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Sánchez KI, Recknagel H, Elmer KR, Avila LJ, Morando M. Tracing evolutionary trajectories in the presence of gene flow in South American temperate lizards (Squamata: Liolaemus kingii group). Evolution 2024; 78:716-733. [PMID: 38262697 DOI: 10.1093/evolut/qpae009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/20/2023] [Accepted: 01/17/2024] [Indexed: 01/25/2024]
Abstract
Evolutionary processes behind lineage divergence often involve multidimensional differentiation. However, in the context of recent divergences, the signals exhibited by each dimension may not converge. In such scenarios, incomplete lineage sorting, gene flow, and scarce phenotypic differentiation are pervasive. Here, we integrated genomic (RAD loci of 90 individuals), phenotypic (linear and geometric traits of 823 and 411 individuals, respectively), spatial, and climatic data to reconstruct the evolutionary history of a speciation continuum of liolaemid lizards (Liolaemus kingii group). Specifically, we (a) inferred the population structure of the group and contrasted it with the phenotypic variability; (b) assessed the role of postdivergence gene flow in shaping phylogeographic and phenotypic patterns; and (c) explored ecogeographic drivers of diversification across time and space. We inferred eight genomic clusters exhibiting leaky genetic borders coincident with geographic transitions. We also found evidence of postdivergence gene flow resulting in transgressive phenotypic evolution in one species. Predicted ancestral niches unveiled suitable areas in southern and eastern Patagonia during glacial and interglacial periods. Our study underscores integrating different data and model-based approaches to determine the underlying causes of diversification, a challenge faced in the study of recently diverged groups. We also highlight Liolaemus as a model system for phylogeographic and broader evolutionary studies.
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Affiliation(s)
- Kevin I Sánchez
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales, Consejo Nacional de Investigaciones Científicas y Técnicas (IPEEC-CONICET), Puerto Madryn, Chubut, Argentina
| | - Hans Recknagel
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Kathryn R Elmer
- School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Luciano J Avila
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales, Consejo Nacional de Investigaciones Científicas y Técnicas (IPEEC-CONICET), Puerto Madryn, Chubut, Argentina
| | - Mariana Morando
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales, Consejo Nacional de Investigaciones Científicas y Técnicas (IPEEC-CONICET), Puerto Madryn, Chubut, Argentina
- Departamento de Biología y Ambiente, Universidad Nacional de la Patagonia San Juan Bosco, Sede Puerto Madryn, Puerto Madryn, Chubut, Argentina
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Becker LA, Battini MA, Barriga JP, Azpelicueta MM, Johnson JB, Cussac VE. Morphologic and genetic variation within a relict Andean catfish, Hatcheria macraei , and its relationship with Trichomycterus areolatus and Bullockia maldonadoi (Siluriformes: Trichomycteridae). AN ACAD BRAS CIENC 2023; 95:e20211007. [PMID: 37162081 DOI: 10.1590/0001-3765202320211007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 04/15/2022] [Indexed: 05/11/2023] Open
Abstract
The South American siluriform fishes are found primarily in the Neotropical region, north and east of the Colorado River of Argentina, with a few relict species distributed southward and westward on both sides of the Andes Mountains. Three of these, the closely related trichomycterids Hatcheria macraei, Trichomycterus areolatus and Bullockia maldonadoi, have been subject to historical taxonomic and nomenclatural arrangements. Here, we amplify a 652-bp fragment of COI mtDNA from 55 H. macraei individuals and use publicly available Cytb mtDNA sequences of the three taxa to assess their relationship, genetic variation and haplotype distribution in relation to hydrographic basins. In addition, we extend a recent morphometric study on H. macraei by analyzing body shape in 447 individuals collected from 24 populations across their entire cis-Andean distribution. We identified some lineages previously assigned to T. areolatus that show a closer relationship to either B. maldonadoi or H. macraei, revealing new boundaries to their currently known trans-Andean distribution. We found a great morphologic variation among H. macraei populations and a high genetic variation in H. macraei, T. areolatus and B. maldonadoi associated with river basins. We highlight further integrative studies are needed to enhance our knowledge of the southern Andean trichomycterid diversity.
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Affiliation(s)
- Leandro A Becker
- CONICET, Instituto de Diversidad y Evolución Austral (IDEAus), 9120 Puerto Madryn, Chubut, Argentina
| | - Miguel A Battini
- Universidad Nacional del Comahue, CONICET, Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA), 8400 Bariloche, Río Negro, Argentina
| | - Juan P Barriga
- Universidad Nacional del Comahue, CONICET, Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA), 8400 Bariloche, Río Negro, Argentina
| | - María M Azpelicueta
- Universidad Nacional de La Plata, CONICET, Facultad de Ciencias Naturales y Museo, 1900 La Plata, Buenos Aires, Argentina
| | - Jerald B Johnson
- Bean Life Science Museum, Department of Biology and Monte L., Brigham Young University, Provo, UT 84602, USA
| | - Víctor E Cussac
- Universidad Nacional del Comahue, CONICET, Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales (IPATEC), 8400 Bariloche, Río Negro, Argentina
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3
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Sepúlveda‐Espinoza F, Bertin‐Benavides A, Hasbún R, Toro‐Núñez Ó, Varas‐Myrik A, Alarcón D, Guillemin M. The impact of Pleistocene glaciations and environmental gradients on the genetic structure of Embothrium coccineum. Ecol Evol 2022; 12:e9474. [PMID: 36381388 PMCID: PMC9646505 DOI: 10.1002/ece3.9474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/02/2022] [Accepted: 08/22/2022] [Indexed: 11/11/2022] Open
Abstract
The South American temperate forests were subjected to drastic topographic and climatic changes during the Pliocene-Pleistocene as a consequence of the Andean orogeny and glacial cycles. Such changes are common drivers of genetic structure and adaptation. Embothrium coccineum (Proteaceae) is an emblematic tree of the South American temperate forest (around 20°S of latitude) that has strongly been affected by topographic and climatic events. Previous studies have shown a marked genetic structure in this species, and distinct ecotypes have been described. Yet, little is known about their adaptive genetic responses. The main goal of this study was to investigate the effects of historical and contemporary landscape features affecting the genetic diversity and connectivity of E. coccineum throughout its current natural distribution. Using over 2000 single nucleotide polymorphisms (SNPs), we identified two genetic groups (a Northern and a Central-Southern group) that diverged around 2.8 million years ago. The level of genetic structure was higher among populations within the Northern genetic group than within the Central-Southern group. We propose that these differences in genetic structure may be due to differences in the assemblages of pollinators and in the evolutionary histories of the two genetic groups. Moreover, the data displayed a strong pattern of isolation by the environment in E. coccineum, suggesting that selection could have led to adaptive divergence among localities. We propose that in the Chilean temperate forest, the patterns of genetic variation in E. coccineum reflect both a Quaternary phylogenetic imprint and signatures of selection as a consequence of a strong environmental gradient.
