae (16) and Heliconiinae (11). Libytheana has about n=32, the Biblidinae, Apaturinae and Nymphalinae have in general n=31, the Limenitidinae have n=30, the few Argynnini n=31 and the few species of Acraeni studied have also mostly n=31. The results agree with earlier data from the Afrotropical species of these taxa. We supplement these data with our earlier observations on Heliconiini, Danainae and the Neotropical Satyroid taxa. The lepidopteran modal n=29-31 represents clearly the ancestral condition among the Nymphalidae, from which taxa with various chromosome numbers have differentiated. The overall results show that Neotropical taxa have a tendency to evolve karyotype instability, which is in stark contrast to the otherwise stable chromosome numbers that characterize both Lepidoptera and Trichoptera.
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Affiliation(s)
- Keith S Brown
- Museu de História Natural and Departamento de Zoologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
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Perret M, Chautems A, Spichiger R, Barraclough TG, Savolainen V. THE GEOGRAPHICAL PATTERN OF SPECIATION AND FLORAL DIVERSIFICATION IN THE NEOTROPICS: THE TRIBE SINNINGIEAE (GESNERIACEAE) AS A CASE STUDY. Evolution 2007; 61:1641-60. [PMID: 17598746 DOI: 10.1111/j.1558-5646.2007.00136.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The geographical pattern of speciation and the relationship between floral variation and species ranges were investigated in the tribe Sinningieae (Gesneriaceae), which is found mainly in the Atlantic forests of Brazil. Geographical distribution data recorded on a grid system of 0.5 x 0.5 degree intervals and a near-complete species-level phylogenetic tree of Sinningieae inferred from a simultaneous analysis of seven DNA regions were used to address the role of geographical isolation in speciation. Geographical range overlaps between sister lineages were measured across all nodes in the phylogenetic tree and analyzed in relation to relative ages estimated from branch lengths. Although there are several cases of species sympatry in Sinningieae, patterns of sympatry between sister taxa support the predominance of allopatric speciation. The pattern of sympatry between sister taxa is consistent with range shifts following allopatric speciation, except in one clade, in which the overlapping distribution of recent sister species indicates speciation within a restricted geographical area and involving changes in pollinators and habitats. The relationship between floral divergence and regional sympatry was also examined by analyzing floral contrasts, phenological overlap, and the degree of sympatry between sister clades. Morphological contrast between flowers is not increased in sympatry and phenological divergence is more apparent between allopatric clades than between sympatric clades. Therefore, our results failed to indicate a tendency for sympatric taxa to minimize morphological and phenological overlap (geographic exclusion and/or character displacement hypotheses). Instead, they point toward adaptation in phenology to local conditions and buildup of sympatries at random with respect to flower morphology. Additional studies at a lower geographical scale are needed to identify truely coexisting species and the components of their reproductive isolation.
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Affiliation(s)
- Mathieu Perret
- Conservatoire and Jardin botaniques, CH-1292 Geneva, Switzerland.
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