Variabilidade genética intrapopulacional em Myracrodruon urundeuva Fr. All. por marcador AFLP

Autor: Freitas, Miguel Luiz Menezes, De Andrade Aukar, Ana Paula [UNESP], Sebbenn, Alexandre Magno, De Moraes, Mario Luiz Teixeira [UNESP], Lemos, Eliana Gertrudes Macedo [UNESP]
Přispěvatelé: Instituto Florestal do Estado de São Paulo, Universidade Estadual Paulista (Unesp)
Jazyk: portugalština
Rok vydání: 2005
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Zdroj: Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Popis: Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:21:35Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:45:32Z : No. of bitstreams: 1 2-s2.0-31444452756.pdf: 543131 bytes, checksum: 28950827a3198edcefae44d22f08e86e (MD5) Made available in DSpace on 2014-05-27T11:21:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-08-01 Levels of genetic variability for in situ and ex situ genetic conservation were estimated in a population of Myracrodruon urundeuva using the PCR (polymerase chain reaction) technique with the AFLP (Amplified fragment-length polymorphism) genetic marker. Seeds for progeny tests were collected from 30 open-pollination trees (matrices) at Paulo de Faria Ecological Station - SP. From this genetic material, three progeny tests were installed on the Teaching and Research Farm of Ilha Solteira Faculty of Engineering - University of São Paulo State (UNESP), which is located in Selvlria - MS, Brazil. The analysis by genetic marker was conducted with three combinations of different starters EcoRl-Msel, resulting in a total number of 137 polymorphic bands, thus forming a table of binary data. These data were used for the analysis of genetic divergence and distance between progenies. High levels of genetic divergence were observed among families. Based on the Analysis of Molecular Variance (AMOVA), it was shown that 16.2% of genetic diversity is found among progenies and 83.8% within progenies, which suggests deviances of random matings. The grouping of progenies, based on genetic distances, suggests that progenies deriving from trees which are close to each other tend to be more similar. This, in turn, indicates that the population originating the seeds may be genetically structured. Instituto Florestal do Estado de São Paulo, Caixa Postal 1322, São Paulo, SP - 01059-970 Departamento de Tecnologia FCAV UNESP, Via de Acesso Prof. Paulo D.C., s/n, Jaboticabal, SP - 14884-900 Departamento de Fitotecnia FEIS UNESP, Av. Brasil Centro, 56, Una Solteira, SP - 14870-000 Departamento de Tecnologia FCAV UNESP, Via de Acesso Prof. Paulo D.C., s/n, Jaboticabal, SP - 14884-900 Departamento de Fitotecnia FEIS UNESP, Av. Brasil Centro, 56, Una Solteira, SP - 14870-000
Databáze: OpenAIRE
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