1
|
Santos MH, Barrios-Leal DY, Manfrin MH. Phylogeography of Drosophila buzzatii (Diptera, Drosophilidae): responses of the species to Quaternary climates in tropical and subtropical South America. AN ACAD BRAS CIENC 2023; 95:e20220846. [PMID: 37909608 DOI: 10.1590/0001-3765202320220846] [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: 12/07/2022] [Accepted: 03/21/2023] [Indexed: 11/03/2023] Open
Abstract
Drosophila buzzatii (Diptera: Drosophilidae) is a fly that breeds exclusively on decaying tissues of cacti species widely distributed in tropical and subtropical areas of South America. This distribution includes biomes in distinct climatic regimes (e.g., seasonal rain forest, semi-arid scrubs, savannas, and grasslands), which at first glance could might give the false impression that the species is not sensitive to either climate or vegetation physiognomies. However, detection of historical demographic events within D. buzzatii reveal the interplay between climate and the population structure of the species as the Late Quaternary climate changes occurred. To understand this process, we performed a phylogeographic analysis based on sequences of the mitochondrial gene COI for 128 individuals from 43 localities. Our analyses combined coalescent methods, population genetics, and paleodistributions estimation methods. Our study reveals that the COI haplotype diversity is geographically structured, with a decreasing cline from north to south. The results suggest an ancient range expansion, dated from 610k to 550k years before present, in the northernmost region of the species distribution, the Caatinga vegetation. More recently, an intense gene flow and a population expansion were detected in the central and south portions of its distribution. The demographic events detected date back to the glacial periods of the Quaternary.
Collapse
Affiliation(s)
- Mateus Henrique Santos
- Pós-Graduação em Biologia Evolutiva. Universidade Estadual de Ponta Grossa, Departamento de Biologia Estrutural, Molecular e Genética, Av. General Carlos Cavalcanti, 4748, Uvaranas, 84030-900 Ponta Grossa, PR, Brazil
| | - Dora Yovana Barrios-Leal
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Genética, Rua Monte Alegre, Av. Bandeirantes, 3900, Subsetor Oeste - 11 (N-11), 14040-900 Ribeirão Preto, SP, Brazil
| | - Maura Helena Manfrin
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Genética, Rua Monte Alegre, Av. Bandeirantes, 3900, Subsetor Oeste - 11 (N-11), 14040-900 Ribeirão Preto, SP, Brazil
- Universidade de São Paulo, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Departamento de Biologia, Av. Bandeirantes, 3900, Subsetor Oeste - 11 (N-11), 14040-900 Ribeirão Preto, SP, Brazil
| |
Collapse
|
2
|
Calaça P, de Freitas LD, Schlindwein C. Strongly unbalanced gender attractiveness in a dioecious mass flowering tropical tree pollinated by stingless bees. PLANT BIOLOGY (STUTTGART, GERMANY) 2022; 24:473-481. [PMID: 35174601 DOI: 10.1111/plb.13398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
In dioecious, bee-pollinated tree species, male and female flowers offer different resources. It is unclear how this unbalanced quantity and quality of floral resources affects flower visits and pollen transfer to female flowers. We asked, what characteristics of flowering and dynamics of resource production by trees favour flights of bees between male and female trees. We quantified the floral resources produced by individual flowers and entire trees of Myracrodruon urundeuva (Anacardiaceae), measured pollen flow to female flowers, fruit set of naturally pollinated flowers and determined the effective pollinators. Crown volume of male trees was four-fold, flower number 15-fold and nectar volume 60 times higher than in female trees. While ~70% of male flowers opened in the morning, ~70% of female flowers opened in the afternoon. Fruit set was 27%. Stingless bee species were the main pollinators, while honeybees were common only on male flowers. Strongly unbalanced production of floral resources, high potential lifespan of female flowers and anticipated opening of male flowers favour pollinator movement and pollen deposition on female flowers, albeit low (0.003% of pollen that reached stigmas), but sufficient to produce thousands of fruits per tree. Besides being an astonishing pollen and nectar source for numerous social bee species, only a few of them were effective pollinators. Our quantitative approach to floral resource production of each gender provides new insights, such as the proportion of resources allocated to each gender and the corresponding behaviour of flower visitors, for understanding the reproductive strategy of dioecious tropical mass-flowering trees.
Collapse
Affiliation(s)
- P Calaça
- Diretoria de Pesquisa e Desenvolvimento, Fundação Ezequiel Dias, Rua Conde Pereira Carneiro, Gameleira, Brazil
- Departamento de Botânica, Grupo Plebeia - Ecologia de Abelhas e da Polinização, Universidade Federal de Minas Gerais, Pampulha, Brazil
| | - L D de Freitas
- Departamento de Botânica, Grupo Plebeia - Ecologia de Abelhas e da Polinização, Universidade Federal de Minas Gerais, Pampulha, Brazil
| | - C Schlindwein
- Departamento de Botânica, Grupo Plebeia - Ecologia de Abelhas e da Polinização, Universidade Federal de Minas Gerais, Pampulha, Brazil
| |
Collapse
|
3
|
Hernández C, Alvarado M, Salgado-Roa FC, Ballesteros N, Rueda-M N, Oliveira J, Alevi KCC, da Rosa JA, Urbano P, Salazar C, Ramírez JD. Phylogenetic relationships and evolutionary patterns of the genus Psammolestes Bergroth, 1911 (Hemiptera: Reduviidae: Triatominae). BMC Ecol Evol 2022; 22:30. [PMID: 35279099 PMCID: PMC8918316 DOI: 10.1186/s12862-022-01987-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 03/04/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The evolutionary history of biodiversity in South America has been poorly studied in the seasonal dry tropical forest (SDTF). Species diversification in this ecosystem may have a twofold explanation. First, intermittent connections in the middle and late Pleistocene promoted species dispersal and/or genetic connectivity between lineages isolated in disjunct patches of forest. Second, allopatric speciation proceeded immediately after the formation and colonization of the SDTF in the Neogene. Here we studied the diversification of Psammolestes, a genus endemic of the SDTF and naturally infected with Trypanosoma cruzi (agent of Chagas disease), using a combination of phylogenetic, population genetics and niche model methods, and evaluated the reliability of the three morphospecies currently recognized. RESULTS Our multilocus analyses recovered P. coreodes and P. tertius in a monophyletic clade sister to P. arthuri. Species delimitation tests recovered these lineages as different species despite the shared genetic variation observed between P. coreodes and P. tertius in five genes. Also, genetic variation of the genus clustered in three groups that were consistent with the three morphospecies. Our demographic model predicted a scenario of divergence in absence of gene flow, suggesting that mixed haplotypes may be the result of shared ancestral variation since the divergence of the subtropical-temperate species P. coreodes and P. tertius. In contrast, the tropical species P. arthuri was highly differentiated from the other two in all tests of genetic structure, and consistently, the Monmonier's algorithm identified a clear geographical barrier that separates this species from P. coreodes and P. tertius. CONCLUSIONS We found three genetically structured lineages within Psammolestes that diverged in absence of gene flow in the late Miocene. This result supports a scenario of species formation driven by geographical isolation rather than by divergence in the face of gene flow associated with climatic oscillations in the Pleistocene. Also, we identified the Amazon basin as a climatic barrier that separates tropical from subtropical-temperate species, thus promoting allopatric speciation after long range dispersion. Finally, each species of Psammolestes occupies different climatic niches suggesting that niche conservatism is not crucial for species differentiation. These findings influence the current vector surveillance programs of Chagas disease in the region.
Collapse
Affiliation(s)
- Carolina Hernández
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMIBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Mateo Alvarado
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMIBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Fabian C Salgado-Roa
- Grupo de Genética Evolutiva y Filogeografía, Departamento de Biología, Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia.,School of BioSciences, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Nathalia Ballesteros
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMIBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Nicol Rueda-M
- Grupo de Genética Evolutiva y Filogeografía, Departamento de Biología, Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Jader Oliveira
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara, Sao Paulo, 01000, Brazil.,Universidade de São Paulo (USP), Faculdade de Saúde Pública, São Paulo, SP, Brazil
| | - Kaio Cesar Chaboli Alevi
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara, Sao Paulo, 01000, Brazil
| | - Joao Aristeu da Rosa
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara, Sao Paulo, 01000, Brazil
| | - Plutarco Urbano
- Grupo de Investigaciones Biológicas de la Orinoquia, Universidad Internacional del Trópico Americano (Unitrópico), Yopal, Colombia
| | - Camilo Salazar
- Grupo de Genética Evolutiva y Filogeografía, Departamento de Biología, Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia.
| | - Juan David Ramírez
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMIBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia.
| |
Collapse
|
4
|
López-Barrera G, Ochoa-Zavala M, Quesada M, Harvey N, Núñez-Farfán J, González-Rodríguez A, Rocha-Ramírez V, Oyama K. Genetic imprints of Brosimum alicastrum Sw. in Mexico. AMERICAN JOURNAL OF BOTANY 2021; 108:1793-1807. [PMID: 34519027 DOI: 10.1002/ajb2.1725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 04/10/2021] [Accepted: 04/14/2021] [Indexed: 06/13/2023]
Abstract
PREMISE The mechanisms generating the geographical distributions of genetic diversity are a central theme in evolutionary biology. The amount of genetic diversity and its distribution are controlled by several factors, including dispersal abilities, physical barriers, and environmental and climatic changes. We investigated the patterns of genetic diversity and differentiation among populations of the widespread species Brosimum alicastrum in Mexico. METHODS Using nuclear DNA microsatellite data, we tested whether the genetic structure of B. alicastrum was associated with the roles of the Trans-Mexican Volcanic Belt and the Isthmus of Tehuantepec as geographical barriers to gene flow and to infer the role of past events in the genetic diversity patterns. We further used a maximum-likelihood population-effects mixed model (MLPE) to identify the main factor affecting population differentiation in B. alicastrum. RESULTS Our results suggested that Mexican B. alicastrum is well differentiated into three main lineages. Patterns of the genetic structure at a finer scale did not fully correspond to the current geographical barriers to gene flow. According to the MLPE mixed model, isolation by distance is the best model for explaining the genetic differentiation of B. alicastrum in Mexico. CONCLUSIONS We propose that the differentiation patterns might reflect (1) an ancient differentiation that occurred in Central and South America, (2) the effects of past climatic changes, and (3) the functions of some physical barriers to gene flow. This study provides insights into the possible mechanisms underlying the geographic genetic variation of B. alicastrum along a moisture gradient in tropical lowland forests.
