1
|
Griffing AH, Keating SE, Pinto BJ, Nielsen SV, Gamble T. Clarifying a male color morph of Sphaerodactylus macrolepis Gnther, 1859 and resolving the taxonomic confusion on Saint Croix. Zootaxa 2023; 5343:273-280. [PMID: 38221376 DOI: 10.11646/zootaxa.5343.3.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Indexed: 01/16/2024]
Abstract
Many species of sphaerodactyl gecko exhibit sexual dichromatism. In particular, dichromatism plays an important role in intersexual signaling for Sphaerodactylus. Furthermore, some species exhibit polymorphism in male color and pattern. Here, we describe a regional male color morph of Sphaerodactylus macrolepis from St. Croix. After generating both mitochondrial and nuclear phylogenies, we found that individuals with the St. Croix-specific yellow/orange head morph are part of the S. macrolepis clade. This distinct color morph likely contributed to the turbulent taxonomic history of the S. macrolepis species group. Given the documented diversity of the color patterns in this group and that sexual signals evolve rapidly, we suggest S. macrolepis is an excellent group to study the ecological and evolutionary consequences of dichromatism and polymorphism.
Collapse
Affiliation(s)
- Aaron H Griffing
- Department of Chemical & Biological Engineering; Princeton University; William Street; Princeton; New Jersey 08544; USA; Department of Molecular Biology; Princeton University; Washington Road; Princeton; New Jersey 08544; USA; Milwaukee Public Museum; 800 W. Wells Street; Milwaukee; Wisconsin 53233; USA.
| | - Shannon E Keating
- Molecular and Genomic Pathology Lab; University of Pittsburgh Medical Center; 200 Lothrop Street; Pittsburgh; Pennsylvania; USA.
| | - Brendan J Pinto
- Milwaukee Public Museum; 800 W. Wells Street; Milwaukee; Wisconsin 53233; USA; School of Life Sciences; Arizona State University; 427 E. Tyler Mall; Tempe; Arizona 85281; USA; Center for Evolution and Medicine; Arizona State University; 401 E. Tyler Mall; Tempe; Arizona 85287; USA.
| | - Stuart V Nielsen
- Department of Biological Sciences; Louisiana State University Shreveport; 1 University Place; Shreveport; Louisiana 71115; USA; Department of Biological Sciences; Marquette University; P.O. Box 1881; Milwaukee; Wisconsin 53233; USA.
| | - Tony Gamble
- Milwaukee Public Museum; 800 W. Wells Street; Milwaukee; Wisconsin 53233; USA.
| |
Collapse
|
2
|
Yuan ML, Frederick JH, McGuire JA, Bell RC, Smith SR, Fenton C, Cassius J, Williams R, Wang IJ, Powell R, Hedges SB. Endemism, invasion, and overseas dispersal: the phylogeographic history of the Lesser Antillean frog, Eleutherodactylus johnstonei. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02803-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AbstractCryptogenic species are those whose native and introduced ranges are unknown. The extent and long history of human migration rendered numerous species cryptogenic. Incomplete knowledge regarding the origin and native habitat of a species poses problems for conservation management and may confound ecological and evolutionary studies. The Lesser Antilles pose a particular challenge with regard to cryptogenic species because these islands have been anthropogenically connected since before recorded history. Here, we use population genetic and phylogeographic tools in an attempt to determine the origin of Eleutherodactylus johnstonei, a frog species with a potentially widespread introduced range and whose native range within the Lesser Antilles is unknown. Based on elevated estimates of genetic diversity and within-island geographic structure not present elsewhere in the range, we identify Montserrat as the native island of E. johnstonei. We also document two major clades within E. johnstonei, only one of which is the primary source of introduced populations throughout the Americas. Our results demonstrate the utility of genetic tools for resolving cryptogenic species problems and highlight E. johnstonei as a potential system for understanding differences in invasive potential among sister lineages.