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Affiliation(s)
- Francisco Sepúlveda‐Espinoza
- Laboratorio de Epigenética Vegetal, Departamento de Silvicultura, Facultad de Ciencias ForestalesUniversidad de ConcepciónConcepciónChile
- Facultad de Ciencias, Instituto de Ciencias Ambientales y EvolutivasUniversidad Austral de ChileValdiviaChile
| | - Ariana Bertin‐Benavides
- Laboratorio de Epigenética Vegetal, Departamento de Silvicultura, Facultad de Ciencias ForestalesUniversidad de ConcepciónConcepciónChile
- ONG Conciencia SurConcepciónChile
- Laboratorio de Genómica Forestal, Centro de BiotecnologíaUniversidad de ConcepciónConcepciónChile
| | - Rodrigo Hasbún
- Laboratorio de Epigenética Vegetal, Departamento de Silvicultura, Facultad de Ciencias ForestalesUniversidad de ConcepciónConcepciónChile
| | - Óscar Toro‐Núñez
- Departamento de Botánica, Facultad de Ciencias Naturales y OceanográficasUniversidad de ConcepciónConcepciónChile
| | - Antonio Varas‐Myrik
- Laboratorio de Epigenética Vegetal, Departamento de Silvicultura, Facultad de Ciencias ForestalesUniversidad de ConcepciónConcepciónChile
| | - Diego Alarcón
- Departamento de Ciencias Ecológicas, Instituto de Ecología y BiodiversidadUniversidad de ChileÑuñoaChile
| | - Marie‐Laure Guillemin
- Núcleo Milenio MASH, Instituto de Ciencias Ambientales y Evolutivas, Facultad de CienciasUniversidad Austral de ChileValdiviaChile
- IRL 3614 Evolutionary Biology and Ecology of Algae, CNRSSorbonne Université, Pontificia Universidad Católica de Chile, Universidad Austral de ChileRoscoffFrance
- Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL)ValdiviaChile
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A century of stasis: Taxonomy of Ctenomys (Rodentia: Hystricomorpha) populations in northeastern Patagonia limits, Argentina. ZOOL ANZ 2022. [DOI: 10.1016/j.jcz.2022.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Benítez-Benítez C, Otero A, Ford KA, García-Moro P, Donadío S, Luceño M, Martín-Bravo S, Jiménez-Mejías P. An Evolutionary Study of Carex Subg. Psyllophorae (Cyperaceae) Sheds Light on a Strikingly Disjunct Distribution in the Southern Hemisphere, With Emphasis on Its Patagonian Diversification. FRONTIERS IN PLANT SCIENCE 2021; 12:735302. [PMID: 34819937 PMCID: PMC8606891 DOI: 10.3389/fpls.2021.735302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
Carex subgenus Psyllophorae is an engaging study group due to its early diversification compared to most Carex lineages, and its remarkable disjunct distribution in four continents corresponding to three independent sections: sect. Psyllophorae in Western Palearctic, sect. Schoenoxiphium in Afrotropical region, and sect. Junciformes in South America (SA) and SW Pacific. The latter section is mainly distributed in Patagonia and the Andes, where it is one of the few Carex groups with a significant in situ diversification. We assess the role of historical geo-climatic events in the evolutionary history of the group, particularly intercontinental colonization events and diversification processes, with an emphasis on SA. We performed an integrative study using phylogenetic (four DNA regions), divergence times, diversification rates, biogeographic reconstruction, and bioclimatic niche evolution analyses. The crown age of subg. Psyllophorae (early Miocene) supports this lineage as one of the oldest within Carex. The diversification rate probably decreased over time in the whole subgenus. Geography seems to have played a primary role in the diversification of subg. Psyllophorae. Inferred divergence times imply a diversification scenario away from primary Gondwanan vicariance hypotheses and suggest long-distance dispersal-mediated allopatric diversification. Section Junciformes remained in Northern Patagonia since its divergence until Plio-Pleistocene glaciations. Andean orogeny appears to have acted as a northward corridor, which contrasts with the general pattern of North-to-South migration for temperate-adapted organisms. A striking niche conservatism characterizes the evolution of this section. Colonization of the SW Pacific took place on a single long-distance dispersal event from SA. The little ecological changes involved in the trans-Pacific disjunction imply the preadaptation of the group prior to the colonization of the SW Pacific. The high species number of the section results from simple accumulation of morphological changes (disparification), rather than shifts in ecological niche related to increased diversification rates (radiation).
