Data/hora: 08/06/2024 14:57:54

Provedor de dados: | 74
País: | Brazil
Título: | Populational genetic structure and sociogenetic structure of cocoon masses of Digelasinus diversipes (Kirby, 1882) (Hymenoptera: Symphyta: Argidae)
Autores: | Boraschi,Daniele; Del Lama,Marco Antonio.
Data: | 2004-01-01
Ano: | 2004
Palavras-chave: | Genetic variability; Population genetics; Digelasinus diversipes; Neotropical sawfly; Allozymes.
Resumo: | Gene variation and population genetic structure of the Neotropical sawfly Digelasinus diversipes were measured by allozyme analyses using starch gel electrophoresis. Cocoon masses were collected in Eugenia glazioviana (Myrtaceae) stems, in two areas of the "Estação Ecológica Jataí" (Luiz Antônio, SP, Brazil - 21°25' S, 47°50' W), in 2000 and 2001. The average heterozygosity observed in this species (Hobs = 0.094 ± 0.025) was not significantly different from other Symphyta groups; it was, however, significantly higher than in other Hymenoptera populations. No significant levels of inbreeding were found (F IS = 0.062; chi2 = 29.9; p &gt; 0.05), but the population was subdivided (F ST = 0.070; chi2 = 458.9; p &lt; 0.05), suggesting the absence of a significant gene flow among the samples studied, due to limited dispersion ability. The low relatedness coefficients found (ranging from 0.23 ± 0.09 to 0.44 ± 0.10) suggest that larvae from different ovipositions associate to construct the cocoon masses.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000300013
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572004000300013
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.27 n.3 2004
Fonte: | info:eu-repo/semantics/openAccess