Collapse
Affiliation(s)
- Gabriela López-Barrera
- Escuela Nacional de Estudios Superiores (ENES) Unidad Morelia, Universidad Nacional Autónoma de México (UNAM), Antigua Carretera a Pátzcuaro no. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia, Michoacán 58190, México
| | - Maried Ochoa-Zavala
- Escuela Nacional de Estudios Superiores (ENES) Unidad Morelia, Universidad Nacional Autónoma de México (UNAM), Antigua Carretera a Pátzcuaro no. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia, Michoacán 58190, México
| | - Mauricio Quesada
- Escuela Nacional de Estudios Superiores (ENES) Unidad Morelia, Universidad Nacional Autónoma de México (UNAM), Antigua Carretera a Pátzcuaro no. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia, Michoacán 58190, México
- Laboratorio Nacional de Análisis y Síntesis Ecológica (LANASE), UNAM, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia, Michoacán 58190, México
| | - Nick Harvey
- Genetic Marker Services, 7 Windlesham Road, Brighton BN1 3AG, England
| | - Juan Núñez-Farfán
- Laboratorio de Genética Ecológica y Evolución, Instituto de Ecología, UNAM, Av. Universidad 3000, Coyoacán, Cd. de México 04510, Mexico
| | - Antonio González-Rodríguez
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, UNAM, Antigua Carretera a Pátzcuaro no. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia, Michoacán 58190, México
| | - Víctor Rocha-Ramírez
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, UNAM, Antigua Carretera a Pátzcuaro no. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia, Michoacán 58190, México
| | - Ken Oyama
- Escuela Nacional de Estudios Superiores (ENES) Unidad Morelia, Universidad Nacional Autónoma de México (UNAM), Antigua Carretera a Pátzcuaro no. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia, Michoacán 58190, México
- Laboratorio Nacional de Análisis y Síntesis Ecológica (LANASE), UNAM, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia, Michoacán 58190, México
| |
Collapse
|
5
|
Meerow AW, Gardner EM, Nakamura K. Phylogenomics of the Andean Tetraploid Clade of the American Amaryllidaceae (Subfamily Amaryllidoideae): Unlocking a Polyploid Generic Radiation Abetted by Continental Geodynamics. FRONTIERS IN PLANT SCIENCE 2020; 11:582422. [PMID: 33250911 PMCID: PMC7674842 DOI: 10.3389/fpls.2020.582422] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 10/12/2020] [Indexed: 05/27/2023]
Abstract
One of the two major clades of the endemic American Amaryllidaceae subfam. Amaryllidoideae constitutes the tetraploid-derived (n = 23) Andean-centered tribes, most of which have 46 chromosomes. Despite progress in resolving phylogenetic relationships of the group with plastid and nrDNA, certain subclades were poorly resolved or weakly supported in those previous studies. Sequence capture using anchored hybrid enrichment was employed across 95 species of the clade along with five outgroups and generated sequences of 524 nuclear genes and a partial plastome. Maximum likelihood phylogenetic analyses were conducted on concatenated supermatrices, and coalescent-based species tree analyses were run on the gene trees, followed by hybridization network, age diversification and biogeographic analyses. The four tribes Clinantheae, Eucharideae, Eustephieae, and Hymenocallideae (sister to Clinantheae) are resolved in all analyses with > 90 and mostly 100% support, as are almost all genera within them. Nuclear gene supermatrix and species tree results were largely in concordance; however, some instances of cytonuclear discordance were evident. Hybridization network analysis identified significant reticulation in Clinanthus, Hymenocallis, Stenomesson and the subclade of Eucharideae comprising Eucharis, Caliphruria, and Urceolina. Our data support a previous treatment of the latter as a single genus, Urceolina, with the addition of Eucrosia dodsonii. Biogeographic analysis and penalized likelihood age estimation suggests an origin in the Cauca, Desert and Puna Neotropical bioprovinces for the complex in the mid-Oligocene, with more dispersals than vicariances in its history, but no extinctions. Hymenocallis represents the only instance of long-distance vicariance from the tropical Andean origin of its tribe Hymenocallideae. The absence of extinctions correlates with the lack of diversification rate shifts within the clade. The Eucharideae experienced a sudden lineage radiation ca. 10 Mya. We tie much of the divergences in the Andean-centered lineages to the rise of the Andes, and suggest that the Amotape-Huancabamba Zone functioned as both a corridor (dispersal) and a barrier to migration (vicariance). Several taxonomic changes are made. This is the largest DNA sequence data set to be applied within Amaryllidaceae to date.
Collapse
Affiliation(s)
- Alan W. Meerow
- USDA-ARS-SHRS, National Clonal Germplasm Repository, Miami, FL, United States
| | - Elliot M. Gardner
- Singapore Botanic Gardens, National Parks Board, Singapore, Singapore
- Institute of Environment, Florida International University, Miami, FL, United States
| | - Kyoko Nakamura
- USDA-ARS-SHRS, National Clonal Germplasm Repository, Miami, FL, United States
| |
Collapse
|
6
|
Corbett EC, Bravo GA, Schunck F, Naka LN, Silveira LF, Edwards SV. Evidence for the Pleistocene Arc Hypothesis from genome-wide SNPs in a Neotropical dry forest specialist, the Rufous-fronted Thornbird (Furnariidae: Phacellodomus rufifrons). Mol Ecol 2020; 29:4457-4472. [PMID: 32974981 DOI: 10.1111/mec.15640] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 08/15/2020] [Accepted: 08/27/2020] [Indexed: 11/29/2022]
Abstract
South American dry forests have a complex and poorly understood biogeographic history. Based on the fragmented distribution of many Neotropical dry forest species, it has been suggested that this biome was more widely distributed and contiguous under drier climate conditions in the Pleistocene. To test this scenario, known as the Pleistocene Arc Hypothesis, we studied the phylogeography of the Rufous-fronted Thornbird (Phacellodomus rufifrons), a widespread dry forest bird with a disjunct distribution closely matching that of the biome itself. We sequenced mtDNA and used ddRADseq to sample 7,167 genome-wide single-nucleotide polymorphisms from 74 P. rufifrons individuals across its range. We found low genetic differentiation over two prominent geographic breaks - particularly across a 1,000 km gap between populations in Bolivia and Northern Peru. Using demographic analyses of the joint site frequency spectrum, we found evidence of recent divergence without subsequent gene flow across those breaks. By contrast, parapatric morphologically distinct populations in northeastern Brazil show high genetic divergence with evidence of recent gene flow. These results, in combination with our paleoclimate species distribution modelling, support the idea that currently disjunct patches of dry forest were more connected in the recent past, probably during the Middle and Late Pleistocene. This notion fits the major predictions of the Pleistocene Arc Hypothesis and illustrates the importance of comprehensive genomic and geographic sampling for examining biogeographic and evolutionary questions in complex ecosystems like Neotropical dry forests.
Collapse
Affiliation(s)
- Eamon C Corbett
- Department of Organismic and Evolutionary Biology & Museum of Comparative Zoology, Harvard University, Cambridge, MA, USA.,Department of Biological Sciences & Museum of Natural Science, Louisiana State University, Baton Rouge, LA, USA
| | - Gustavo A Bravo
- Department of Organismic and Evolutionary Biology & Museum of Comparative Zoology, Harvard University, Cambridge, MA, USA
| | - Fabio Schunck
- Seção de Aves, Museu de Zoologia da Universidade de São Paulo, São Paulo, Brazil
| | - Luciano N Naka
- Department of Organismic and Evolutionary Biology & Museum of Comparative Zoology, Harvard University, Cambridge, MA, USA.,Departamento de Zoologia, Universidade Federal de Pernambuco, Recife, Brazil
| | - Luís F Silveira
- Seção de Aves, Museu de Zoologia da Universidade de São Paulo, São Paulo, Brazil
| | - Scott V Edwards
- Department of Organismic and Evolutionary Biology & Museum of Comparative Zoology, Harvard University, Cambridge, MA, USA
| |
Collapse
|
7
|
Rambal S, Cavender-Bares J, Sparks KL, Sparks JP. Consequences of drought severity for tropical live oak (Quercus oleoides) in Mesoamerica. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2020; 30:e02135. [PMID: 32304117 DOI: 10.1002/eap.2135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 02/25/2020] [Indexed: 06/11/2023]
Abstract
In two Costa Rican and three Honduran sites that vary in rainfall and soil properties, we used natural isotopes, a soil water balance model, and broad-scale climate-based drought indices to study shifts in water use with ontogeny from seedlings to mature tropical live oak (Quercus oleoides) trees. Water use patterns help to explain persistence of this broadly distributed species in Mesoamerica and to evaluate likely threats of ongoing climate changes. At the end of the dry season, soil δ18 O profiles can be described by one-phase exponential decay curves. Minimum values reflect geographic origins of the last significant rain event, and curvature is inversely related to canopy closure, demonstrating its role in controlling topsoil evaporation. Partitioning of soil water sources for transpiration was analyzed with a mixing model. In the Costa Rican sites, in a relatively dry year, saplings and mature trees took up water from the upper soil. In a relatively wet year in the Honduran sites, we observed deeper water extraction. In all sites, soil storage dampens extreme variation in water availability. The size dependence of water uptake with larger stems exploiting deeper layers is translated into variation in bulk leaf δ13 C-based water use efficiency (WUE) with the exception of mature trees. From 1932 to 2015, drought severity was evaluated with the Standardized Precipitation Evapotranspiration Index (SPEI) concurrently with simulations of the soil water balance model. Drought occurrence increased, regardless of the time period, averaged across 6, 12, or 24 months. All ontogenetic stages in all populations experienced frequent water limitation. We found evidence for linear trends toward aridification with increases of return periods of drought for October SPEI-24 declining from 42 to 6 yr in Costa Rica and from 21 to 7 yr in Honduras and recent occurrence of multiyear droughts from 2013 to 2016. October SPEI-12 and SPEI-24 were significantly related to the Oceanic Niño Indices demonstrating that local inter-annual variations in drought severity in Mesoamerica are modulated by large-scale climate forces. Drought severity in the near-term future depends on the extent to which the Pacific will adopt a more La Niña-like vs. a more El Niño-like state under ongoing climatic changes.
Collapse
Affiliation(s)
- Serge Rambal
- Centre d'Ecologie Fonctionnelle et Evolutive CEFE, UMR5175, CNRS, EPHE, Université de Montpellier, Université Paul-Valéry Montpellier, 1919 Route de Mende, Montpellier Cedex 5, 34293, France
- Departamento de Biologia, Universidade Federal de Lavras, CP 3037, Lavras, Minas Gerais, CEP 37200-000, Brazil
| | - Jeannine Cavender-Bares
- Department of Ecology, Evolution and Behavior, University of Minnesota, Saint Paul, Minnesota, 55108, USA
| | - Kimberlee L Sparks
- Department of Ecology and Evolution, Cornell University, Ithaca, New York, 14853, USA
| | - Jed P Sparks
- Department of Ecology and Evolution, Cornell University, Ithaca, New York, 14853, USA
| |
Collapse
|
8
|
Elias SG, Salvador-Montoya CA, Costa-Rezende DH, Guterres DC, Fernandes M, Olkoski D, Klabunde GHF, Drechsler-Santos ER. Studies on the biogeography of Phellinotus piptadeniae (Hymenochaetales, Basidiomycota): Expanding the knowledge on its distribution and clarifying hosts relationships. FUNGAL ECOL 2020. [DOI: 10.1016/j.funeco.2020.100912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
9
|
Aguirre‐Morales CA, Thomas E, Cardozo CI, Gutiérrez J, Alcázar Caicedo C, Moscoso Higuita LG, Becerra López‐Lavalle LA, González MA. Genetic diversity of the rain tree ( Albizia saman) in Colombian seasonally dry tropical forest for informing conservation and restoration interventions. Ecol Evol 2020; 10:1905-1916. [PMID: 32128124 PMCID: PMC7042685 DOI: 10.1002/ece3.6005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 12/11/2019] [Accepted: 12/13/2019] [Indexed: 11/11/2022] Open
Abstract
Albizia saman is a multipurpose tree species of seasonally dry tropical forests (SDTFs) of Mesoamerica and northern South America typically cultivated in silvopastoral and other agroforestry systems around the world, a trend that is bound to increase in light of multimillion hectare commitments for forest and landscape restoration. The effective conservation and sustainable use of A. saman requires detailed knowledge of its genetic diversity across its native distribution range of which surprisingly little is known to date. We assessed the genetic diversity and structure of A.saman across twelve representative locations of SDTF in Colombia, and how they may have been shaped by past climatic changes and human influence. We found four different genetic groups which may be the result of differentiation due to isolation of populations in preglacial times. The current distribution and mixture of genetic groups across STDF fragments we observed might be the result of range expansion of SDTFs during the last glacial period followed by range contraction during the Holocene and human-influenced movement of germplasm associated with cattle ranching. Despite the fragmented state of the presumed natural A. saman stands we sampled, we did not find any signs of inbreeding, suggesting that gene flow is not jeopardized in humanized landscapes. However, further research is needed to assess potential deleterious effects of fragmentation on progeny. Climate change is not expected to seriously threaten the in situ persistence of A. saman populations and might present opportunities for future range expansion. However, the sourcing of germplasm for tree planting activities needs to be aligned with the genetic affinity of reference populations across the distribution of Colombian SDTFs. We identify priority source populations for in situ conservation based on their high genetic diversity, lack or limited signs of admixture, and/or genetic uniqueness.
