High levels of genetic differentiation and selfing in the Brazilian cerrado fruit tree Dipteryx alata Vog. (Fabaceae)

Tarazi, Roberto; Moreno, Marlene Aparecida; Gandara, Flávio Bertin; Ferraz, Elza Martins; Moraes, Mário Luiz Teixeira de; Vinson, C. C.; Ciampi, A. Y.; Vencovsky, Roland; Kageyama, Paulo Yoshio

doi:10.1590/s1415-47572010005000007

Cited by 23 publications

(35 citation statements)

References 31 publications

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“…Numerous studies on the genetic conservation of native Cerrado plant species have been carried out, analyzing these populations using microsatellite molecular markers (Zucchi et al, 2003;Moura et al, 2009;Collevatti et al, 2010;Tarazi et al, 2010). This technique is widely used because it is codominant, highly polymorphic and informative (Tautz, 1989;Guichoux et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Research Article Structure and genetic diversity of Anacardium humile (Anacardiaceae): a tropical shrub.

Cota¹,

Moreira²,

Brandão³

et al. 2017

Genet. Mol. Res.

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ABSTRACT. Anacardium humile Saint Hilaire is a tropical shrub native to the Cerrado biome. It is a fruiting species with biological, medicinal, and socioeconomic significance. Thus, knowing how the genetic variability of natural populations is organized allows for the establishment of strategies for conservation and the sustainable use of the species and its biome. Six microsatellite loci previously developed from Anacardium occidentale were used to investigate the spatial genetic structure and genetic diversity of eight natural A. humile populations based on analyses of 242 adult plants. The results obtained indicate that these populations show a high level of genetic diversity (expected heterozygosity = 0.710). The endogamy coefficient was positive and significant for most populations, with a mean of 0.142 (P = 0.001). The genetic differentiation between populations was low (θ = 0.075 and G ST = 0.066) but significant (P = 0.0001). The genotypes of five of the eight populations were non-randomly distributed with clusters of related plants for which the coancestry values were positive and significant. These populations exhibited high and significant endogamy indices. The results obtained for A. humile populations show that genetic conservation programs should be implemented to maintain this species.

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Section: Introductionmentioning

confidence: 99%

Research Article Structure and genetic diversity of Anacardium humile (Anacardiaceae): a tropical shrub.

Cota¹,

Moreira²,

Brandão³

et al. 2017

Genet. Mol. Res.

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“…In the last decade, several studies have evaluated the genetic structure in Cerrado plant species (Zucchi et al, 2003;Soares et al, 2008;Moreno et al, 2009;Collevatti et al, 2001Collevatti et al, , 2010Telles et al, 2003Telles et al, , 2010Tarazi et al, 2010;Martins et al, 2006Martins et al, , 2011Moura et al, 2009Moura et al, , 2011Moraes and Sebbenn, 2011). Most of them addressed the genetic diversity and population differentiation, aiming to determine the conservation status of natural populations, which would then make it possible to infer historical events related to anthropogenic disturbance, gene flow between populations and the effect of ecosystem fragmentation.…”

Section: Introductionmentioning

confidence: 99%

Genetic structure in fragmented populations of Solanum lycocarpum A. St.-Hil. with distinct anthropogenic histories in a Cerrado region of Brazil

Moura¹,

Martins²,

Sujii³

et al. 2012

Genet. Mol. Res.

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ABSTRACT. Solanum lycocarpum is a woody tree widely distributed in the Cerrado that reaches high population densities in disturbed environments. We examined the genetic diversity and population differentiation of six S. lycocarpum populations with different degrees of human disturbance in order to determine if they are negatively affected by anthropogenic activity. Three populations located in southern and three located in southeastern regions of Goiás State, Central Brazil, were genotyped with five microsatellite markers. The population located in a protected area had higher number of alleles (26) 2674-2682 (2012) Negative effect of the ecosystem fragmentation 2675 alleles). It indicates that extensive and continuous areas of preserved native vegetation contribute positively to the conservation of genetic diversity, even with S. lycocarpum that easily adapts to disturbed environments. The three southeastern populations, although fragmented, had preserved native vegetation and were not significantly different from each other (θp = 0.002).All other population pairs compared were significantly divergent (θp varied from 0.03 to 0.11 between pairs, P < 0.05). We found three distinct sets of allele frequencies. The three southeastern populations shared similar gene pools, as well as the two disturbed southern populations, which are secondary vegetation. The southern population located in protected area had the most dissimilar gene pool. In conclusion, populations showing a higher degree of human disturbance tends to show a larger population differentiation than expected from the isolation by distance model, which in the current scenario of the Cerrado destruction points out to a threat to the long-term conservation of the species.

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“…Souza et al 2012 Dipteryx alata Vogel. Tarazi et al 2010 Cruz et al 2012Qualea grandiflora Mart. Ritter et al 2012, Buzzati et al 2014Solanum crinitum Lam.…”

Section: Discussionunclassified

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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High levels of genetic differentiation and selfing in the Brazilian cerrado fruit tree Dipteryx alata Vog. (Fabaceae)

Cited by 23 publications

References 31 publications

Research Article Structure and genetic diversity of Anacardium humile (Anacardiaceae): a tropical shrub.

Research Article Structure and genetic diversity of Anacardium humile (Anacardiaceae): a tropical shrub.

Genetic structure in fragmented populations of Solanum lycocarpum A. St.-Hil. with distinct anthropogenic histories in a Cerrado region of Brazil

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

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