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Genetic diversity in natural populations of Hancornia speciosa Gomes: Implications for conservation of genetic resources
Provedor de dados: Ciência e Agrotecnologia
Autores: Fajardo,Cristiane Gouvêa; Costa,Daniel Ferreira da; Chagas,Kyvia Pontes Teixeira das; Vieira,Fábio de Almeida.
ABSTRACT The continuing fragmentation of forests has been a threat to the maintenance of genetic resources. Genetic diversity is fundamental to the survival of species in natural environments in the long term, as well as being the basis for genetic improvement. The objective of this study was to evaluate the genetic diversity in natural populations of Hancornia speciosa and to contribute to the development of conservation strategies. We sampled 105 individuals of H. speciosa, distributed in seven populations. The ISSR (Inter-Simple Sequence Repeat) markers provided 70 loci, of which 81% were polymorphic. The mean genetic diversity of Nei (h) was 0.19, and the Shannon index (I) was 0.27. The h and I diversity indices ranged respectively from 0.16 to 0.24 in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apocynaceae; Genetic structure; Genetic bottleneck; ISSR; Mangabeira.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000600623