Collapse
|
10
|
López-Caamal A, Ferrufino-Acosta LF, Díaz-Maradiaga RF, Rodríguez-Delcid D, Mussali-Galante P, Tovar-Sánchez E. Species distribution modelling and cpSSR reveal population history of the Neotropical annual herb Tithonia rotundifolia (Asteraceae). PLANT BIOLOGY (STUTTGART, GERMANY) 2019; 21:248-258. [PMID: 30326544 DOI: 10.1111/plb.12925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 10/11/2018] [Indexed: 05/29/2023]
Abstract
The impacts of the historical geologic and climatic events on the diversity and genetic structure of Neotropical taxa have recently become a subject of study. However, annual plants associated with tropical dry forests remain under-studied. The exploration of additional taxa in contrasting environments will improve the current understanding of responses of the Neotropical biota to these events. Here, we explore the species distribution and geographic structure of the annual herb Tithonia rotundifolia. We sampled 175 individuals from 19 populations of T. rotundifolia. Species distribution modelling and six microsatellite chloroplast loci were used to infer its population history. We identified areas of historical climate suitability and then tested if there is genetic structuring among these areas. Haplotypes showed strong phylogeographic structure. Historical climatic suitability areas were found along the Pacific coast; however, a gap was found at the Isthmus of Tehuantepec (IT). Although Bayesian analysis showed population structuring, amova revealed that the IT is not its main driver. Instead, a subdivision into a higher number of regions had higher FCT values. Also, populations to the east of the IT showed evidence of recent population expansion and migration in a south-north direction. Pleistocene climate fluctuations partially explain the geographic structure of T. rotundifolia. However, life-history characteristics such as limited seed dispersal and the patchy distribution of suitable habitats explain the high haplotype diversity and population sub-structuring and diversity. Lastly, the absence of geographic structure of some haplotypes may indicate long-distance dispersal, or hybridisation with the closely related T. tubaeformis.
Collapse
Affiliation(s)
- A López-Caamal
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Ciudad de México, México
- Laboratorio de Marcadores Moleculares, Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
| | - L F Ferrufino-Acosta
- Herbario Cyril Hardy Nelson Sutherland (TEFH), Facultad de Ciencias, Escuela de Biología, Universidad Nacional Autónoma de Honduras, Tegucigalpa, Honduras
| | - R F Díaz-Maradiaga
- Herbario Paul C. Standley (EAP), Departamento de Ambiente y Desarrollo, Escuela Agrícola Panamericana, Zamorano, Honduras
| | - D Rodríguez-Delcid
- Asociación Jardín Botánico La Laguna, Herbario LAGU, Antiguo Cuscatlán, La Libertad, El Salvador
| | - P Mussali-Galante
- Laboratorio de Investigaciones Ambientales, Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
| | - E Tovar-Sánchez
- Laboratorio de Marcadores Moleculares, Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
| |
Collapse
|
11
|
Camps GA, Martínez-Meyer E, Verga AR, Sérsic AN, Cosacov A. Genetic and climatic approaches reveal effects of Pleistocene refugia and climatic stability in an old giant of the Neotropical Dry Forest. Biol J Linn Soc Lond 2018. [DOI: 10.1093/biolinnean/bly115] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Gonzalo A Camps
- Instituto de Fisiología y Recursos Genéticos Vegetales (IFRGV), CIAP, INTA, Córdoba, Argentina
- Laboratorio de Ecología Evolutiva—Biología Floral, Instituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Enrique Martínez-Meyer
- Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de México, México
- Centro del Cambio Global y la Sustentabilidad en el Sureste, AC, Villahermosa, México
| | - Anibal R Verga
- Instituto de Fisiología y Recursos Genéticos Vegetales (IFRGV), CIAP, INTA, Córdoba, Argentina
| | - Alicia N Sérsic
- Laboratorio de Ecología Evolutiva—Biología Floral, Instituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Andrea Cosacov
- Laboratorio de Ecología Evolutiva—Biología Floral, Instituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina
| |
Collapse
|
12
|
Lanna FM, Werneck FP, Gehara M, Fonseca EM, Colli GR, Sites JW, Rodrigues MT, Garda AA. The evolutionary history of Lygodactylus lizards in the South American open diagonal. Mol Phylogenet Evol 2018; 127:638-645. [PMID: 29906606 DOI: 10.1016/j.ympev.2018.06.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 04/05/2018] [Accepted: 06/06/2018] [Indexed: 11/16/2022]
Abstract
The Pleistocenic Arc Hypothesis (PAH) posits that South American Seasonally Dry Tropical Forests (SDTF) were interconnected during Pleistocene glacial periods, enabling the expansion of species ranges that were subsequently fragmented in interglacial periods, promoting speciation. The lizard genus Lygodactylus occurs in Africa, Madagascar, and South America. Compared to the high diversity of African Lygodactylus, only two species are known to occur in South America, L. klugei and L. wetzeli, distributed in SDTFs and the Chaco, respectively. We use a phylogenetic approach based on mitochondrial (ND2) and nuclear (RAG-1) markers covering the known range of South American Lygodactylus to investigate (i) if they are monophyletic relative to their African congeners, (ii) if their divergence is congruent with the fragmentation of the PAH, and (iii) if cryptic diversity exists within currently recognized species. Maximum likelihood and Bayesian phylogenetic analyses recovered a well-supported monophyletic South American Lygodactylus, presumably resulting from a single trans-Atlantic dispersal event 29 Mya. Species delimitation analyses supported the existence of five putative species, three of them undescribed. Divergence times among L. klugei and the three putative undescribed species, all endemic to the SDTFs, are not congruent with the fragmentation of the PAH. However, fragmentation of the once broader and continuous SDTFs likely influenced the divergence of L. wetzeli in the Chaco and Lygodactylus sp. 3 (in a SDTF enclave in the Cerrado).
Collapse
Affiliation(s)
- Flávia M Lanna
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Norte, Campus Universitário, Lagoa Nova, 59078-900 Natal, RN, Brazil.
| | - Fernanda P Werneck
- Coordenação de Biodiversidade, Programa de Coleções Científicas Biológicas, Instituto Nacional de Pesquisas da Amazônia (INPA), 69067-375 Manaus, Amazonas, Brazil
| | - Marcelo Gehara
- American Museum of Natural History, Department of Herpetology, 79th St. Central Park West, New York, NY 10024, United States
| | - Emanuel M Fonseca
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Norte, Campus Universitário, Lagoa Nova, 59078-900 Natal, RN, Brazil
| | - Guarino R Colli
- Departamento de Zoologia, Universidade de Brasília, 70910-900 Brasília, DF, Brazil
| | - Jack W Sites
- Department of Biology and Bean Life Science Museum, Brigham Young University, Provo, UT 84602, United States
| | - Miguel T Rodrigues
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, 05508-090 São Paulo, SP, Brazil
| | - Adrian A Garda
- Departamento de Botânica e Zoologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Campus Universitário, Lagoa Nova, 59078-900 Natal, RN, Brazil
| |
Collapse
|
13
|
Scaldaferro MA, Barboza GE, Acosta MC. Evolutionary history of the chili pepper Capsicum baccatum L. (Solanaceae): domestication in South America and natural diversification in the Seasonally Dry Tropical Forests. Biol J Linn Soc Lond 2018. [DOI: 10.1093/biolinnean/bly062] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Marisel A Scaldaferro
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET-Universidad Nacional de Córdoba, Argentina
- Facultad de Ciencias Exactas, Físicas y Naturales (Universidad Nacional de Córdoba), Argentina
| | - Gloria E Barboza
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET-Universidad Nacional de Córdoba, Argentina
- Facultad de Ciencias Químicas (Universidad Nacional de Córdoba), Argentina
| | - M Cristina Acosta
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET-Universidad Nacional de Córdoba, Argentina
- Facultad de Ciencias Exactas, Físicas y Naturales (Universidad Nacional de Córdoba), Argentina
| |
Collapse
|
14
|
Silva AC, Souza AF. Aridity drives plant biogeographical sub regions in the Caatinga, the largest tropical dry forest and woodland block in South America. PLoS One 2018; 13:e0196130. [PMID: 29702668 PMCID: PMC5922524 DOI: 10.1371/journal.pone.0196130] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 04/07/2018] [Indexed: 11/18/2022] Open
Abstract
Our aims were to quantify and map the plant sub regions of the the Caatinga, that covers 844,453 km2 and is the largest block of seasonally dry forest in South America. We performed spatial analyses of the largest dataset of woody plant distributions in this region assembled to date (of 2,666 shrub and tree species; 260 localities), compared these distributions with the current phytogeographic regionalizations, and investigated the potential environmental drivers of the floristic patterns in these sub regions. Phytogeographical regions were identified using quantitative analyses of species turnover calculated as Simpson dissimilarity index. We applied an interpolation method to map NMDS axes of compositional variation over the entire extent of the Caatinga, and then classified the compositional dissimilarity according to the number of biogeographical sub regions identified a priori using k-means analysis. We used multinomial logistic regression models to investigate the influence of contemporary climatic productivity, topographic complexity, soil characteristics, climate stability since the last glacial maximum, and the human footprint in explaining the identified sub regions. We identified nine spatially cohesive biogeographical sub regions. Current productivity, as indicated by an aridity index, was the only explanatory variable retained in the best model, explaining nearly half of the floristic variability between sub regions. The highest rates of endemism within the Caatinga were in the Core and Periphery Chapada Diamantina sub regions. Our findings suggest that the topographic complexity, soil variation, and human footprint in the Caatinga act on woody plant distributions at local scales and not as determinants of broad floristic patterns. The lack of effect of climatic stability since the last glacial maximum probably results from the fact that a single measure of climatic stability does not adequately capture the highly dynamic climatic shifts the region suffered during the Pleistocene. There was limited overlap between our results and previous Caatinga classifications.
Collapse
Affiliation(s)
- Augusto C. Silva
- Programa de Pós-Graduação em Ecologia, CB, Universidade Federal do Rio Grande do Norte, Campus Universitário, Lagoa Nova, Natal, Rio Grande do Norte, Brazil
- * E-mail:
| | - Alexandre F. Souza
- Departamento de Ecologia, CB, Universidade Federal do Rio Grande do Norte, Campus Universitário, Lagoa Nova, Natal, Rio Grande do Norte, Brazil
| |
Collapse
|
15
|
Carvalho AL, Rivas LR, Céspedes R, Rodrigues MT. A New Collared Lizard (Tropidurus: Tropiduridae) Endemic to the Western Bolivian Andes and Its Implications for Seasonally Dry Tropical Forests. AMERICAN MUSEUM NOVITATES 2018. [DOI: 10.1206/3896.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- André L.G. Carvalho
- Division of Vertebrate Zoology (Herpetology), American Museum of Natural History
- Richard Gilder Graduate School, American Museum of Natural History
- Instituto de Biociências, Universidade de São Paulo, São Paulo, Brasil
| | - Luis Rolando Rivas
- Museo de Historia Natural Alcide d'Orbigny, Cochabamba, Bolivia
- Universidad Autónoma del Beni “Mcal. José Ballivián,” Trinidad, Beni, Bolivia
| | | | | |
Collapse
|
16
|
Vitorino LC, Lima-Ribeiro MS, Terribile LC, Collevatti RG. Demographical expansion of Handroanthus ochraceus in the Cerrado during the Quaternary: implications for the genetic diversity of Neotropical trees. Biol J Linn Soc Lond 2018. [DOI: 10.1093/biolinnean/blx163] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Luciana Cristina Vitorino
- Laboratório de Genética & Biodiversidade, Instituto de Ciências Biológicas (ICB), Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
| | - Matheus S Lima-Ribeiro
- Laboratório de Macroecologia, Instituto de Biociências, Universidade Federal de Goiás (UFG), Jataí, GO, Brazil
| | - Levi Carina Terribile
- Laboratório de Macroecologia, Instituto de Biociências, Universidade Federal de Goiás (UFG), Jataí, GO, Brazil
| | - Rosane G Collevatti
- Laboratório de Genética & Biodiversidade, Instituto de Ciências Biológicas (ICB), Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
| |
Collapse
|
17
|
Souza DCL, Rossini BC, de Souza FB, Sebbenn AM, Marino CL, de Moraes MLT. Development of microsatellite markers for Myracrodruon urundeuva (F.F. & M.F. Allemão), a highly endangered species from tropical forest based on next-generation sequencing. Mol Biol Rep 2017; 45:71-75. [PMID: 29288424 DOI: 10.1007/s11033-017-4142-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 12/19/2017] [Indexed: 10/18/2022]
Abstract
Myracrodruon urundeuva is a tree species of high economic importance due the strength and durability of its wood. Threatened of extinction in Brazil, it is present only in a few forest remnants, mostly in conservation units. Currently, there is little information on the genetic diversity of natural populations in Brazil and even less information about the genome of this species. Here, new species-specific microsatellite loci were developed based on next-generation sequencing (Illumina). More than 100,000 loci were identified in the run, with di- to hexanucleotides motifs. Of these, 20 loci were selected for validation in 30 individuals, with 15 successfully polymorphic loci detected. The number of alleles ranged among loci from 3 to 16, with an average of 7.73, expected (H e ) and observed (H o ) heterozygosity ranged from 0.246 to 0.902 and from 0.103 to 0.867, respectively. These results point out that these new set of markers has a great potential for use in population genetic studies for genetic conservation of the species.
