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Genetic structure and diversity of native Guadua species (Poaceae: Bambusoideae) in natural populations of the Brazilian Amazon rainforest.
Silva, Susana M M; Martins, Karina; Costa, Frederico H S; Campos, Tatiana DE; Scherwinski-Pereira, Jonny E.
Afiliação
  • Silva SMM; Programa de Pós-Graduação em Biodiversidade e Biotecnologia/Rede Bionorte, Universidade Federal do Acre, Centro de Ciências Biológicas e da Natureza/CCBN, Rodovia BR 364, Km 04, Distrito Industrial, 69920-900 Rio Branco, AC, Brazil.
  • Martins K; Universidade Federal de São Carlos, Centro de Ciências Humanas e Biológicas, Departamento de Biologia, Rodovia João Leme dos Santos, Km 110 - SP-264, Itinga, 18052-780 Sorocaba, SP, Brazil.
  • Costa FHS; Universidade Federal do Acre, Centro de Ciências Biológicas e da Natureza/CCBN, Campus Universitário, Rodovia BR 364, Km 04, Distrito Industrial, 69920-900 Rio Branco, AC, Brazil.
  • Campos T; Embrapa Acre, Rodovia BR-364, Km 14 (Rio Branco/Porto Velho), 69900-970 Rio Branco, AC, Brazil.
  • Scherwinski-Pereira JE; Embrapa Recursos Genéticos e Biotecnologia, Av. W5 Norte (Final), PqEB, 70770-917 Brasília, DF, Brazil.
An Acad Bras Cienc ; 92(3): e20190083, 2020.
Article em En | MEDLINE | ID: mdl-33263658
The Southwestern Region of the Brazilian Amazon is formed by forests dominated by bamboos. The genus Guadua is endemic to the Americas, and little is known about the genetic diversity and structure of species of this genus. This study aimed to evaluate the genetic diversity and structure of two native Guadua species in natural populations in the Southwestern region of the Brazilian Amazon. Therefore, the genetic diversity and structure of Guadua aff. chaparensis and Guadua aff. lynnclarkiae were evaluated with the use of microsatellite molecular markers (SSR). It was verified that the average genetic diversity for the populations studied was considered high ( H ^ e =0.5) compared to other species of bamboo. All populations had rare and private alleles, and none of them presented significant values of inbreeding. The populations were divergent ( G ^ ST = 0.46), resulting in a low apparent gene flow. The Bayesian analysis showed that among the 350 individuals analyzed, five groups (K=5) were formed, with little similarity among the groups (Populations), although two of them presented clonal individuals. According to the results obtained, it can be conclude that populations should be treated as having unique characteristics, mainly when accessed for management and for in situ and ex situ conservation studies.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Floresta Úmida / Poaceae Tipo de estudo: Prognostic_studies Limite: Humans País/Região como assunto: America do sul / Brasil Idioma: En Revista: An Acad Bras Cienc Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Floresta Úmida / Poaceae Tipo de estudo: Prognostic_studies Limite: Humans País/Região como assunto: America do sul / Brasil Idioma: En Revista: An Acad Bras Cienc Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil