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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Genetic diversity of turmeric germplasm (Curcuma longa; Zingiberaceae) identified by microsatellite markers

Texto completo
Autor(es):
Sigrist, M. S. [1] ; Pinheiro, J. B. [1] ; Azevedo Filho, J. A. [2] ; Zucchi, M. I. [3]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Sao Paulo ESALQ, Dept Genet, Piracicaba, SP - Brazil
[2] Polo APTA, Reg Leste Paulista, Monte Alegre Do Sul, SP - Brazil
[3] Agencia Paulista Tecnol Agronegocios, Piracicaba, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Genetics and Molecular Research; v. 10, n. 1, p. 419-428, 2011.
Citações Web of Science: 12
Resumo

Turmeric (Curcuma longa) is a triploid, vegetatively propagated crop introduced early during the colonization of Brazil. Turmeric rhizomes are ground into a powder used as a natural dye in the food industry, although recent research suggests a greater potential for the development of drugs and cosmetics. In Brazil, little is known about the genetic variability available for crop improvement. We examined the genetic diversity among turmeric accessions from a Brazilian germplasm collection comprising 39 accessions collected from the States of Goias, Mato Grosso do Sul, Minas Gerais, Sao Paulo, and Para. For comparison, 18 additional genotypes were analyzed, including samples from India and Puerto Rico. Total DNA was extracted from lyophilized leaf tissue and genetic analysis was performed using 17 microsatellite markers (single-sequence repeats). Shannon-Weiner indexes ranged from 0.017 (Minas Gerais) to 0.316 (Sao Paulo). Analyses of molecular variance (AMOVA) demonstrated major differences between countries (63.4%) and that most of the genetic diversity in Brazil is found within states (75.3%). Genotypes from Sao Paulo State were the most divergent and potentially useful for crop improvement. Structure analysis indicated two main groups of accessions. These results can help target future collecting efforts for introduction of new materials needed to develop more productive and better adapted cultivars. (AU)

Processo FAPESP: 07/02895-4 - Caracterização e avaliação de germoplasma de açafrão (Curcuma longa L.) utilizando marcadores morfométricos e microssatélites
Beneficiário:Maria Imaculada Zucchi
Linha de fomento: Auxílio à Pesquisa - Regular