Collapse
Affiliation(s)
| | - Bruno César Rossini
- Biotechnology Institute (IBTEC), UNESP - Univ Estadual Paulista, CEP 18607-440, Botucatu, SP, Brazil. .,Department of Genetics, UNESP - Univ Estadual Paulista, CEP 18618-689, Botucatu, SP, Brazil.
| | | | | | - Celso Luís Marino
- Biotechnology Institute (IBTEC), UNESP - Univ Estadual Paulista, CEP 18607-440, Botucatu, SP, Brazil.,Department of Genetics, UNESP - Univ Estadual Paulista, CEP 18618-689, Botucatu, SP, Brazil
| | - Mário Luiz Teixeira de Moraes
- Faculty of Agronomy, UNESP - Univ Estadual Paulista, C.P. 237, CEP 18610-307, Botucatu, SP, Brazil.,Faculty of Engineer, UNESP - Univ Estadual Paulista, CEP 15385-000, Ilha Solteira, SP, Brazil
| |
Collapse
|
18
|
Vergara J, Acosta LE, González-Ittig RE, Vaschetto LM, Gardenal CN. The disjunct pattern of the Neotropical harvestman Discocyrtus dilatatus (Gonyleptidae) explained by climate-driven range shifts in the Quaternary: Paleodistributional and molecular evidence. PLoS One 2017; 12:e0187983. [PMID: 29141036 PMCID: PMC5687770 DOI: 10.1371/journal.pone.0187983] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 10/30/2017] [Indexed: 12/13/2022] Open
Abstract
The disjunct distribution of the harvestman Discocyrtus dilatatus (Opiliones, Gonyleptidae) is used as a case study to test the hypothesis of a trans-Chaco Pleistocene paleobridge during range expansion stages. This would have temporarily connected humid regions (‘Mesopotamia’ in northeastern Argentina, and the ‘Yungas’ in the northwest, NWA) in the subtropical and temperate South American lowlands. The present study combines two independent approaches: paleodistributional reconstruction, using the Species Distribution Modeling method MaxEnt and projection onto Quaternary paleoclimates (6 kya, 21 kya, 130 kya), and phylogeographic analyses based on the cytochrome oxidase subunit I molecular marker. Models predict a maximal shrinkage during the warm Last Interglacial (130 kya), and the rise of the hypothesized paleobridge in the Last Glacial Maximum (21 kya), revealing that cold-dry stages (not warm-humid ones, as supposed) enabled the range expansion of this species. The disjunction was formed in the mid-Holocene (6 kya) and is intensified under current conditions. The median-joining network shows that NWA haplotypes are peripherally related to different Mesopotamian lineages; haplotypes from Santa Fe and Córdoba Provinces consistently occupy central positions in the network. According to the dated phylogeny, Mesopotamia-NWA expansion events would have occurred in the last glacial period, in many cases closely associated to the Last Glacial Maximum, with most divergence events occurring shortly thereafter. Only two (out of nine) NWA haplotypes are shared with Mesopotamian localities. A single, presumably relictual NWA haplotype was found to have diverged much earlier, suggesting an ancient expansion event not recoverable by the paleodistributional models. Different measures of sequence statistics, genetic diversity, population structure and history of demographic changes are provided. This research offers the first available evidence for the historical origin of NWA disjunct populations of a Mesopotamian harvestman.
Collapse
Affiliation(s)
- Julia Vergara
- Instituto de Diversidad y Ecología Animal (IDEA), CONICET-Universidad Nacional de Córdoba, Argentina
- Cátedra de Diversidad Animal I, Facultad de Ciencias Exactas, Físicas y Naturales, U. N. C., Córdoba, Argentina
- * E-mail: (LA); (JV)
| | - Luis E. Acosta
- Instituto de Diversidad y Ecología Animal (IDEA), CONICET-Universidad Nacional de Córdoba, Argentina
- Cátedra de Diversidad Animal I, Facultad de Ciencias Exactas, Físicas y Naturales, U. N. C., Córdoba, Argentina
- * E-mail: (LA); (JV)
| | - Raúl E. González-Ittig
- Instituto de Diversidad y Ecología Animal (IDEA), CONICET-Universidad Nacional de Córdoba, Argentina
- Cátedra de Genética de Poblaciones y Evolución, Facultad de Ciencias Exactas, Físicas y Naturales, U. N. C., Córdoba, Argentina
| | - Luis M. Vaschetto
- Instituto de Diversidad y Ecología Animal (IDEA), CONICET-Universidad Nacional de Córdoba, Argentina
- Cátedra de Diversidad Animal I, Facultad de Ciencias Exactas, Físicas y Naturales, U. N. C., Córdoba, Argentina
| | - Cristina N. Gardenal
- Instituto de Diversidad y Ecología Animal (IDEA), CONICET-Universidad Nacional de Córdoba, Argentina
- Cátedra de Genética de Poblaciones y Evolución, Facultad de Ciencias Exactas, Físicas y Naturales, U. N. C., Córdoba, Argentina
| |
Collapse
|
19
|
Gehara M, Garda AA, Werneck FP, Oliveira EF, Fonseca EM, Camurugi F, Magalhães FDM, Lanna FM, Sites JW, Marques R, Silveira‐Filho R, São Pedro VA, Colli GR, Costa GC, Burbrink FT. Estimating synchronous demographic changes across populations using
hABC
and its application for a herpetological community from northeastern Brazil. Mol Ecol 2017; 26:4756-4771. [DOI: 10.1111/mec.14239] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 05/30/2017] [Accepted: 07/02/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Marcelo Gehara
- Department of Herpetology American Museum of Natural History New York NY USA
| | - Adrian A. Garda
- Departamento de Botânica e Zoologia Centro de Biociências Universidade Federal do Rio Grande do Norte Lagoa Nova Natal RN Brazil
| | - Fernanda P. Werneck
- Coordenação de Biodiversidade Programa de Coleções Científicas Biológicas Instituto Nacional de Pesquisas da Amazônia (INPA) Manaus AM Brazil
| | - Eliana F. Oliveira
- Programa de Pós‐Graduação em Ecologia Universidade Federal do Rio Grande do Norte Lagoa Nova Natal, RN Brazil
- Centro de Ciências Biológicas e da Saúde Laboratório de Zoologia Cidade Universitária Universidade Federal do Mato Grosso do Sul Campo Grand MS Brazil
| | - Emanuel M. Fonseca
- Programa de Pós‐Graduação em Ecologia Universidade Federal do Rio Grande do Norte Lagoa Nova Natal, RN Brazil
| | - Felipe Camurugi
- Programa de Pós‐Graduação em Ciências Biológicas (Zoologia) Centro de Ciências Exatas e da Natureza Universidade Federal da Paraíba João Pessoa PB Brazil
| | - Felipe de M. Magalhães
- Programa de Pós‐Graduação em Ciências Biológicas (Zoologia) Centro de Ciências Exatas e da Natureza Universidade Federal da Paraíba João Pessoa PB Brazil
| | - Flávia M. Lanna
- Programa de Pós‐Graduação em Ecologia Universidade Federal do Rio Grande do Norte Lagoa Nova Natal, RN Brazil
| | - Jack W. Sites
- Department of Biology and Bean Life Science Museum Brigham Young University Provo UT USA
| | - Ricardo Marques
- Programa de Pós‐Graduação em Ciências Biológicas (Zoologia) Centro de Ciências Exatas e da Natureza Universidade Federal da Paraíba João Pessoa PB Brazil
| | - Ricardo Silveira‐Filho
- Programa de Pós‐Graduação em Ciências Biológicas (Zoologia) Centro de Ciências Exatas e da Natureza Universidade Federal da Paraíba João Pessoa PB Brazil
| | - Vinícius A. São Pedro
- Programa de Pós‐Graduação em Ecologia Universidade Federal do Rio Grande do Norte Lagoa Nova Natal, RN Brazil
- Centro de Ciências da Natureza Universidade Federal de São Carlos Buri SP Brazil
| | - Guarino R. Colli
- Departamento de Zoologia Universidade de Brasília Brasília Brazil
| | - Gabriel C. Costa
- Department of Biology Auburn University at Montgomery Montgomery AL USA
| | - Frank T. Burbrink
- Department of Herpetology American Museum of Natural History New York NY USA
| |
Collapse
|
20
|
Cornejo-Romero A, Vargas-Mendoza CF, Aguilar-Martínez GF, Medina-Sánchez J, Rendón-Aguilar B, Valverde PL, Zavala-Hurtado JA, Serrato A, Rivas-Arancibia S, Pérez-Hernández MA, López-Ortega G, Jiménez-Sierra C. Alternative glacial-interglacial refugia demographic hypotheses tested on Cephalocereus columna-trajani (Cactaceae) in the intertropical Mexican drylands. PLoS One 2017; 12:e0175905. [PMID: 28426818 PMCID: PMC5398652 DOI: 10.1371/journal.pone.0175905] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 04/02/2017] [Indexed: 12/27/2022] Open
Abstract
Historic demography changes of plant species adapted to New World arid environments could be consistent with either the Glacial Refugium Hypothesis (GRH), which posits that populations contracted to refuges during the cold-dry glacial and expanded in warm-humid interglacial periods, or with the Interglacial Refugium Hypothesis (IRH), which suggests that populations contracted during interglacials and expanded in glacial times. These contrasting hypotheses are developed in the present study for the giant columnar cactus Cephalocereus columna-trajani in the intertropical Mexican drylands where the effects of Late Quaternary climatic changes on phylogeography of cacti remain largely unknown. In order to determine if the historic demography and phylogeographic structure of the species are consistent with either hypothesis, sequences of the chloroplast regions psbA-trnH and trnT-trnL from 110 individuals from 10 populations comprising the full distribution range of this species were analysed. Standard estimators of genetic diversity and structure were calculated. The historic demography was analysed using a Bayesian approach and the palaeodistribution was derived from ecological niche modelling to determine if, in the arid environments of south-central Mexico, glacial-interglacial cycles drove the genetic divergence and diversification of this species. Results reveal low but statistically significant population differentiation (FST = 0.124, P < 0.001), although very clear geographic clusters are not formed. Genetic diversity, haplotype network and Approximate Bayesian Computation (ABC) demographic analyses suggest a population expansion estimated to have taken place in the Last Interglacial (123.04 kya, 95% CI 115.3–130.03). The species palaeodistribution is consistent with the ABC analyses and indicates that the potential area of palaedistribution and climatic suitability were larger during the Last Interglacial and Holocene than in the Last Glacial Maximum. Overall, these results suggest that C. columna-trajani experienced an expansion following the warm conditions of interglacials, in accordance with the GRH.
