Data/hora: 09/06/2024 09:22:42

Biblioteca(s): | Embrapa Pecuária Sudeste.
Data corrente: | 11/12/2018
Data da última atualização: | 11/12/2018
Autoria: | VIANA, J. P. G.; SIQUEIRA, M. V. B. M.; ARAUJO, F. L.; GRANDO, C.; SUJII, P. S.; SILVESTRE, E. de A.; NOVELLO, M.; PINHEIRO, J. B.; CAVALLARI, M. M.; BRANCALION, P. H. S.; RODRIGUES, R. R.; SOUZA, A. P. de; CATCHEN, J.; ZUCCHI, M. I.
Afiliação: | João Paulo Gomes Viana, UNICAMP; Marcos Vinicius Bohrer Monteiro Siqueira, Universidade do Sagrado Coração; Fabiano Lucas Araujo, Instituto Agronômico de Campinas; Carolina Grando, UNICAMP; Patricia Sanae Sujii, UNICAMP; Ellida de Aguiar Silvestre, UNICAMP; Mariana Novello, UNICAMP; José Baldin Pinheiro, USP; MARCELO MATTOS CAVALLARI, CPPSE; Pedro H. S. Brancalion, USP; Ricardo Ribeiro Rodrigues, USP; Anete Pereira de Souza, USP; Julian Catchen, University of Illinois; Maria I. Zucchi, Agência Paulista de Tecnologia dos Agronegócios.
Título: | Genomic diversity is similar between Atlantic Forest restorations and natural remnants for the native tree Casearia sylvestris Sw.
Ano de publicação: | 2018
Fonte/Imprenta: | Plos One, v. 13, n. 3, e0192165, p. 1-14, 2018.
DOI: | 10.1371/journal.pone.0192165
Idioma: | Inglês
Conteúdo: | The primary focus of tropical forest restoration has been the recovery of forest structure and tree taxonomic diversity, with limited attention given to genetic conservation. Populations reintroduced through restoration plantings may have low genetic diversity and be genetically structured due to founder effects and genetic drift, which limit the potential of restoration to recover ecologically resilient plant communities. Here, we studied the genetic diversity, genetic structure and differentiation using single nucleotide polymorphisms (SNP) markers between restored and natural populations of the native tree Casearia sylvestris in the Atlantic Forest of Brazil. We sampled leaves from approximately 24 adult individuals in each of the study sites: two restoration plantations (27 and 62 years old) and two forest remnants. We prepared and sequenced a genotyping-by-sequencing library, SNP markers were identified de novo using Stacks pipeline, and genetic parameters and structure analyses were then estimated for populations. The sequencing step was successful for 80 sampled individuals. Neutral genetic diversity was similar among restored and natural populations (AR = 1.72 ± 0.005; HO = 0.135 ± 0.005; HE = 0.167 ± 0.005; FIS = 0.16 ± 0.022), which were not genetically structured by population subdivision. In spite of this absence of genetic structure by population we found genetic structure within populations but even so there is not spatial genetic structure in any population studied. Less than 1% of the neutral alleles were exclusive to a population. In general, contrary to our expectations, restoration plantations were then effective for conserving tree genetic diversity in human-modified tropical landscapes. Furthermore, we demonstrate that genotyping-by-sequencing can be a useful tool in restoration genetics.
Palavras-Chave: | Single nucleotide polymorphisms; SNP.
Thesagro: | Casearia Sylvestris; Floresta Tropical.
Thesaurus Nal: | Tropical forests.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/188147/1/GenomicDiversity.pdf
Registro original: | Embrapa Pecuária Sudeste (CPPSE)
Exemplares: | CPPSE - (24649-1) - UPC - AP - DD - PROCI-2018.00189 - VIA - 2018.00197 - DIS