Collapse
|
3
|
Multilocus phylogeny, species age and biogeography of the Lesser Antillean anoles. Mol Phylogenet Evol 2018; 127:682-695. [DOI: 10.1016/j.ympev.2018.06.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 06/05/2018] [Accepted: 06/06/2018] [Indexed: 11/21/2022]
|
4
|
de la Harpe M, Paris M, Karger DN, Rolland J, Kessler M, Salamin N, Lexer C. Molecular ecology studies of species radiations: current research gaps, opportunities and challenges. Mol Ecol 2017; 26:2608-2622. [PMID: 28316112 DOI: 10.1111/mec.14110] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 02/11/2017] [Accepted: 03/06/2017] [Indexed: 12/28/2022]
Abstract
Understanding the drivers and limits of species radiations is a crucial goal of evolutionary genetics and molecular ecology, yet research on this topic has been hampered by the notorious difficulty of connecting micro- and macroevolutionary approaches to studying the drivers of diversification. To chart the current research gaps, opportunities and challenges of molecular ecology approaches to studying radiations, we examine the literature in the journal Molecular Ecology and revisit recent high-profile examples of evolutionary genomic research on radiations. We find that available studies of radiations are highly unevenly distributed among taxa, with many ecologically important and species-rich organismal groups remaining severely understudied, including arthropods, plants and fungi. Most studies employed molecular methods suitable over either short or long evolutionary time scales, such as microsatellites or restriction site-associated DNA sequencing (RAD-seq) in the former case and conventional amplicon sequencing of organellar DNA in the latter. The potential of molecular ecology studies to address and resolve patterns and processes around the species level in radiating groups of taxa is currently limited primarily by sample size and a dearth of information on radiating nuclear genomes as opposed to organellar ones. Based on our literature survey and personal experience, we suggest possible ways forward in the coming years. We touch on the potential and current limitations of whole-genome sequencing (WGS) in studies of radiations. We suggest that WGS and targeted ('capture') resequencing emerge as the methods of choice for scaling up the sampling of populations, species and genomes, including currently understudied organismal groups and the genes or regulatory elements expected to matter most to species radiations.
Collapse
Affiliation(s)
- Marylaure de la Harpe
- Department of Biology, University of Fribourg, Chemin du Musée 10, Fribourg, CH-1700, Switzerland.,Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, A-1030, Austria
| | - Margot Paris
- Department of Biology, University of Fribourg, Chemin du Musée 10, Fribourg, CH-1700, Switzerland
| | - Dirk N Karger
- Department of Systematic and Evolutionary Botany, University of Zurich, Zollikerstrasse 107, Zürich, CH-8008, Switzerland
| | - Jonathan Rolland
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, CH-1015, Switzerland.,Swiss Institute of Bioinformatics, Quartier Sorge, Lausanne, CH-1015, Switzerland
| | - Michael Kessler
- Department of Systematic and Evolutionary Botany, University of Zurich, Zollikerstrasse 107, Zürich, CH-8008, Switzerland
| | - Nicolas Salamin
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, CH-1015, Switzerland.,Swiss Institute of Bioinformatics, Quartier Sorge, Lausanne, CH-1015, Switzerland
| | - Christian Lexer
- Department of Biology, University of Fribourg, Chemin du Musée 10, Fribourg, CH-1700, Switzerland.,Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, A-1030, Austria
| |
Collapse
|
5
|
Dziki A, Binford GJ, Coddington JA, Agnarsson I. Spintharus flavidus in the Caribbean-a 30 million year biogeographical history and radiation of a 'widespread species'. PeerJ 2015; 3:e1422. [PMID: 26618089 PMCID: PMC4655100 DOI: 10.7717/peerj.1422] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 11/02/2015] [Indexed: 01/30/2023] Open
Abstract
The Caribbean island biota is characterized by high levels of endemism, the result of an interplay between colonization opportunities on islands and effective oceanic barriers among them. A relatively small percentage of the biota is represented by ‘widespread species,’ presumably taxa for which oceanic barriers are ineffective. Few studies have explored in detail the genetic structure of widespread Caribbean taxa. The cobweb spider Spintharus flavidus Hentz, 1850 (Theridiidae) is one of two described Spintharus species and is unique in being widely distributed from northern N. America to Brazil and throughout the Caribbean. As a taxonomic hypothesis, Spintharus “flavidus” predicts maintenance of gene flow among Caribbean islands, a prediction that seems contradicted by known S. flavidus biology, which suggests limited dispersal ability. As part of an extensive survey of Caribbean arachnids (project CarBio), we conducted the first molecular phylogenetic analysis of S. flavidus with the primary goal of testing the ‘widespread species’ hypothesis. Our results, while limited to three molecular loci, reject the hypothesis of a single widespread species. Instead this lineage seems to represent a radiation with at least 16 species in the Caribbean region. Nearly all are short range endemics with several distinct mainland groups and others are single island endemics. While limited taxon sampling, with a single specimen from S. America, constrains what we can infer about the biogeographical history of the lineage, clear patterns still emerge. Consistent with limited overwater dispersal, we find evidence for a single colonization of the Caribbean about 30 million years ago, coinciding with the timing of the GAARLandia landbridge hypothesis. In sum, S. “flavidus” is not a single species capable of frequent overwater dispersal, but rather a 30 my old radiation of single island endemics that provides preliminary support for a complex and contested geological hypothesis.