Collapse
Affiliation(s)
- Amelia Cornejo-Romero
- Departamento de Zoología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, CD México, México
| | - Carlos Fabián Vargas-Mendoza
- Departamento de Zoología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, CD México, México
- * E-mail:
| | - Gustavo F. Aguilar-Martínez
- Departamento de Zoología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, CD México, México
| | | | - Beatriz Rendón-Aguilar
- Departamento de Biología, Universidad Autónoma Metropolitana-Iztapalapa, CD México, México
| | - Pedro Luis Valverde
- Departamento de Biología, Universidad Autónoma Metropolitana-Iztapalapa, CD México, México
| | | | - Alejandra Serrato
- Departamento de Hidrobiología, Universidad Autónoma Metropolitana-Iztapalapa, CD México, México
| | | | | | - Gerardo López-Ortega
- Departamento de Biología, Universidad Autónoma Metropolitana-Iztapalapa, CD México, México
| | - Cecilia Jiménez-Sierra
- Departamento de Biología, Universidad Autónoma Metropolitana-Iztapalapa, CD México, México
| |
Collapse
|
21
|
Vitorino LC, Lima-Ribeiro MS, Terribile LC, Collevatti RG. Demographical history and palaeodistribution modelling show range shift towards Amazon Basin for a Neotropical tree species in the LGM. BMC Evol Biol 2016; 16:213. [PMID: 27737632 PMCID: PMC5062830 DOI: 10.1186/s12862-016-0779-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 09/29/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND We studied the phylogeography and demographical history of Tabebuia serratifolia (Bignoniaceae) to understand the disjunct geographical distribution of South American seasonally dry tropical forests (SDTFs). We specifically tested if the multiple and isolated patches of SDTFs are current climatic relicts of a widespread and continuously distributed dry forest during the last glacial maximum (LGM), the so called South American dry forest refugia hypothesis, using ecological niche modelling (ENM) and statistical phylogeography. We sampled 235 individuals of T. serratifolia in 17 populations in Brazil and analysed the polymorphisms at three intergenic chloroplast regions and ITS nuclear ribosomal DNA. RESULTS Coalescent analyses showed a demographical expansion at the last c. 130 ka (thousand years before present). Simulations and ENM also showed that the current spatial pattern of genetic diversity is most likely due to a scenario of range expansion and range shift towards the Amazon Basin during the colder and arid climatic conditions associated with the LGM, matching the expected for the South American dry forest refugia hypothesis, although contrasting to the Pleistocene Arc hypothesis. Populations in more stable areas or with higher suitability through time showed higher genetic diversity. Postglacial range shift towards the Southeast and Atlantic coast may have led to spatial genome assortment due to leading edge colonization as the species tracks suitable environments, leading to lower genetic diversity in populations at higher distance from the distribution centroid at 21 ka. CONCLUSION Haplotype sharing or common ancestry among populations from Caatinga in Northeast Brazil, Atlantic Forest in Southeast and Cerrado biome and ENM evince the past connection among these biomes.
Collapse
Affiliation(s)
- Luciana Cristina Vitorino
- Laboratório de Genética & Biodiversidade, Instituto de Ciências Biológicas, (ICB), Universidade Federal de Goiás (UFG), Cx.P. 131, Goiânia, GO, 74001-970, Brazil
| | - Matheus S Lima-Ribeiro
- Laboratório de Macroecologia, Universidade Federal de Goiás (UFG), Campus Jataí, Cx.P. 03, Jataí, GO, 75801-615, Brazil
| | - Levi Carina Terribile
- Laboratório de Macroecologia, Universidade Federal de Goiás (UFG), Campus Jataí, Cx.P. 03, Jataí, GO, 75801-615, Brazil
| | - Rosane G Collevatti
- Laboratório de Genética & Biodiversidade, Instituto de Ciências Biológicas, (ICB), Universidade Federal de Goiás (UFG), Cx.P. 131, Goiânia, GO, 74001-970, Brazil.
| |
Collapse
|
22
|
de Melo WA, Lima-Ribeiro MS, Terribile LC, Collevatti RG. Coalescent Simulation and Paleodistribution Modeling for Tabebuia rosealba Do Not Support South American Dry Forest Refugia Hypothesis. PLoS One 2016; 11:e0159314. [PMID: 27458982 PMCID: PMC4961443 DOI: 10.1371/journal.pone.0159314] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 06/30/2016] [Indexed: 11/18/2022] Open
Abstract
Studies based on contemporary plant occurrences and pollen fossil records have proposed that the current disjunct distribution of seasonally dry tropical forests (SDTFs) across South America is the result of fragmentation of a formerly widespread and continuously distributed dry forest during the arid climatic conditions associated with the Last Glacial Maximum (LGM), which is known as the modern-day dry forest refugia hypothesis. We studied the demographic history of Tabebuia rosealba (Bignoniaceae) to understand the disjunct geographic distribution of South American SDTFs based on statistical phylogeography and ecological niche modeling (ENM). We specifically tested the dry forest refugia hypothesis; i.e., if the multiple and isolated patches of SDTFs are current climatic relicts of a widespread and continuously distributed dry forest during the LGM. We sampled 235 individuals across 18 populations in Central Brazil and analyzed the polymorphisms at chloroplast (trnS-trnG, psbA-trnH and ycf6-trnC intergenic spacers) and nuclear (ITS nrDNA) genomes. We performed coalescence simulations of alternative hypotheses under demographic expectations from two a priori biogeographic hypotheses (1. the Pleistocene Arc hypothesis and, 2. a range shift to Amazon Basin) and other two demographic expectances predicted by ENMs (3. expansion throughout the Neotropical South America, including Amazon Basin, and 4. retraction during the LGM). Phylogenetic analyses based on median-joining network showed haplotype sharing among populations with evidence of incomplete lineage sorting. Coalescent analyses showed smaller effective population sizes for T. roseoalba during the LGM compared to the present-day. Simulations and ENM also showed that its current spatial pattern of genetic diversity is most likely due to a scenario of range retraction during the LGM instead of the fragmentation from a once extensive and largely contiguous SDTF across South America, not supporting the South American dry forest refugia hypothesis.
Collapse
Affiliation(s)
- Warita Alves de Melo
- Laboratório de Genética & Biodiversidade, ICB, Universidade Federal de Goiás (UFG), Cx.P. 131, Goiânia, GO, Brasil
| | - Matheus S. Lima-Ribeiro
- Laboratório de Macroecologia, Universidade Federal de Goiás (UFG), Campus Jataí, Jataí, GO, Brasil
| | - Levi Carina Terribile
- Laboratório de Macroecologia, Universidade Federal de Goiás (UFG), Campus Jataí, Jataí, GO, Brasil
| | - Rosane G. Collevatti
- Laboratório de Genética & Biodiversidade, ICB, Universidade Federal de Goiás (UFG), Cx.P. 131, Goiânia, GO, Brasil
- * E-mail:
| |
Collapse
|
23
|
FERREIRA-JÚNIOR WALNIRG, SCHAEFER CARLOSE, CUNHA CÁTIAN, DUARTE TEMILZEG, CHIEREGATTO LUIZC, CARMO FLÁVIAM. Flood regime and water table determines tree distribution in a forest-savanna gradient in the Brazilian Pantanal. ACTA ACUST UNITED AC 2016; 88 Suppl 1:719-31. [DOI: 10.1590/0001-3765201620150341] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 07/29/2015] [Indexed: 11/21/2022]
Abstract
ABSTRACT This study aimed to recognized the preferential location of species of the tree sinusiae in response to a moisture gradient in Pantanal Matogrossense, Brazil. We established sampling plots of arboreal sinusiae along a soil moisture and flood gradient. Piezometers were installed, allowing monthly measurements of water table depth and flood height during one year. Detrended Correspondence Analysis, Gradient Direct Analysis, Multi-response Permutation Procedures and Indicator Species Analysis were performed to evaluate the effect of moisture gradient on tree distribution. The annual variation of water table is shallower and similar in Seasonally Flooded Forest and Termite Savanna, with increasing depths in Open Savanna, Savanna Forest and Dry Forest. Circa 64% of the species were characterized as having a preferential location in "terrestrial habitats normally not subjected to inundation", while 8% preferentially occur in "wet habitats". Lowest tree richness in flood-affected vegetation types is related to both present-day high climatic seasonality and Late Pleistocene dry paleoclimates in the Pantanal wetland. The tree distribution across different formations in the Pantanal shows a direct relationship with soil moisture gradient.
Collapse
|
24
|
Oliveira EF, Gehara M, São-Pedro VA, Chen X, Myers EA, Burbrink FT, Mesquita DO, Garda AA, Colli GR, Rodrigues MT, Arias FJ, Zaher H, Santos RML, Costa GC. Speciation with gene flow in whiptail lizards from a Neotropical xeric biome. Mol Ecol 2015; 24:5957-75. [PMID: 26502084 DOI: 10.1111/mec.13433] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 10/15/2015] [Accepted: 10/21/2015] [Indexed: 11/29/2022]
Abstract
Two main hypotheses have been proposed to explain the diversification of the Caatinga biota. The riverine barrier hypothesis (RBH) claims that the São Francisco River (SFR) is a major biogeographic barrier to gene flow. The Pleistocene climatic fluctuation hypothesis (PCH) states that gene flow, geographic genetic structure and demographic signatures on endemic Caatinga taxa were influenced by Quaternary climate fluctuation cycles. Herein, we analyse genetic diversity and structure, phylogeographic history, and diversification of a widespread Caatinga lizard (Cnemidophorus ocellifer) based on large geographical sampling for multiple loci to test the predictions derived from the RBH and PCH. We inferred two well-delimited lineages (Northeast and Southwest) that have diverged along the Cerrado-Caatinga border during the Mid-Late Miocene (6-14 Ma) despite the presence of gene flow. We reject both major hypotheses proposed to explain diversification in the Caatinga. Surprisingly, our results revealed a striking complex diversification pattern where the Northeast lineage originated as a founder effect from a few individuals located along the edge of the Southwest lineage that eventually expanded throughout the Caatinga. The Southwest lineage is more diverse, older and associated with the Cerrado-Caatinga boundaries. Finally, we suggest that C. ocellifer from the Caatinga is composed of two distinct species. Our data support speciation in the presence of gene flow and highlight the role of environmental gradients in the diversification process.
Collapse
Affiliation(s)
- Eliana F Oliveira
- Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN, 59072-970, Brazil
| | - Marcelo Gehara
- Pós-Graduação em Sistemática e Evolução, Universidade Federal do Rio Grande do Norte, Natal, RN, 59072-970, Brazil
| | - Vinícius A São-Pedro
- Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN, 59072-970, Brazil
| | - Xin Chen
- Department of Biology, 6S-143, College of Staten Island, The City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA.,Department of Biology, The Graduate School, City University of New York, New York, NY, 10016, USA
| | - Edward A Myers
- Department of Biology, 6S-143, College of Staten Island, The City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA.,Department of Biology, The Graduate School, City University of New York, New York, NY, 10016, USA
| | - Frank T Burbrink
- Department of Biology, 6S-143, College of Staten Island, The City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA.,Department of Biology, The Graduate School, City University of New York, New York, NY, 10016, USA.,Department of Herpetology, American Museum of Natural History, Central Park West at 79th Street, New York, NY, 10024-5192, USA
| | - Daniel O Mesquita
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, PB, 58000-00, Brazil
| | - Adrian A Garda
- Departamento de Botânica e Zoologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, RN, 59072-970, Brazil
| | - Guarino R Colli
- Departamento de Zoologia, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - Miguel T Rodrigues
- Departamento de Zoologia, Universidade de São Paulo, São Paulo, SP, 05422-970, Brazil
| | - Federico J Arias
- Departamento de Zoologia, Universidade de São Paulo, São Paulo, SP, 05422-970, Brazil
| | - Hussam Zaher
- Museu de Zoologia, Universidade de São Paulo, São Paulo, SP, 04263-000, Brazil
| | - Rodrigo M L Santos
- Departamento de Zoologia, Universidade de São Paulo, São Paulo, SP, 05422-970, Brazil
| | - Gabriel C Costa
- Departamento de Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN, 59072-970, Brazil
| |
Collapse
|
25
|
A unifying study of phenotypic and molecular genetic variability in natural populations of Anadenanthera colubrina var. cebil from Yungas and Paranaense biogeographic provinces in Argentina. J Genet 2015; 93:123-32. [PMID: 24840829 DOI: 10.1007/s12041-014-0347-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Anadenanthera colubrina var. cebil is a discontinuously distributed native tree species in South American subtropical forests. Thirteen quantitative traits and eight nuclear microsatellite loci were examined in individuals from two biogeographic provinces of Argentina to determine the number and composition of genetically distinguishable groups of individuals and explore possible spatial patterns of the phenotypic and genetic variability. Means of reproductive traits were higher in the Yungas than in the Paranaense biogeographic province, whereas five out of eight nonreproductive quantitative traits showed higher mean values in the latter. Variance coefficients were moderate, and there were significant differences between and within provinces. Three clusters were defined based on spatial model for cluster membership for quantitative traits. One cluster grouped the individuals from the Paranaense biogeographic province whereas the individuals from the Yungas biogeographic province grouped regarding its population of origin. Parameters of molecular genetic variability showed higher values in the Yungas than in the Paranaense biogeographic province. Observed heterozygosity was lower than expected heterozygosity in both biogeographic provinces, indicating an excess of homozygosity. The homozygosity test by Watterson and the exact test by Slatkin suggested diversifying selection for locus Ac41.1. Bayesian clustering spatial model for microsatellites loci data were performed for both all loci and for all loci excluding locus Ac41.1. In both analyses two clusters were inferred. Analysis of molecular variance revealed similar results for all genotypes and for all genotypes defined excluding locus Ac41.1. Most of the total variance is attributable to genetic variation within clusters. The presence of homogeneous clusters was detected for both the phenotypic and molecular genetic variability. Two Bayesian clustering analyses were performed according to molecular genetic data, and two clusters were inferred. Individuals were assigned to their provinces of origin. Genetic molecular variation was higher in the populations of the Yungas biogeographic province which translates into highly qualified populations for conservation. Populations from the Paranaense biogeographic province showed the highest mean value of number of seeds per fruit making them valuable as well with regard to the exploitation of management strategies as a means to recover the impacted areas where these populations are located.