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Affiliation(s)
- Carmen Benítez-Benítez
- Botany Area, Department of Molecular Biology and Biochemical Engineering, Universidad Pablo de Olavide, Seville, Spain
| | - Ana Otero
- Grainger Bioinformatics Center, Department of Science and Education, The Field Museum, Chicago, IL, United States
| | - Kerry A. Ford
- Allan Herbarium, Manaaki-Whenua Landcare Research, Lincoln, New Zealand
| | - Pablo García-Moro
- Department of Biology (Botany), Universidad Autónoma de Madrid, Madrid, Spain
- Centro de Investigación en Biodiversidad y Cambio Global (CIBC-UAM), Universidad Autónoma de Madrid, Madrid, Spain
| | - Sabina Donadío
- Instituto de Botánica Darwinion (ANCEFN-CONICET), San Isidro, Argentina
| | - Modesto Luceño
- Botany Area, Department of Molecular Biology and Biochemical Engineering, Universidad Pablo de Olavide, Seville, Spain
| | - Santiago Martín-Bravo
- Botany Area, Department of Molecular Biology and Biochemical Engineering, Universidad Pablo de Olavide, Seville, Spain
| | - Pedro Jiménez-Mejías
- Department of Biology (Botany), Universidad Autónoma de Madrid, Madrid, Spain
- Centro de Investigación en Biodiversidad y Cambio Global (CIBC-UAM), Universidad Autónoma de Madrid, Madrid, Spain
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Ruzzante DE, Simons AP, McCracken GR, Habit E, Walde SJ. Multiple drainage reversal episodes and glacial refugia in a Patagonian fish revealed by sequenced microsatellites. Proc Biol Sci 2020; 287:20200468. [PMID: 32486985 PMCID: PMC7341911 DOI: 10.1098/rspb.2020.0468] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The rise of the southern Andes and the Quaternary glacial cycles influenced the landscape of Patagonia, affecting the phylogeographic and biogeographic patterns of its flora and fauna. Here, we examine the phylogeography of the freshwater fish, Percichthys trucha, using 53 sequenced microsatellite DNA markers. Fish (n= 835) were collected from 16 river systems (46 locations) spanning the species range on both sides of the Andes. Eleven watersheds drain to the Pacific, five of which are trans-Andean (headwaters east of Andes). The remaining five drainages empty into the Atlantic. Three analytical approaches (neighbour-joining tree, hierarchical AMOVAs, Structure) revealed evidence of historic drainage reversals: fish from four of the five trans-Andean systems (Puelo, Futalaufquen/Yelcho, Baker, Pascua) exhibited greater genetic similarity with Atlantic draining systems than with Pacific systems with headwaters west of Andes. Present-day drainage (Pacific versus Atlantic) explained only 5% of total genetic variance, while ancestral drainage explained nearly 27% of total variance. Thus, the phylogeographic structure of P. trucha is consistent with episodes of drainage reversal in multiple systems and suggests a major role for deglaciation in the genetic and indeed the geographical distribution of P. trucha in Patagonia. The study emphasizes the significant role of historical processes in the current pattern of genetic diversity and differentiation in a fish from a southern temperate region.
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Affiliation(s)
- Daniel E Ruzzante
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Annie P Simons
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada
| | | | - Evelyn Habit
- Departamento de Sistemas Acuáticos, Facultad de Ciencias Ambientales y Centro EULA, Universidad de Concepción, Concepción, Chile
| | - Sandra J Walde
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada
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New Insights into the Distribution, Physiology and Life Histories of South American Galaxiid Fishes, and Potential Threats to This Unique Fauna. DIVERSITY 2020. [DOI: 10.3390/d12050178] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
South American galaxiids occupy both Patagonia and the ichthyogeographic Chilean Province, encompassing glacial Andean deep lakes, shallow plateau lakes, reservoirs, short Pacific rivers and long Atlantic rivers. The total fish fauna includes 29 species, comprising Neotropical fishes (siluriforms and characids), galaxiids, percichthyids, atherinopsids and mugilids, two lamprey species, and several exotic fishes (salmonids, Gambusia spp. and common carp). The family Galaxiidae shares a common ancestry with the Gondwanan temperate fish fauna, played a major role in the post-glacial colonization of Andean lakes and streams, and contributes key species to the food webs. Galaxiid species occupy an enormous latitudinal gradient, show a wide variety of life history patterns and are the southernmost native freshwater fishes of the world. Knowledge of South American galaxiids has improved notably, but new challenges arise due to climate change, biological invasions, damming, aquaculture and contamination. In this changing environment, the future of South American galaxiids should be carefully considered as a legacy of the old Gondwana and a unique attribute of the freshwaters of southern South America.
