2001
DOI: 10.1046/j.1365-294x.2001.01264.x
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Abstract: Plathymenia reticulata is a tropical tree native to the Brazilian Cerrado, one of the most important and endangered ecosystems in Brazil. This species presents high-quality wood and potential for recovery of degraded areas. Despite its importance, almost nothing is known about its genetic or ecological features. Random amplified polymorphic DNA (RAPD) markers were used to investigate the genetic diversity and structure of six natural populations of P. reticulata. DNAs from 117 adult individuals were amplified … Show more

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Cited by 90 publications
(85 citation statements)
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“…An approximate mean number of migrants per generation (Nm) was calculated through the expression: Nm = 0.25(1/F ST -1) (Wright, 1951), in which F ST was substituted by its analog φ ST (Lacerda et al, 2001), which means the proportion of molecular variability among populations. In this expression, N is the populational size, and m is the proportion of migrants per generation.…”
Section: Methodsmentioning
confidence: 99%
“…An approximate mean number of migrants per generation (Nm) was calculated through the expression: Nm = 0.25(1/F ST -1) (Wright, 1951), in which F ST was substituted by its analog φ ST (Lacerda et al, 2001), which means the proportion of molecular variability among populations. In this expression, N is the populational size, and m is the proportion of migrants per generation.…”
Section: Methodsmentioning
confidence: 99%
“…Fisher's exact test (Raymond & Rousset, 1995) was used to detect disequilibria in the band frequencies among populations, using tFPga software (miller, 1997) and selecting the corrections options for RaPD bands (lynch & milligan 1994). the distribution of genetic diversity within and among populations was tested by analysis of molecular variance (amova) using arlequim 2.0 (Schneider et al, 2000), which is appropriate for RaPD diversity analyses (excoffier et al, 1992;Huff et al, 1993;Stewart & excoffier, 1996;lacerda et al, 2001). nei's diversity index (nei, 1973) was calculated in PoPgene, and correlated to the number of trees (Pearson´s correlation, p < 0.005) in order to verify any bias caused by number of trees sampled from different populations (37 in manaus and 24 in the other populations).…”
Section: Genetic and Statistic Analysismentioning
confidence: 99%
“…A caracterização constitui uma das principais etapas dos trabalhos com germoplasma, pois permite indicar plantas com potencial de uso imediato, bem como identificar genótipos que apresentem características interessantes para o melhoramento, além de ser fundamental para o estabelecimento de formas de exploração econômica e racional (LACERDA et al, 2001). Sem o conhecimento das características agronômicas, morfológicas e citogenéticas, não é possível manipular adequadamente a variabilidade genética observada (MELETTI et al, 1992) A caracterização morfológica consiste na aferição de caracteres botânicos herdáveis, facilmente visíveis e mensuráveis que, a princípio, podem ser expressos em todos os ambientes.…”
Section: Introductionunclassified