Genetic Structure of PILEOLARIA PSEUDOMILITARIS (Polychaeta: Spirorbidae)

AUTOR(ES)

Beckwitt, Richard

RESUMO

The genetic structure of Pileolaria pseudomilitaris was studied by means of gene-diversity analysis of allozyme frequencies. At an esterase locus, most of the gene diversity was due to subdivision of the population into colonies and subpopulations separated by less than 100 meters. Gene frequencies at a phosphoglucose isomerase locus were similar over many kilometers, but differed between two habitat types. Differences between colonies are attributed to drift and founder effect; similarities over greater distances are attributed to similar selection pressures. A mathematical appendix details the method of gene diversity analysis for a multi-leveled, hierarchically subdivided population.

Documentos Relacionados

• Postlarval development of Nicolea uspiana (Polychaeta: Terebellidae)
• Feeding behavior of Scolelepis sp. (Polychaeta: Spionidae)
• Morphometric study of Phragmatopoma caudata (Polychaeta: Sabellida: Sabellariidae)
• Capítulo 17 - Monitoramento de populações de Scolelepis (polychaeta: spionidae)
• Contribuição ao conhecimento taxonômico dos poliquetas Sabelídeos (Polychaeta: Sabellidae) da região Sudeste do Brasil