Collapse
|
26
|
Collevatti RG, Terribile LC, Diniz-Filho JAF, Lima-Ribeiro MS. Multi-model inference in comparative phylogeography: an integrative approach based on multiple lines of evidence. Front Genet 2015; 6:31. [PMID: 25741360 PMCID: PMC4330920 DOI: 10.3389/fgene.2015.00031] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 01/22/2015] [Indexed: 12/05/2022] Open
Abstract
Comparative phylogeography has its roots in classical biogeography and, historically, relies on a pattern-based approach. Here, we present a model-based framework for comparative phylogeography. Our framework was initially developed for statistical phylogeography based on a multi-model inference approach, by coupling ecological niche modeling, coalescent simulation and direct spatio-temporal reconstruction of lineage diffusion using a relaxed random walk model. This multi-model inference framework is particularly useful to investigate the complex dynamics and current patterns in genetic diversity in response to processes operating on multiple taxonomic levels in comparative phylogeography. In addition, because of the lack, or incompleteness of fossil record, the understanding of the role of biogeographical events (vicariance and dispersal routes) in most regions worldwide is barely known. Thus, we believe that the expansion of that framework for multiple species under a comparative approach may give clues on genetic legacies in response to Quaternary climate changes and other biogeographical processes.
Collapse
Affiliation(s)
- Rosane G Collevatti
- Laboratório de Genética & Biodiversidade, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia Brazil
| | - Levi C Terribile
- Laboratório de Macroecologia, Universidade Federal de Goiás, Jataí Brazil
| | - José A F Diniz-Filho
- Departamento de Ecologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia Brazil
| | | |
Collapse
|
27
|
THE DISTRIBUTION OF WOODY LEGUMES IN NEOTROPICAL DRY FORESTS: THE PLEISTOCENE ARC THEORY 20 YEARS ON. ACTA ACUST UNITED AC 2014. [DOI: 10.1017/s0960428614000298] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The Pleistocene Arc Theory (PAT) suggests that present-day disjunct fragments of dry forests in central tropical South America give evidence of a previously more continuous distribution during the Pleistocene that has been disrupted by dry-cold vs. humid-warm climatic cycles. This Arc extends from NE Brazil to NE Argentina and eastern Paraguay, through the Chiquitanía to NW Argentina and SW Bolivia and into the dry inter-Andean valleys in Peru and Ecuador, with intrusions into the Great Chaco. Seasonally Dry Tropical Forests (SDTFs) are floristically and physiognomically dominated by woody legumes, mostly deciduous in the dry season. In the last two decades field collection and research on legume taxa has greatly increased, with a significant number of taxonomic revisions and molecular phylogenetic studies, together with some paleoclimatic modelling studies. The evidence accumulated in the last 23 years has confirmed the integrity of the Chaco and Caatingas phytogeographical provinces, with an impressive and increasing level of botanical endemism discovered. The PAT pattern has also been supported, specifically through the mapping of five selected woody Leguminosae species (Anadenanthera colubrina, Enterolobium contortisiliquum, Pterogyne nitens, Amburana cearensis and Piptadenia viridiflora). The pre-existing nuclei of South American SDTF (Caatingas, Misiones and Piedmont) are now increased to four with the postulation of the Chiquitanía Nucleus in south-eastern Bolivia and bordering Paraguay. Some new endemisms are compiled from recent literature and mapped for the Misiones and Chiquitanía nuclei. The need for more botanical collections and further taxonomic, phylogenetic and demographic studies of South American legumes is emphasised.
Collapse
|
28
|
Magalhaes ILF, Oliveira U, Santos FR, Vidigal THDA, Brescovit AD, Santos AJ. Strong spatial structure, Pliocene diversification and cryptic diversity in the Neotropical dry forest spiderSicarius cariri. Mol Ecol 2014; 23:5323-36. [DOI: 10.1111/mec.12937] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Revised: 09/18/2014] [Accepted: 09/19/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Ivan L. F. Magalhaes
- Departamento de Zoologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, 31270-901; Belo Horizonte Minas Gerais Brazil
- División Aracnología; Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia’; Av. Angel Gallardo 470 C1405DJR Buenos Aires Argentina
| | - Ubirajara Oliveira
- Departamento de Zoologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, 31270-901; Belo Horizonte Minas Gerais Brazil
| | - Fabrício R. Santos
- Departamento de Biologia Geral; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901; Belo Horizonte Minas Gerais Brazil
| | - Teofânia H. D. A. Vidigal
- Departamento de Zoologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, 31270-901; Belo Horizonte Minas Gerais Brazil
| | - Antonio D. Brescovit
- Laboratório Especial de Coleções Zoológicas; Instituto Butantan, Av. Vital Brazil 1500, 05503-900; São Paulo Brazil
| | - Adalberto J. Santos
- Departamento de Zoologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, 31270-901; Belo Horizonte Minas Gerais Brazil
| |
Collapse
|
29
|
Pinheiro F, Cozzolino S, Draper D, de Barros F, Félix LP, Fay MF, Palma-Silva C. Rock outcrop orchids reveal the genetic connectivity and diversity of inselbergs of northeastern Brazil. BMC Evol Biol 2014; 14:49. [PMID: 24629134 PMCID: PMC4004418 DOI: 10.1186/1471-2148-14-49] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 03/07/2014] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Because of their fragmented nature, inselberg species are interesting biological models for studying the genetic consequences of disjoint populations. Inselbergs are commonly compared with oceanic islands, as most of them display a marked ecological isolation from the surrounding area. The isolation of these rock outcrops is reflected in the high number of recorded endemic species and the strong floristic differences between individual inselbergs and adjacent habitats. We examined the genetic connectivity of orchids Epidendrum cinnabarinum and E. secundum adapted to Neotropical inselbergs of northeastern Brazil. Our goals were to identify major genetic divergences or disjunctions across the range of the species and to investigate potential demographic and evolutionary mechanisms leading to lineage divergence in Neotropical mountain ecosystems. RESULTS Based on plastid markers, high genetic differentiation was found for E. cinnabarinum (FST = 0.644) and E. secundum (FST = 0.636). Haplotypes were not geographically structured in either taxon, suggesting that restricted gene flow and genetic drift may be significant factors influencing the diversification of these inselberg populations. Moreover, strong differentiation was found between populations over short spatial scales, indicating substantial periods of isolation among populations. For E. secundum, nuclear markers indicated higher gene flow by pollen than by seeds. CONCLUSIONS The comparative approach adopted in this study contributed to the elucidation of patterns in both species. Our results confirm the ancient and highly isolated nature of inselberg populations. Both species showed similar patterns of genetic diversity and structure, highlighting the importance of seed-restricted gene flow and genetic drift as drivers of plant diversification in terrestrial islands such as inselbergs.
Collapse
Affiliation(s)
- Fábio Pinheiro
- Instituto de Botânica, Núcleo de Pesquisa do Orquidário do Estado, Avenida Miguel Estéfano 3687, 04301-012 São Paulo, SP, Brazil.
| | | | | | | | | | | | | |
Collapse
|
30
|
Quijano-Abril MA, Gregorio Mejía-Franco F, Callejas-Posada R. Análisis panbiogeográfico de Enckea (Piperaceae), un pequeño clado de bosques secos en la filogenia de un gran género de bosques húmedos. REV MEX BIODIVERS 2014. [DOI: 10.7550/rmb.37002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
31
|
Beati L, Nava S, Burkman EJ, Barros-Battesti DM, Labruna MB, Guglielmone AA, Cáceres AG, Guzmán-Cornejo CM, León R, Durden LA, Faccini JLH. Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae), the Cayenne tick: phylogeography and evidence for allopatric speciation. BMC Evol Biol 2013; 13:267. [PMID: 24320199 PMCID: PMC3890524 DOI: 10.1186/1471-2148-13-267] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 12/03/2013] [Indexed: 11/10/2022] Open
Abstract
Background Amblyomma cajennense F. is one of the best known and studied ticks in the New World because of its very wide distribution, its economical importance as pest of domestic ungulates, and its association with a variety of animal and human pathogens. Recent observations, however, have challenged the taxonomic status of this tick and indicated that intraspecific cryptic speciation might be occurring. In the present study, we investigate the evolutionary and demographic history of this tick and examine its genetic structure based on the analyses of three mitochondrial (12SrDNA, d-loop, and COII) and one nuclear (ITS2) genes. Because A. cajennense is characterized by a typical trans-Amazonian distribution, lineage divergence dating is also performed to establish whether genetic diversity can be linked to dated vicariant events which shaped the topology of the Neotropics. Results Total evidence analyses of the concatenated mtDNA and nuclear + mtDNA datasets resulted in well-resolved and fully congruent reconstructions of the relationships within A. cajennense. The phylogenetic analyses consistently found A. cajennense to be monophyletic and to be separated into six genetic units defined by mutually exclusive haplotype compositions and habitat associations. Also, genetic divergence values showed that these lineages are as distinct from each other as recognized separate species of the same genus. The six clades are deeply split and node dating indicates that they started diverging in the middle-late Miocene. Conclusions Behavioral differences and the results of laboratory cross-breeding experiments had already indicated that A. cajennense might be a complex of distinct taxonomic units. The combined and congruent mitochondrial and nuclear genetic evidence from this study reveals that A. cajennense is an assembly of six distinct species which have evolved separately from each other since at least 13.2 million years ago (Mya) in the earliest and 3.3 Mya in the latest lineages. The temporal and spatial diversification modes of the six lineages overlap the phylogeographical history of other organisms with similar extant trans-Amazonian distributions and are consistent with the present prevailing hypothesis that Neotropical diversity often finds its origins in the Miocene, after the Andean uplift changed the topology and consequently the climate and ecology of the Neotropics.
