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	Provedor de dados Genet. Mol. Biol. (2) Autor Lovato,Maria Bernadete (2) Ribeiro,Renata Acácio (2) Buzatti,Renata Santiago de Oliveira (1) Lemos Filho,José Pires de (1) Palavra-chave Atlantic Forest (1) Conservation genetics (1) Dalbergia nigra (1) Fine-scale spatial genetic structure (1) Isozymes (1) Mating systems (1) Neotropical tree (1) Senna multijuga (1) Sp statistic (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2012 (1) 2004 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Fine-scale spatial genetic structure of Dalbergia nigra (Fabaceae), a threatened and endemic tree of the Brazilian Atlantic Forest Genet. Mol. Biol. Buzatti,Renata Santiago de Oliveira; Ribeiro,Renata Acácio; Lemos Filho,José Pires de; Lovato,Maria Bernadete. The Atlantic Forest is one of the most diverse ecosystems in the world and considered a hotspot of biodiversity conservation. Dalbergia nigra (Fabaceae) is a tree endemic to the Brazilian Atlantic Forest, and has become threatened due to overexploitation of its valuable timber. In the present study, we analyzed the genetic diversity and fine-scale spatial genetic structure of D. nigra in an area of primary forest of a large reserve. All adult individuals (N = 112) were sampled in a 9.3 ha plot, and genotyped for microsatellite loci. Our results indicated high diversity with a mean of 8.6 alleles per locus, and expected heterozygosity equal to 0.74. The co-ancestry coefficients were significant for distances among trees up to 80 m. The Sp value was equal to... Tipo: Info:eu-repo/semantics/article Palavras-chave: Dalbergia nigra; Atlantic Forest; Conservation genetics; Fine-scale spatial genetic structure; Sp statistic. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000500019 Mating system in a neotropical tree species, Senna multijuga (Fabaceae) Genet. Mol. Biol. Ribeiro,Renata Acácio; Lovato,Maria Bernadete. Senna multijuga is a pioneer tropical tree species that occurs mainly in the Brazilian Atlantic forest. We investigated the mating system of two populations of S. multijuga, one located in a reserve area (RD1) and the other (RD2) about 15 km away. The mating system parameters were estimated using the mixed mating model (software MLTR). The two populations had significantly different outcrossing rates, with population RD2 having a high rate (t m = 0.838) and population RD1, a lower rate (t m = 0.540). The values of t s were different between the two populations and also lower than those of t m. Significant t m - t s estimates indicated that biparental inbreeding contributed to the apparent selfing rate in these populations. The correlation of paternity was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Isozymes; Mating systems; Neotropical tree; Senna multijuga. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000300018 Registros recuperados: 2 Primeira ... 1 ... Última

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