Collapse
Affiliation(s)
- Austin Dziki
- Department of Biology, University of Vermont , Burlington, VT , USA
| | - Greta J Binford
- Department of Biology, Lewis and Clark College , Portland, OR , USA
| | - Jonathan A Coddington
- Department of Entomology, National Museum of Natural History, Smithsonian Institution , Washington, DC , USA
| | - Ingi Agnarsson
- Department of Biology, University of Vermont , Burlington, VT , USA ; Department of Entomology, National Museum of Natural History, Smithsonian Institution , Washington, DC , USA
| |
Collapse
|
6
|
Torstrom SM, Pangle KL, Swanson BJ. Shedding subspecies: The influence of genetics on reptile subspecies taxonomy. Mol Phylogenet Evol 2014; 76:134-43. [DOI: 10.1016/j.ympev.2014.03.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 03/08/2014] [Accepted: 03/11/2014] [Indexed: 10/25/2022]
|
7
|
Monceau K, Cézilly F, Moreau J, Motreuil S, Wattier R. Colonisation and diversification of the Zenaida Dove (Zenaida aurita) in the Antilles: phylogeography, contemporary gene flow and morphological divergence. PLoS One 2013; 8:e82189. [PMID: 24349217 PMCID: PMC3861367 DOI: 10.1371/journal.pone.0082189] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 10/22/2013] [Indexed: 11/19/2022] Open
Abstract
Caribbean avifaunal biogeography has been mainly studied based on mitochondrial DNA. Here, we investigated both past and recent island differentiation and micro-evolutionary changes in the Zenaida Dove (Zenaida aurita) based on combined information from one mitochondrial (Cytochrome c Oxydase subunit I, COI) and 13 microsatellite markers and four morphological characters. This Caribbean endemic and abundant species has a large distribution, and two subspecies are supposed to occur: Z. a. zenaida in the Greater Antilles (GA) and Z. a. aurita in the Lesser Antilles (LA). Doves were sampled on two GA islands (Puerto Rico and the British Virgin Islands) and six LA islands (Saint Barthélemy, Guadeloupe, Les Saintes, Martinique, Saint Lucia and Barbados). Eleven COI haplotypes were observed that could be assembled in two distinct lineages, with six specific to GA, four to LA, the remaining one occurring in all islands. However, the level of divergence between those two lineages was too moderate to fully corroborate the existence of two subspecies. Colonisation of the studied islands appeared to be a recent process. However, both phenotypic and microsatellite data suggest that differentiation is already under way between all of them, partly associated with the existence of limited gene flow. No isolation by distance was observed. Differentiation for morphological traits was more pronounced than for neutral markers. These results suggest that despite recent colonisation, genetic drift and/or restricted gene flow are promoting differentiation for neutral markers. Variation in selective pressures between islands may explain the observed phenotypic differentiation.
Collapse
Affiliation(s)
- Karine Monceau
- Université de Bourgogne, UMR CNRS 6282 Biogéosciences, Equipe Ecologie Evolutive, Dijon, France
| | - Frank Cézilly
- Université de Bourgogne, UMR CNRS 6282 Biogéosciences, Equipe Ecologie Evolutive, Dijon, France
- Institut Universitaire de France, France
| | - Jérôme Moreau
- Université de Bourgogne, UMR CNRS 6282 Biogéosciences, Equipe Ecologie Evolutive, Dijon, France
| | - Sébastien Motreuil
- Université de Bourgogne, UMR CNRS 6282 Biogéosciences, Equipe Ecologie Evolutive, Dijon, France
| | - Rémi Wattier
- Université de Bourgogne, UMR CNRS 6282 Biogéosciences, Equipe Ecologie Evolutive, Dijon, France
| |
Collapse
|
8
|
Díaz-Lameiro AM, Oleksyk TK, Bird-Picó FJ, Martínez-Cruzado JC. Colonization of islands in the Mona Passage by endemic dwarf geckoes (genus Sphaerodactylus) reconstructed with mitochondrial phylogeny. Ecol Evol 2013; 3:4488-500. [PMID: 24340189 PMCID: PMC3856748 DOI: 10.1002/ece3.770] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 07/14/2013] [Accepted: 08/12/2013] [Indexed: 11/08/2022] Open
Abstract
Little is known about the natural history of the Sphaerodactylus species endemic to the three islands located in the Mona Passage separating the Greater Antillean islands of Hispaniola and Puerto Rico. In this study, parts of two mitochondrial genes, 16S rRNA and 12S rRNA, were sequenced to determine the relationships between the sphaerodactylids that live in the Mona Passage and other Caribbean species from the same genus. While the main goal was to identify the biogeographical origin of these species, we also identified a genetically distinct type of dwarf gecko that warrants future evaluation as a possible new species. According to the reconstructed phylogenies, we propose a stepwise model of colonization wherein S. nicholsi from southwestern Puerto Rico or a very close ancestor gave rise through a founder event to Sphaerodactylus monensis on Mona Island. In a similar fashion, S. monensis or a very close ancestor on Mona Island gave rise to S. levinsi on Desecheo Island. This study also suggests that the most recent common ancestor between the species from the islands in the Mona Passage and Puerto Rico existed approximately 3 MYA.
