Species boundaries inferred from microsatellite markers in the Kielmeyera coriacea complex (Calophyllaceae) and evidence of asymmetric hybridization

Caddah, Mayara Krasinski; Campos, Tatiana de; Zucchi, Maria Imaculada; Souza, Anete Pereira de; Bittrich, Volker; Amaral, Maria do Carmo Estanislau do

doi:10.1007/s00606-012-0755-9

Cited by 14 publications

(8 citation statements)

References 74 publications

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“…Although the geographical proximity of closely related species may allow interspecific gene flow if reproductive barriers are not fully developed, only a handful of natural hybridization events between native tree species have been described at ETSA. Interspecific hybridization between Cerrado trees has been suggested previously for some pairs of species such as Handroanthus chrysotrichus and H. ochraceus (Bittencourt and Moraes 2010) and also for Kielmeyera coriaceae and K. grandiflora (Caddah et al 2013). In addition, studies have suggested a putative hybrid origin for some Cerrado tree species such as Eriotheca pubescens (Forni-Martins et al 1995), Tocoyena formosa (Silberbauer-Gottsberger et al 1992), and Anemopaegma arvense s.l.…”

Section: Communicated By S C González-martínezmentioning

confidence: 80%

Gene flow between vicariant tree species: insights into savanna-forest evolutionary relationships

Resende‐Moreira

Ramos

Scliar

et al. 2017

Tree Genetics & Genomes

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Studying the genetic structure of vicariant species (i.e., closely related species that occupy ecologically distinct yet adjacent habitats) can shed light on the evolution and divergence of species with different ecological requirements. A previous phylogeographic study identified chloroplast DNA haplotype sharing between two vicariant tree species, one from forest (Hymenaea courbaril) and one from savanna (H. stigonocarpa) habitats. These species co-occur in the Brazilian Cerrado, a biome that encompasses forest patches and riverine forests within a savanna matrix. In order to investigate the evolutionary processes involved in the genetic divergence of these trees, we used nuclear microsatellite markers, statistical methods including approximate Bayesian computation (ABC), and leaf morphology to analyze neighboring and distant populations. Bayesian analysis revealed admixture between the species. ABC analysis supported the scenarios with the occurrence of gene flow between species during the Last Glacial Maximum or from the Holocene to the present, when compared to alternative scenarios of no gene flow or constant gene flow since divergence. However, putative hybrids did not exhibit intermediate leaflet morphology, which could be related to distinct selective pressures maintaining species integrity even in the face of gene flow. Our results suggest that despite morphological differences between savanna and forest species, interspecific barriers to gene flow might not be fully developed between vicariant tree species and that interspecific hybridization in trees from Cerrado biome may be an underdiagnosed process.

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Section: Communicated By S C González-martínezmentioning

confidence: 80%

Gene flow between vicariant tree species: insights into savanna-forest evolutionary relationships

Resende‐Moreira

Ramos

Scliar

et al. 2017

Tree Genetics & Genomes

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“…Do total de 36 instituições, as que apresentaram o maior número de publicações foram, respectivamente, a Universidade Federal de Goiás (24 ou 14,0%), a Escola Superior de Agricultura "Luiz de Queiroz" (17 ou 9,90%), a Universidade Federal de Minas Gerais (17 ou 9,90%) e a Empresa Brasileira de Pesquisa Agropecuária (16 ou 9,40%; 5 publicações: Embrapa Cerrados, 4 publicações: CENARGEN, 1 publicação: Embrapa Agroenergia, Embrapa Agroflorestal, Embrapa MeioNorte, Embrapa Semiárido, Embrapa Soja, Embrapa Tabuleiros Costeiros e Embrapa Trigo). Desse total, 17 instituições foram representadas por apenas 1 publicação cada, e dentre estas, foram observadas instituições da Suíça (Conservatoire et jardin botaniques) (Caetano et al 2008) e Espanhola (Universidade de Santiago de Compostela) , ambas com colaborações de instituições brasileiras.…”

Section: Resultsunclassified

Tendências da literatura científica sobre genética de populações de plantas do Cerrado