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Anthropogenic invaders: historical biogeography, current genetic status and distribution range of the “peludo” Chaetophractus villosus (Xenarthra) in Patagonia and Tierra del Fuego, southern South America. MAMMALIA 2020. [DOI: 10.1515/mammalia-2019-0076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Chaetophractus villosus was once distributed from the south of Bolivia and Paraguay to the northwest of Patagonia, where the species survived in glacial refugia during Pleistocene. After the ice retreated, the species expanded its distribution further south reaching Chubut River. In the last two centuries, the species colonized the rest of Patagonia on both sides of the Andes and was introduced in Tierra del Fuego (TDF) in 1982, where it expanded its distribution range along 484 km2 until 2005. A single mitochondrial Control Region haplotype (HC) was described across Argentine Patagonia based on the low number of samples. This lack of variability was exceptional and impressive, taking into account that the northern neighboring areas of distribution are considered ancestral due to the haplotype richness. Here, we added new field and genetic data and compiled recent bibliography to update the biogeography and phylogeography of the species in southern South America. To explain the unprecedent lack of genetic variability, we discussed three main aspects: a historical biogeographic aspect related to the natural barriers for the species, a strong stochastic component, and the possible adaptive advantages of the only mitochondrial lineage detected, whose colonization and acclimatization to the new environment were mediated by man. We also estimated that the current distribution range in TDF is about 8527 km2.
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Diversification and Evolutionary Histories of Patagonian Steppe Lizards. NATURAL AND SOCIAL SCIENCES OF PATAGONIA 2020. [DOI: 10.1007/978-3-030-42752-8_9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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10
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Renny M, Acosta MC, Cofré N, Domínguez LS, Bidartondo MI, Sérsic AN. Genetic diversity patterns of arbuscular mycorrhizal fungi associated with the mycoheterotroph Arachnitis uniflora Phil. (Corsiaceae). ANNALS OF BOTANY 2017; 119:1279-1294. [PMID: 28398457 PMCID: PMC5604589 DOI: 10.1093/aob/mcx023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 02/14/2017] [Indexed: 05/30/2023]
Abstract
Background and Aims Arachnitis uniflora is a mycoheterotrophic plant that exploits arbuscular mycorrhizal fungi of neighbouring plants. We tested A. uniflora 's specificity towards fungi across its large latitudinal range, as well as the role of historical events and current environmental, geographical and altitudinal variables on fungal genetic diversity. Methods Arachnitis uniflora mycorrhizas were sampled at 25 sites. Fungal phylogenetic relationships were reconstructed, genetic diversity was calculated and the main divergent lineages were dated. Phylogeographical analysis was performed with the main fungal clade. Fungal diversity correlations with environmental factors were investigated. Key Results Glomeraceae fungi dominated, with a main clade that likely originated in the Upper Cretaceous and diversified in the Miocene. Two other arbuscular mycorrhizal fungal families not previously known to be targeted by A. uniflora were detected rarely and appear to be facultative associations. High genetic diversity, found in Bolivia and both northern and southern Patagonia, was correlated with temperature, rainfall and soil features. Conclusions Fungal genetic diversity and its distribution can be explained by the ancient evolutionary history of the target fungi and by micro-scale environmental conditions with a geographical mosaic pattern.