Collapse
Affiliation(s)
- Alondra M Díaz-Lameiro
- Department of Biology, University of Puerto Rico at Mayagüez Call Box 9000, Mayagüez, Puerto Rico, 00681-9000
| | | | | | | |
Collapse
|
9
|
Synergy between Allopatry and Ecology in Population Differentiation and Speciation. INTERNATIONAL JOURNAL OF ECOLOGY 2012. [DOI: 10.1155/2012/273413] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The general diversity pattern of the Caribbean anole radiation has been described in detail; however, the actual mechanisms at the origin of their diversification remain controversial. In particular, the role of ecological speciation, and the relative importance of divergence in allopatry and in parapatry, is debated. We describe the genetic structure of anole populations across lineage contact zones and ecotones to investigate the effect of allopatric divergence, natural selection, and the combination of both factors on population differentiation. Allopatric divergence had no significant impact on differentiation across the lineage boundary, while a clear bimodality in genetic and morphological characters was observed across an ecotone within a single lineage. Critically, the strongest differentiation was observed when allopatry and ecology act together, leading to a sharp reduction in gene flow between two lineages inhabiting different habitats. We suggest that, for Caribbean anoles to reach full speciation, a synergistic combination of several historical and ecological factors may be requisite.
Collapse
|
10
|
PAEMELAERE EVIAD, GUYER CRAIG, DOBSON FSTEPHEN. A phylogenetic framework for the evolution of female polymorphism in anoles. Biol J Linn Soc Lond 2011. [DOI: 10.1111/j.1095-8312.2011.01742.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
11
|
Heads M. Old Taxa on Young Islands: A Critique of the Use of Island Age to Date Island-Endemic Clades and Calibrate Phylogenies. Syst Biol 2010; 60:204-18. [DOI: 10.1093/sysbio/syq075] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Michael Heads
- Buffalo Museum of Science, 1020 Humboldt Parkway, Buffalo, NY 14211-1293, USA
| |
Collapse
|
12
|
Losos J. Adaptive Radiation, Ecological Opportunity, and Evolutionary Determinism. Am Nat 2010; 175:623-39. [DOI: 10.1086/652433] [Citation(s) in RCA: 457] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
13
|
ROBERTSON JEANNEMARIE, ROSENBLUM ERICABREE. Rapid divergence of social signal coloration across the White Sands ecotone for three lizard species under strong natural selection. Biol J Linn Soc Lond 2009. [DOI: 10.1111/j.1095-8312.2009.01291.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
14
|
|
15
|
Thorpe RS, Surget-Groba Y, Johansson H. The relative importance of ecology and geographic isolation for speciation in anoles. Philos Trans R Soc Lond B Biol Sci 2008; 363:3071-81. [PMID: 18579479 DOI: 10.1098/rstb.2008.0077] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The biogeographic patterns in sexually reproducing animals in island archipelagos may be interpreted as reflecting the importance of allopatric speciation. However, as the forms are allopatric, their reproductive isolation is largely untestable. A historical perspective integrating geology and molecular phylogeny reveals specific cases where ancient precursor islands coalesce, which allows the application of population genetics to critically test genetic isolation. The Anolis populations on Martinique in the Lesser Antilles are one such case where species-level populations on ancient precursor islands (ca 6-8 Myr BP) have met relatively recently. The distribution of the mtDNA lineages is tightly linked to the precursor island, but the population genetic analysis of microsatellite variation in large samples shows no evidence of restricted genetic exchange between these forms in secondary contact. This tests, and rejects, the hypothesis of simple allopatric speciation in these forms. By contrast, Martinique has pronounced environmental zonation, to which anoles are known to adapt. The population genetic analysis shows restricted genetic exchange across the ecotone between xeric coastal habitat and montane rainforest. This does not indicate full ecological speciation in these forms, but it does suggest the relative importance of the role of ecology in speciation in general.
Collapse
Affiliation(s)
- Roger S Thorpe
- School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, UK.
| | | | | |
Collapse
|