Souza

Telles

Diniz‐Filho

2016

Hoehnea

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-(Trends in the scientific literature on population genetics of plants from Cerrado). The Cerrado biome is considered one of the biodiversity hotspots in the world, due to both the large extent of natural vegetation that has been continually lost and the high number of endemic plant species. It has often been listed as a priority in conservation programs and in population genetic studies. In order to determine trends in plant population genetic studies in this biome, a scientometric evaluation of published and available articles in different databases was performed. A total of 171 publications from 48 journals was found between the years 1999 and 2014, with the number of publications increasing significantly during this period. Ninety-one species with different life forms were studied, using different types of molecular markers. These analyses confer a better understanding of the current knowledge of plant population genetics in the Cerrado biome. Keywords: scientometrics, genetic diversity, genetic divergence, molecular markers RESUMO -(Tendências da literatura científica sobre genética de populações de plantas do Cerrado). O Cerrado é considerado um dos "hotspots" mundiais de biodiversidade, em função da grande extensão de vegetação natural que vem sendo continuamente perdida e do elevado número de espécies endêmicas de plantas, que muitas vezes têm sido listadas como prioridades em programas de conservação e para estudos de genética de populações. A fim de verificar tendências nos estudos de genética de populações das espécies de plantas deste bioma, uma avaliação cienciométrica dos artigos publicados e disponíveis em diferentes bases de dados foi realizada. Um total de 171 publicações provenientes de 48 periódicos foi encontrada, entre os anos de 1999 a 2014, com o número de publicações aumentando significativamente nesse período. Noventa e uma espécies com diferentes formas de vida foram estudadas, usando diferentes tipos de marcadores moleculares. A análise cienciometrica dos artigos encontrados permitiu uma melhor compreensão do conhecimento atual sobre a genética de populações de plantas do bioma Cerrado. Palavras-chave: cienciometria, diversidade genética, divergência genética, marcadores moleculares IntroduçãoO Cerrado, entre os seis biomas brasileiros, é o segundo maior em extensão, sendo superado apenas pela Amazônia, com uma área de aproximadamente 2 milhões de km 2 , o que representa cerca de 23% do território brasileiro (Bridgewater et al. 2004, Klink & Machado 2005. Reconhecido como a savana mais rica do mundo, possui uma flora composta pelas mesmas famílias e muitos dos mesmos gêneros e espécies que ocorrem nas Florestas Atlântica e Amazônica, com composição florística variando de acordo com a localização geográfica e tipo de fitofisionomia (Méio et al. 2003, Bridgewater et al. 2004).Dependendo do predomínio ou da proporção das diferentes formas de vida, bem como de sua densidade, caducidade foliar, entre outras características, diferentes estruturas e fitofisionomias são formadas, con...

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“…Studies using molecular markers also showed a preference for population genetic methods ( Figure 5A). In many cases, these studies commonly reflected associations between the botany and genetics departments of different institutions (Moraes et al, 2012;Caddah et al, 2013). In these studies, genetic differentiation among populations and lineages was crucial to identify the existence of different species.…”

Section: Use Of Molecular Markers To Investigate Species Complexesmentioning

confidence: 99%

“…Use of highly informative markers such as microsatellites, coupled with Bayesian assignment methods (i.e., Pritchard et al, 2000), holds great promise for studying species delimitation and speciation processes. For example, Moraes et al (2012) and Caddah et al (2013) depicted complex patterns of Figure 6. Network showing connections between research fields addressed in studies of species complexes, when adopting a multidisciplinary approach.…”

Section: Use Of Molecular Markers To Investigate Species Complexesmentioning

confidence: 99%

Plant Species Complexes as Models to Understand Speciation and Evolution: A Review of South American Studies

Pinheiro

Dantas-Queiroz

Palma‐Silva

2018

Critical Reviews in Plant Sciences

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Identifying discontinuous entities within species complexes is a major topic in systematic and evolutionary biology. Comprehensive inventories describing and identifying species rapidly and correctly before they or their habitats disappear is especially important in megadiverse regions, such as South America continent, where a large part of the biodiversity is still unknown and remains to be discovered. Species complexes may account for a substantial number of plant groups in the South American flora, and studies investigating species boundaries in such challenging groups are needed. In this context, multidisciplinary approaches are crucial to understanding the species integrity and boundaries within species complexes. Morphometrics, cytogenetics, anatomy, crossing experiments, and molecular markers have been combined in different ways to investigate species complexes and have helped depict the mechanisms underlying the origin of South American species. Here, we review the current knowledge about plant species complexes on the hyperdiverse South American continent based on a detailed examination of the relevant literature. We discuss the main findings in light of the potential evolutionary mechanisms involved in speciation and suggest future directions in terms of integrating multispecies coalescence methods with several complementary types of morphological, ecological, and geographical data in this research field.

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Species boundaries inferred from microsatellite markers in the Kielmeyera coriacea complex (Calophyllaceae) and evidence of asymmetric hybridization

Cited by 14 publications

References 74 publications

Gene flow between vicariant tree species: insights into savanna-forest evolutionary relationships

Gene flow between vicariant tree species: insights into savanna-forest evolutionary relationships

Tendências da literatura científica sobre genética de populações de plantas do Cerrado

Plant Species Complexes as Models to Understand Speciation and Evolution: A Review of South American Studies

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