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Affiliation(s)
- Mauricio Renny
- Instituto Multidisciplinario de Biología Vegetal, IMBIV, UNC-CONICET, Edificio de Investigaciones Biológicas y Tecnológicas, Vélez Sársfield 1611, 5000 Córdoba, Argentina
| | - M. Cristina Acosta
- Instituto Multidisciplinario de Biología Vegetal, IMBIV, UNC-CONICET, Edificio de Investigaciones Biológicas y Tecnológicas, Vélez Sársfield 1611, 5000 Córdoba, Argentina
| | - Noelia Cofré
- Instituto Multidisciplinario de Biología Vegetal, IMBIV, UNC-CONICET, Edificio de Investigaciones Biológicas y Tecnológicas, Vélez Sársfield 1611, 5000 Córdoba, Argentina
| | - Laura S. Domínguez
- Instituto Multidisciplinario de Biología Vegetal, IMBIV, UNC-CONICET, Edificio de Investigaciones Biológicas y Tecnológicas, Vélez Sársfield 1611, 5000 Córdoba, Argentina
| | - Martin I. Bidartondo
- Department of Life Sciences, Imperial College London, London SW7 2AZ, UK
- Jodrell Laboratory, Royal Botanic Gardens, Kew TW9 3DS, UK
| | - Alicia N. Sérsic
- Instituto Multidisciplinario de Biología Vegetal, IMBIV, UNC-CONICET, Edificio de Investigaciones Biológicas y Tecnológicas, Vélez Sársfield 1611, 5000 Córdoba, Argentina
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Medina CD, Avila LJ, Sites JW, Morando M. Phylogeographic history of Patagonian lizards of theLiolaemus elongatuscomplex (Iguania: Liolaemini) based on mitochondrial and nuclear DNA sequences. J ZOOL SYST EVOL RES 2017. [DOI: 10.1111/jzs.12163] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Cintia Débora Medina
- Grupo de Herpetología Patagónica; Instituto para el Estudio de los Ecosistemas Patagónicos; IPEEC-CONICET; Puerto Madryn Chubut Argentina
| | - Luciano Javier Avila
- Grupo de Herpetología Patagónica; Instituto para el Estudio de los Ecosistemas Patagónicos; IPEEC-CONICET; Puerto Madryn Chubut Argentina
| | - Jack Walter Sites
- Biology Department and Bean Life Science Museum; Brigham Young University; Provo UT USA
| | - Mariana Morando
- Grupo de Herpetología Patagónica; Instituto para el Estudio de los Ecosistemas Patagónicos; IPEEC-CONICET; Puerto Madryn Chubut Argentina
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Rueda EC, Mullaney KA, Conte-Grand C, Habit EM, Cussac V, Ortí G. Displacement of native Patagonian freshwater silverside populations (Odontesthes hatcheri, Atherinopsidae) by introgressive hybridization with introduced O. bonariensis. Biol Invasions 2016. [DOI: 10.1007/s10530-016-1295-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Medina CD, Avila LJ, Sites JW, Morando M. Multilocus phylogeography of the Patagonian lizard complexLiolaemus kriegi(Iguania: Liolaemini). Biol J Linn Soc Lond 2014. [DOI: 10.1111/bij.12285] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cintia D. Medina
- Grupo de Herpetología Patagónica; CENPAT-CONICET; Boul. Almt. G. Brown U2915ACD Puerto Madryn Chubut Argentina
| | - Luciano J. Avila
- Grupo de Herpetología Patagónica; CENPAT-CONICET; Boul. Almt. G. Brown U2915ACD Puerto Madryn Chubut Argentina
| | - Jack W. Sites
- Biology Department; and Bean Life Science Museum; Brigham Young University; 695 WIDB Provo UT 84602 USA
| | - Mariana Morando
- Grupo de Herpetología Patagónica; CENPAT-CONICET; Boul. Almt. G. Brown U2915ACD Puerto Madryn Chubut Argentina
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Chakona A, Swartz ER, Gouws G. Evolutionary drivers of diversification and distribution of a southern temperate stream fish assemblage: testing the role of historical isolation and spatial range expansion. PLoS One 2013; 8:e70953. [PMID: 23951050 PMCID: PMC3739774 DOI: 10.1371/journal.pone.0070953] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 06/28/2013] [Indexed: 11/18/2022] Open
Abstract
This study used phylogenetic analyses of mitochondrial cytochrome b sequences to investigate genetic diversity within three broadly co-distributed freshwater fish genera (Galaxias, Pseudobarbus and Sandelia) to shed some light on the processes that promoted lineage diversification and shaped geographical distribution patterns. A total of 205 sequences of Galaxias, 177 sequences of Pseudobarbus and 98 sequences of Sandelia from 146 localities across nine river systems in the south-western Cape Floristic Region (South Africa) were used. The data were analysed using phylogenetic and haplotype network methods and divergence times for the clades retrieved were estimated using *BEAST. Nine extremely divergent (3.5-25.3%) lineages were found within Galaxias. Similarly, deep phylogeographic divergence was evident within Pseudobarbus, with four markedly distinct (3.8-10.0%) phylogroups identified. Sandelia had two deeply divergent (5.5-5.9%) lineages, but seven minor lineages with strong geographical congruence were also identified. The Miocene-Pliocene major sea-level transgression and the resultant isolation of populations in upland refugia appear to have driven widespread allopatric divergence within the three genera. Subsequent coalescence of rivers during the Pleistocene major sea-level regression as well as intermittent drainage connections during wet periods are proposed to have facilitated range expansion of lineages that currently occur across isolated river systems. The high degree of genetic differentiation recovered from the present and previous studies suggest that freshwater fish diversity within the south-western CFR may be vastly underestimated, and taxonomic revisions are required.