Collapse
Affiliation(s)
- Lorenza Beati
- Institute for Coastal Plain Sciences and Biology Department, Georgia Southern University, P,O, Box 8056, Statesboro, GA 30460, USA.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
de Carvalho ALG, de Britto MR, Fernandes DS. Biogeography of the lizard genus Tropidurus Wied-Neuwied, 1825 (Squamata: Tropiduridae): distribution, endemism, and area relationships in South America. PLoS One 2013; 8:e59736. [PMID: 23527261 PMCID: PMC3602109 DOI: 10.1371/journal.pone.0059736] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Accepted: 02/21/2013] [Indexed: 11/18/2022] Open
Abstract
Based on comprehensive distributional records of the 23 species currently assigned to the lizard genus Tropidurus, we investigated patterns of endemism and area relationships in South America. Two biogeographic methods were applied, Parsimony Analysis of Endemicity (PAE) and Brooks Parsimony Analysis (BPA). Two areas of endemism were detected by PAE: the first within the domains of the semiarid Brazilian Caatinga, which includes seven endemic species, and the second in the region of the Serranía de Huanchaca, eastern Bolivia, in which three endemic species are present. The area cladograms recovered a close relationship between the Atlantic Forest and areas of the South American open corridor. The results revealed a close relationship among the provinces Caatinga (Cerrado, Parana Forest (Pantanal+Chaco)). The uplift of the Brazilian Central Plateau in the Late Pliocene-Early Pleistocene (4-2 Myr BP) has been interpreted as a major event responsible for isolation and differentiation of biotas along these areas. However, we emphasize that without the establishment of a temporal framework concerning the diversification history of Tropidurus it is premature to correlate cladogenetic events with specific time periods or putative vicariant scenarios. The limiting factors hampering the understanding of the biogeographic history of this genus include (1) the absence of temporal references in relation to the diversification of distinct clades within Tropidurus; (2) the lack of an appropriate taxonomic resolution of the species complexes currently represented by widely distributed forms; and (3) the need for a comprehensive phylogenetic hypothesis. We suggest that these three important aspects should be prioritized in future investigations.
Collapse
Affiliation(s)
- André Luiz Gomes de Carvalho
- Richard Gilder Graduate School, American Museum of Natural History, New York, New York, United States of America.
| | | | | |
Collapse
|
33
|
Ramírez-Barahona S, Eguiarte LE. The role of glacial cycles in promoting genetic diversity in the Neotropics: the case of cloud forests during the Last Glacial Maximum. Ecol Evol 2013; 3:725-38. [PMID: 23531632 PMCID: PMC3605859 DOI: 10.1002/ece3.483] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 12/06/2012] [Accepted: 12/11/2012] [Indexed: 11/30/2022] Open
Abstract
The increasing aridity during the Last Glacial Maximum (LGM) has been proposed as a major factor affecting Neotropical species. The character and intensity of this change, however, remains the subject of ongoing debate. This review proposes an approach to test contrasting paleoecological hypotheses by way of their expected demographic and genetic effects on Neotropical cloud forest species. We reviewed 48 paleoecological records encompassing the LGM in the Neotropics. The records show contrasting evidence regarding the changes in precipitation during this period. Some regions remained fairly moist and others had a significantly reduced precipitation. Many paleoecological records within the same region show apparently conflicting evidence on precipitation and forest stability. From these data, we propose and outline two demographic/genetic scenarios for cloud forests species based on opposite precipitation regimes: the dry refugia and the moist forests hypotheses. We searched for studies dealing with the population genetic structure of cloud forest and other montane taxa and compared their results with the proposed models. To date, the few available molecular studies show insufficient genetic evidence on the predominance of glacial aridity in the Neotropics. In order to disentangle the climatic history of the Neotropics, the present study calls for a general multi-disciplinary approach to conduct future phylogeographic studies. Given the contradictory paleoecological information, population genetic data on Neotropical cloud forest species should be used to explicitly test the genetic consequences of competing paleoecological models.
Collapse
Affiliation(s)
- Santiago Ramírez-Barahona
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México Mexico City, Mexico
| | | |
Collapse
|
34
|
Turchetto-Zolet AC, Pinheiro F, Salgueiro F, Palma-Silva C. Phylogeographical patterns shed light on evolutionary process in South America. Mol Ecol 2012; 22:1193-213. [PMID: 23279129 DOI: 10.1111/mec.12164] [Citation(s) in RCA: 214] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Revised: 10/31/2012] [Accepted: 11/06/2012] [Indexed: 11/28/2022]
Abstract
The South American continent is composed of several biogeographical regions harbouring the highest biodiversity on the globe, encompassing five of the world's biodiversity 'hot spots'. Nonetheless, the patterns and processes responsible for shaping its astonishing species diversity are largely unknown. Here, we present a review of current South American phylogeographical knowledge based on published articles on this topic. An appraisal of the literature reveals emerging phylogeographical patterns in the biota of South America. The striking phylogeographical divergence observed among organism lineages in South American studies is suggestive of high levels of undocumented species diversity. The interplay between Pleistocene climatic oscillations and Pliocene/Miocene orogenic events has contributed to shaping the current diversity and distribution of modern lineages in both the tropical and temperate regions of South America. Although older divergence times were observed for a range of species, most herpetofauna underwent an intraspecific lineage split much earlier than other organisms. The geographical ranges of species associated with forest habitats were reduced mainly during glacial cycles, whereas species associated with open vegetation domains have shown variable responses to climatic oscillations. The results suggest a highly complex mosaic of phylogeographical patterns in South America. We suggest future research directions to promote a better understanding of the origin and maintenance of the South American biota.
Collapse
Affiliation(s)
- A C Turchetto-Zolet
- Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, IB/UFRGS, Porto Alegre, RS, Brazil
| | | | | | | |
Collapse
|
35
|
Collevatti RG, Terribile LC, Lima-Ribeiro MS, Nabout JC, de Oliveira G, Rangel TF, Rabelo SG, Diniz-Filho JAF. A coupled phylogeographical and species distribution modelling approach recovers the demographical history of a Neotropical seasonally dry forest tree species. Mol Ecol 2012; 21:5845-63. [PMID: 23094833 DOI: 10.1111/mec.12071] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 08/23/2012] [Accepted: 08/28/2012] [Indexed: 11/29/2022]
Abstract
We investigated here the demographical history of Tabebuia impetiginosa (Bignoniaceae) to understand the dynamics of the disjunct geographical distribution of South American seasonally dry forests (SDFs), based on coupling an ensemble approach encompassing hindcasting species distribution modelling and statistical phylogeographical analysis. We sampled 17 populations (280 individuals) in central Brazil and analysed the polymorphisms at chloroplast (trnS-trnG, psbA-trnH, and ycf6-trnC intergenic spacers) and nuclear (ITS nrDNA) genomes. Phylogenetic analyses based on median-joining network showed no haplotype sharing among population but strong evidence of incomplete lineage sorting. Coalescent analyses showed historical constant populations size, negligible gene flow among populations, and an ancient time to most recent common ancestor dated from ~4.7 ± 1.1 Myr BP. Most divergences dated from the Lower Pleistocene, and no signal of important population size reduction was found in coalescent tree and tests of demographical expansion. Demographical scenarios were built based on past geographical range dynamic models, using two a priori biogeographical hypotheses ('Pleistocene Arc' and 'Amazonian SDF expansion') and on two additional hypotheses suggested by the palaeodistribution modelling built with several algorithms for distribution modelling and palaeoclimatic data. The simulation of these demographical scenarios showed that the pattern of diversity found so far for T. impetiginosa is in consonance with a palaeodistribution expansion during the last glacial maximum (LGM, 21 kyr BP), strongly suggesting that the current disjunct distribution of T. impetiginosa in SDFs may represent a climatic relict of a once more wide distribution.
Collapse
Affiliation(s)
- Rosane G Collevatti
- Laboratório de Genética & Biodiversidade, ICB, Universidade Federal de Goiás, Cx.P. 131, 74001-970 Goiânia, GO, Brasil.
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Odee DW, Telford A, Wilson J, Gaye A, Cavers S. Plio-Pleistocene history and phylogeography of Acacia senegal in dry woodlands and savannahs of sub-Saharan tropical Africa: evidence of early colonisation and recent range expansion. Heredity (Edinb) 2012; 109:372-82. [PMID: 22929152 DOI: 10.1038/hdy.2012.52] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Drylands are extensive across sub-Saharan Africa, socio-economically and ecologically important yet highly sensitive to environmental changes. Evolutionary history, as revealed by contemporary intraspecific genetic variation, can provide valuable insight into how species have responded to past environmental and population changes and guide strategies to promote resilience to future changes. The gum arabic tree (Acacia senegal) is an arid-adapted, morphologically diverse species native to the sub-Saharan drylands. We used variation in nuclear sequences (internal transcribed spacer (ITS)) and two types of chloroplast DNA (cpDNA) markers (PCR-RFLP, cpSSR) to study the phylogeography of the species with 293 individuals from 66 populations sampled across its natural range. cpDNA data showed high regional and rangewide haplotypic diversity (h(T(cpSSR))=0.903-0.948) and population differentiation (G(ST(RFLP))=0.700-0.782) with a phylogeographic pattern that indicated extensive historical gene flow via seed dispersal. Haplotypes were not restricted to any of the four varieties, but showed significant geographic structure (G(ST(cpSSR))=0.392; R(ST)=0.673; R(ST)>R(ST) (permuted)), with the major division separating East and Southern Africa populations from those in West and Central Africa. Phylogenetic analysis of ITS data indicated a more recent origin for the clade including West and Central African haplotypes, suggesting range expansion in this region, possibly during the Holocene humid period. In conjunction with paleobotanical evidence, our data suggest dispersal to West Africa, and across to the Arabian Peninsula and Indian subcontinent, from source populations located in the East African region during climate oscillations of the Plio-Pleistocene.
Collapse
Affiliation(s)
- D W Odee
- Centre for Ecology & Hydrology, Bush Estate, Penicuik, Midlothian, Scotland, UK.
| | | | | | | | | |
Collapse
|
37
|
Smith BT, Amei A, Klicka J. Evaluating the role of contracting and expanding rainforest in initiating cycles of speciation across the Isthmus of Panama. Proc Biol Sci 2012; 279:3520-6. [PMID: 22673352 DOI: 10.1098/rspb.2012.0706] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Climatic and geological changes across time are presumed to have shaped the rich biodiversity of tropical regions. However, the impact climatic drying and subsequent tropical rainforest contraction had on speciation has been controversial because of inconsistent palaeoecological and genetic data. Despite the strong interest in examining the role of climatic change on speciation in the Neotropics there has been few comparative studies, particularly, those that include non-rainforest taxa. We used bird species that inhabit humid or dry habitats that dispersed across the Panamanian Isthmus to characterize temporal and spatial patterns of speciation across this barrier. Here, we show that these two assemblages of birds exhibit temporally different speciation time patterns that supports multiple cycles of speciation. Evidence for these cycles is further corroborated by the finding that both assemblages consist of 'young' and 'old' species, despite dry habitat species pairs being geographically more distant than pairs of humid habitat species. The matrix of humid and dry habitats in the tropics not only allows for the maintenance of high species richness, but additionally this study suggests that these environments may have promoted speciation. We conclude that differentially expanding and contracting distributions of dry and humid habitats was probably an important contributor to speciation in the tropics.
Collapse
Affiliation(s)
- Brian Tilston Smith
- School of Life Sciences, University of Nevada, Las Vegas, 4505 S. Maryland Parkway Box 4505, Las Vegas, NV 89154, USA.
| | | | | |
Collapse
|
38
|
Werneck FP, Gamble T, Colli GR, Rodrigues MT, Sites Jr JW. DEEP DIVERSIFICATION AND LONG-TERM PERSISTENCE IN THE SOUTH AMERICAN ‘DRY DIAGONAL’: INTEGRATING CONTINENT-WIDE PHYLOGEOGRAPHY AND DISTRIBUTION MODELING OF GECKOS. Evolution 2012; 66:3014-34. [DOI: 10.1111/j.1558-5646.2012.01682.x] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
39
|
Caetano S, Currat M, Pennington RT, Prado D, Excoffier L, Naciri Y. Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae). Mol Ecol 2012; 21:2743-60. [PMID: 22509817 DOI: 10.1111/j.1365-294x.2012.05562.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
This study puts together genetic data and an approximate bayesian computation (ABC) approach to infer the time at which the tree Geoffroea spinosa colonized the Galápagos Islands. The genetic diversity and differentiation between Peru and Galápagos population samples, estimated using three chloroplast spacers and six microsatellite loci, reveal significant differences between two mainland regions separated by the Andes mountains (Inter Andean vs. Pacific Coast) as well as a significant genetic differentiation of island populations. Microsatellites identify two distinct geographical clusters, the Galápagos and the mainland, and chloroplast markers show a private haplotype in the Galápagos. The nuclear distinctiveness of the Inter Andean populations suggests current restricted pollen flow, but chloroplast points to cross-Andean dispersals via seeds, indicating that the Andes might not be an effective biogeographical barrier. The ABC analyses clearly point to the colonization of the Galápagos within the last 160,000 years and possibly as recently as 4750 years ago (475 generations). Founder events associated with colonization of the two islands where the species occurs are detected, with Española having been colonized after Floreana. We discuss two nonmutually exclusive possibilities for the colonization of the Galápagos, recent natural dispersal vs. human introduction.
