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Molecular characterization of Platonia insignis Mart. ("Bacurizeiro") using inter simple sequence repeat (ISSR) markers.
MedLine Citation:
PMID:  23275206     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Platonia insignis Mart. (Clusiaceae) is widespread throughout the Amazon and adjacent areas. The fruits (known locally as "bacuri") have significant commercial potential, but the species is under threat from agro-industrial expansion. The genetic variability within 72 genotypes of P. insignis belonging to ten populations collected in the Brazilian states of Maranhão and Piauí, and maintained in the germplasm collection of Embrapa Meio-Norte, has been determined, and the organization of genetic diversity within populations, between populations and among geographic groups verified. Eighteen selected inter simple sequence repeat primers allowed amplification of 236 loci of which 221 (93.64 %) were polymorphic, indicating a high level of genetic diversity. At the population level, the Shannon and Nei diversity indices ranged from 0.082 to 0.323 and from 0.120 to 0.480, respectively. The global coefficient of genetic differentiation (G ( ST )) was 0.4730 indicating that differentiation between populations was significant, a finding that was confirmed by analysis of molecular variance (Φ ( ST ) = 0.28). UPGMA cluster analysis revealed that the genotypes could be stratified into groups that were well defined and consistent with those identified in the dendrogram constructed using pair wise Φ ( ST ) values. The high genetic diversity established in this study may facilitate the management and conservation of the germplasm of P. insignis.
Authors:
I G B Souza; V A B Souza; P S C Lima
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-30
Journal Detail:
Title:  Molecular biology reports     Volume:  -     ISSN:  1573-4978     ISO Abbreviation:  Mol. Biol. Rep.     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0403234     Medline TA:  Mol Biol Rep     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Programa de Pós-graduação em Genética e Melhoramento, Universidade Federal do Piauí, Campus Agrícola da Socopo, Teresina, PI, 64049-550, Brazil, isisgomesmd@hotmail.com.
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