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Affiliation(s)
- Albert Chakona
- South African Institute for Aquatic Biodiversity, Grahamstown, South Africa.
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Morando M, Avila LJ, Perez CH, Hawkins MA, Sites JW. A molecular phylogeny of the lizard genus Phymaturus (Squamata, Liolaemini): Implications for species diversity and historical biogeography of southern South America. Mol Phylogenet Evol 2013; 66:694-714. [DOI: 10.1016/j.ympev.2012.10.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 10/09/2012] [Accepted: 10/22/2012] [Indexed: 10/27/2022]
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Breitman MF, Avila LJ, Sites JW, Morando M. How lizards survived blizzards: phylogeography of theLiolaemus lineomaculatusgroup (Liolaemidae) reveals multiple breaks and refugia in southern Patagonia and their concordance with other codistributed taxa. Mol Ecol 2012; 21:6068-85. [DOI: 10.1111/mec.12075] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2012] [Revised: 08/29/2012] [Accepted: 09/01/2012] [Indexed: 11/28/2022]
Affiliation(s)
- M. Florencia Breitman
- Grupo de Herpetología Patagónico; Centro Nacional Patagónico; Boulevard Almirante Brown 2915, (U9120ACD); Puerto Madryn; Chubut; Argentina
| | - Luciano J. Avila
- Grupo de Herpetología Patagónico; Centro Nacional Patagónico; Boulevard Almirante Brown 2915, (U9120ACD); Puerto Madryn; Chubut; Argentina
| | - Jack W. Sites
- Biology Department and Monte L. Bean Life Science Museum; Brigham Young University; 401 WIDB; Provo; UT; 84602; USA
| | - Mariana Morando
- Grupo de Herpetología Patagónico; Centro Nacional Patagónico; Boulevard Almirante Brown 2915, (U9120ACD); Puerto Madryn; Chubut; Argentina
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17
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Fritz U, Alcalde L, Vargas-Ramírez M, Goode EV, Fabius-Turoblin DU, Praschag P. Northern genetic richness and southern purity, but just one species in the Chelonoidis chilensis complex. ZOOL SCR 2012. [DOI: 10.1111/j.1463-6409.2012.00533.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Unmack PJ, Barriga JP, Battini MA, Habit EM, Johnson JB. Phylogeography of the catfish Hatcheria macraei reveals a negligible role of drainage divides in structuring populations. Mol Ecol 2011; 21:942-59. [PMID: 22211356 DOI: 10.1111/j.1365-294x.2011.05408.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Southern South America provides a set of unusual geographic features that make it particularly interesting for studying phylogeography. The Andes Mountains run along a north-to-south axis and act as a barrier to gene flow for much of the biota of this region, with southern portions experiencing extensive historical glaciation. Geological data reveal a series of drainage reversals, shifting from Pacific Ocean outlets to Atlantic Ocean outlets because of glacier formation that dammed and reversed rivers. Once glaciers melted around 13 000 years ago, drainages returned to the Pacific Ocean. This geologic history predicts that aquatic organisms in Pacific rivers should have their closest relationships to their counterparts in Atlantic rivers immediately to their east. We tested this prediction in the trichomycterid catfish Hatcheria macraei from 38 locations using the mitochondrial cytochrome b gene. Our results show that most populations found in Pacific rivers were closely related to fish found in the adjacent Atlantic draining Río Chubut. Surprisingly, one documented drainage reversal (from Río Deseado into Río Baker) did not result in movement of H. macraei. Overall, we found the lowest levels of genetic structure between most Pacific rivers that are adjacent to the Atlantic draining Río Chubut. We also found low levels of population structuring among three of four contemporary river basins that drain to the Atlantic Ocean. Our findings suggest that drainage basin boundaries have historically not played an important long-term role in structuring between nine of 11 drainages, an unusual finding in freshwater biogeography.