Collapse
Affiliation(s)
- S Caetano
- Plant Systematics and Biodiversity Laboratory, Molecular Phylogeny and Genetics Unit, Conservatoire et Jardin botaniques, 1 Chemin de l'Impératrice, CP 60, CH-1292 Chambésy, Genève, Switzerland
| | | | | | | | | | | |
Collapse
|
40
|
Molecular evidence of cryptic speciation, historical range expansion, and recent intraspecific hybridization in the Neotropical seasonal forest tree Cedrela fissilis (Meliaceae). Mol Phylogenet Evol 2011; 61:639-49. [DOI: 10.1016/j.ympev.2011.08.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2010] [Revised: 08/26/2011] [Accepted: 08/27/2011] [Indexed: 11/15/2022]
|
41
|
Jansen M, Bloch R, Schulze A, Pfenninger M. Integrative inventory of Bolivia’s lowland anurans reveals hidden diversity. ZOOL SCR 2011. [DOI: 10.1111/j.1463-6409.2011.00498.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
42
|
Sequeira F, Sodré D, Ferrand N, Bernardi JAR, Sampaio I, Schneider H, Vallinoto M. Hybridization and massive mtDNA unidirectional introgression between the closely related Neotropical toads Rhinella marina and R. schneideri inferred from mtDNA and nuclear markers. BMC Evol Biol 2011; 11:264. [PMID: 21939538 PMCID: PMC3192708 DOI: 10.1186/1471-2148-11-264] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Accepted: 09/22/2011] [Indexed: 11/18/2022] Open
Abstract
Background The classical perspective that interspecific hybridization in animals is rare has been changing due to a growing list of empirical examples showing the occurrence of gene flow between closely related species. Using sequence data from cyt b mitochondrial gene and three intron nuclear genes (RPL9, c-myc, and RPL3) we investigated patterns of nucleotide polymorphism and divergence between two closely related toad species R. marina and R. schneideri. By comparing levels of differentiation at nuclear and mtDNA levels we were able to describe patterns of introgression and infer the history of hybridization between these species. Results All nuclear loci are essentially concordant in revealing two well differentiated groups of haplotypes, corresponding to the morphologically-defined species R. marina and R. schneideri. Mitochondrial DNA analysis also revealed two well-differentiated groups of haplotypes but, in stark contrast with the nuclear genealogies, all R. schneideri sequences are clustered with sequences of R. marina from the right Amazon bank (RAB), while R. marina sequences from the left Amazon bank (LAB) are monophyletic. An Isolation-with-Migration (IM) analysis using nuclear data showed that R. marina and R. schneideri diverged at ≈ 1.69 Myr (early Pleistocene), while R. marina populations from LAB and RAB diverged at ≈ 0.33 Myr (middle Pleistocene). This time of divergence is not consistent with the split between LAB and RAB populations obtained with mtDNA data (≈ 1.59 Myr), which is notably similar to the estimate obtained with nuclear genes between R. marina and R. schneideri. Coalescent simulations of mtDNA phylogeny under the speciation history inferred from nuclear genes rejected the hypothesis of incomplete lineage sorting to explain the conflicting signal between mtDNA and nuclear-based phylogenies. Conclusions The cytonuclear discordance seems to reflect the occurrence of interspecific hybridization between these two closely related toad species. Overall, our results suggest a phenomenon of extensive mtDNA unidirectional introgression from the previously occurring R. schneideri into the invading R. marina. We hypothesize that climatic-induced range shifts during the Pleistocene/Holocene may have played an important role in the observed patterns of introgression.
Collapse
|
43
|
Shi MM, Michalski SG, Chen XY, Durka W. Isolation by elevation: genetic structure at neutral and putatively non-neutral loci in a dominant tree of subtropical forests, Castanopsis eyrei. PLoS One 2011; 6:e21302. [PMID: 21701584 PMCID: PMC3118804 DOI: 10.1371/journal.pone.0021302] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Accepted: 05/24/2011] [Indexed: 11/18/2022] Open
Abstract
Background The distribution of genetic diversity among plant populations growing along elevational gradients can be affected by neutral as well as selective processes. Molecular markers used to study these patterns usually target neutral processes only, but may also be affected by selection. In this study, the effects of elevation and successional stage on genetic diversity of a dominant tree species were investigated controlling for neutrality of the microsatellite loci used. Methodology/Principal Findings Diversity and differentiation among 24 populations of Castanopsis eyrei from different elevations (251–920 m) and successional stages were analysed by eight microsatellite loci. We found that one of the loci (Ccu97H18) strongly deviated from a neutral model of differentiation among populations due to either divergent selection or hitchhiking with an unknown selected locus. The analysis showed that C. eyrei populations had a high level of genetic diversity within populations (AR = 7.6, HE = 0.82). Genetic variation increased with elevation for both the putatively selected locus Ccu97H18 and the neutral loci. At locus Ccu97H18 one allele was dominant at low elevations, which was replaced at higher elevations by an increasing number of other alleles. The level of genetic differentiation at neutral loci was similar to that of other Fagaceae species (FST = 0.032, = 0.15). Population differentiation followed a model of isolation by distance but additionally, strongly significant isolation by elevation was found, both for neutral loci and the putatively selected locus. Conclusions/Significance The results indicate higher gene flow among similar elevational levels than across different elevational levels and suggest a selective influence of elevation on the distribution of genetic diversity in C. eyrei. The study underlines the importance to check the selective neutrality of marker loci in analyses of population structure.
Collapse
Affiliation(s)
- Miao-Miao Shi
- Helmholtz Centre for Environmental Research - UFZ, Department of Community Ecology (BZF), Halle, Germany.
| | | | | | | |
Collapse
|
44
|
Invasion genetics of Microstegium vimineum (Poaceae) within the James River Basin of Virginia, USA. CONSERV GENET 2011. [DOI: 10.1007/s10592-011-0186-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
45
|
de Oliveira LO, Rossi AAB, Martins ER, Batista FRDC, Silva RS. Molecular phylogeography of Carapichea ipecacuanha, an amphitropical shrub that occurs in the understory of both semideciduous and evergreen forests. Mol Ecol 2010; 19:1410-22. [PMID: 20298468 DOI: 10.1111/j.1365-294x.2010.04591.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The medicinal shrub Carapichea ipecacuanha (ipecac) is an amphitropic species with three disjunct areas of distribution. In the Brazilian Atlantic and Amazonian ranges, the species was associated mostly with the understory of seasonal semideciduous forests, whereas in the Central American-Colombian range, the species occurred in the understory of moist evergreen forests. We examined the phylogeographic structure of ipecac using chloroplast trnT-trnL and nuclear internal transcribed spacer (ITS) sequences from 120 and 46 specimens, respectively. To complement existing data on root alkaloid profiles, we used high-performance liquid chromatography to assess the levels of emetine and cephaeline in 33 specimens from the two Brazilian ranges. The three ranges shared neither nuclear nor chloroplast haplotypes. The phylogeographic structures showed an uneven distribution of genetic diversity, sharp breaks and high levels of genetic differentiation among ranges. Our results suggest that the extant populations are descendents of at least four distinct ancestral lineages. The Atlantic ipecacs showed higher levels of genetic diversity than ipecacs from the other two ranges; it is likely that they derive from two ancestral lineages, with long-term persistence in that region. The Amazonian ipecacs were monomorphic with respect to the ITS and cpDNA sequences, which supports the view that there was a recent expansion from a single parental source after a strong genetic bottleneck. The existence of a fourth distinct lineage is apparent from the high levels of genetic and chemical differentiation that we identified in the Central American-Columbian ipecacs.
Collapse
Affiliation(s)
- Luiz Orlando de Oliveira
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, 36570-000, Viçosa (MG), Brazil.
| | | | | | | | | |
Collapse
|
46
|
NOVAES RENANMILAGRESLAGE, DE LEMOS FILHO JOSÉPIRES, RIBEIRO RENATAACÁCIO, LOVATO MARIABERNADETE. Phylogeography ofPlathymenia reticulata(Leguminosae) reveals patterns of recent range expansion towards northeastern Brazil and southern Cerrados in Eastern Tropical South America. Mol Ecol 2010; 19:985-98. [DOI: 10.1111/j.1365-294x.2010.04530.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
47
|
Pennington RT, Lavin M, Oliveira-Filho A. Woody Plant Diversity, Evolution, and Ecology in the Tropics: Perspectives from Seasonally Dry Tropical Forests. ANNUAL REVIEW OF ECOLOGY EVOLUTION AND SYSTEMATICS 2009. [DOI: 10.1146/annurev.ecolsys.110308.120327] [Citation(s) in RCA: 452] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- R. Toby Pennington
- Tropical Diversity Section, Royal Botanic Garden Edinburgh, Edinburgh EH3 5LR, United Kingdom;
| | - Matt Lavin
- Plant Sciences and Plant Pathology, Montana State University, Bozeman, Montana 59717;
| | - Ary Oliveira-Filho
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Lavras, Minas Gerais, Brazil;
| |
Collapse
|
48
|
Collevatti RG, Rabelo SG, Vieira RF. Phylogeography and disjunct distribution in Lychnophora ericoides (Asteraceae), an endangered cerrado shrub species. ANNALS OF BOTANY 2009; 104:655-664. [PMID: 19656805 PMCID: PMC2729634 DOI: 10.1093/aob/mcp157] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2009] [Revised: 04/24/2009] [Accepted: 05/26/2009] [Indexed: 05/28/2023]
Abstract
BACKGROUND AND AIMS Lychnophora ericoides (Asteraceae) presents disjunct geographical distribution in cerrado rupestre in the south-east and central Brazil. The phylogeography of the species was investigated to understand the origin of the disjunct geographical distribution. METHODS Populations in the south and centre of Serra do Espinhaço, south-east Brazil and on ten other localities in Federal District and Goiás in central Brazil were sampled. Analyses were based on the polymorphisms at chloroplast (trnL intron and psbA-trnH intergenic spacer) and nuclear (ITS nrDNA) genomes. From 12 populations, 192 individuals were sequenced. Network analysis, AMOVA and the Mantel test were performed to understand the relationships among haplotypes and population genetic structure. To understand better the origin of disjunct distribution, demographic parameters and time to most recent common ancestor (T(MRCA)) were estimated using coalescent analyses. KEY RESULTS A remarkable differentiation between populations from the south-east and central Brazil was found and no haplotype was shared between these two regions. No significant effect of isolation by distance was detected. Coalescent analyses showed that some populations are shrinking and others are expanding and that gene flow between populations from the south-east and central Brazil was probably negligible. CONCLUSIONS The results strongly support that the disjunct distribution of L. ericoides may represent a climatic relict and that long-distance gene flow is unlikely. With an estimated time to most recent common ancestor (T(MRCA)) dated from approx. 790,655 +/- 36,551 years bp (chloroplast) and approx. 623,555 +/- 55,769 years bp (ITS), it was hypothesized that the disjunct distribution may be a consequence of an expansion of the geographical distribution favoured by the drier and colder conditions that prevailed in much of Brazil during the Kansan glaciation, followed by the retraction of the distribution due to the extinction of populations in some areas as climate became warmer and moister.
Collapse
Affiliation(s)
- Rosane Garcia Collevatti
- Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, SGAN 916, Mod. B, 70790-160, Brasília, DF, Brasil.
| | | | | |
Collapse
|
49
|
|