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Affiliation(s)
- Peter J Unmack
- Evolutionary Ecology Laboratories, Department of Biology, Brigham Young University, Provo, UT 84602, USA.
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19
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Zemlak TS, Walde SJ, Habit EM, Ruzzante DE. Climate-induced changes to the ancestral population size of two Patagonian galaxiids: the influence of glacial cycling. Mol Ecol 2011; 20:5280-94. [PMID: 22077139 DOI: 10.1111/j.1365-294x.2011.05352.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Patagonia is one of the few areas in the Southern Hemisphere to have been directly influenced by Quaternary glaciers. In this study, we evaluate the influence that Quaternary glacial ice had on the genetic diversity of two congeneric fish species, the diadromous Galaxias maculatus and the nondiadromous Galaxias platei, using multilocus estimates of effective population size through time. Mid-Quaternary glaciations had far-reaching consequences for both species. Galaxias maculatus and G. platei each experienced severe genetic bottlenecks during the period when Patagonia ice sheet advance reached its maximum positions c. 1.1-0.6 Ma. Concordant drops in effective size during this time suggest that range sizes were under similar constraints. It is therefore unlikely that coastal (brackish/marine) environments served as a significant refuge for G. maculatus during glacial periods. An earlier onset of population declines for G. platei suggests that this species was vulnerable to modest glacial advances. Declines in effective sizes were continuous for both species and lasted into the late-Pleistocene. However, G. maculatus exhibited a strong population recovery during the late-Quaternary (c. 400,000 bp). Unusually long and warm interglacials associated with the late-Quaternary may have helped to facilitate a strong population rebound in this primarily coastal species.
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Affiliation(s)
- Tyler S Zemlak
- Department of Biology, Dalhousie University, Halifax, NS, Canada.
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RUZZANTE DANIELE, RABASSA JORGE. Palaeogeography and palaeoclimatology of Patagonia: effects on biodiversity. Biol J Linn Soc Lond 2011. [DOI: 10.1111/j.1095-8312.2011.01693.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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SÉRSIC ALICIAN, COSACOV ANDREA, COCUCCI ANDREAA, JOHNSON LEIGHA, POZNER RAÚL, AVILA LUCIANOJ, SITES Jr. JACKW, MORANDO MARIANA. Emerging phylogeographical patterns of plants and terrestrial vertebrates from Patagonia. Biol J Linn Soc Lond 2011. [DOI: 10.1111/j.1095-8312.2011.01656.x] [Citation(s) in RCA: 172] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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22
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PARDIÑAS ULYSESFJ, TETA PABLO, D'ELÍA GUILLERMO, LESSA ENRIQUEP. The evolutionary history of sigmodontine rodents in Patagonia and Tierra del Fuego. Biol J Linn Soc Lond 2011. [DOI: 10.1111/j.1095-8312.2011.01679.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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RUZZANTE DANIELE, WALDE SANDRAJ, MACCHI PATRICIOJ, ALONSO MARCELO, BARRIGA JUANP. Phylogeography and phenotypic diversification in the Patagonian fish Percichthys trucha: the roles of Quaternary glacial cycles and natural selection. Biol J Linn Soc Lond 2011. [DOI: 10.1111/j.1095-8312.2011.01682.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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