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Metapopulation structure of the specialized herbivore Macrosiphoniella tanacetaria (Homoptera, Aphididae) by Blandine Massonnet; Jean‐Christophe Simon; Wolfgang W. Weisser is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Metapopulation structure of the specialized herbivore Macrosiphoniella tanacetaria (Homoptera, Aphididae) about?

## Abstract We investigated population dynamics, genetic diversity and spatial structure in the aphid species __Macrosiphoniella tanacetaria__, a specialist herbivore feeding on tansy, __Tanacetum vulgare__. Tansy plants (genets) consist of many shoots (ramets), and genets are grouped in sites. Thus, aphids feeding on tansy can cluster at the level of ramets, genets and sites. We studied aphid population dynamics in 1997 and 2001 and found that within sites: (i) at any time, aphids used only a fraction of the available ramets and genets; (ii) at the level of ramets, most aphid colonies survived only one week; (iii) at the level of genets, mean survival time was less than 4 weeks; and (iv) colonization and extinction events occurred throughout the season. We sampled aphids in seven sites in the Alsace region, France (4–45 km apart) and two sites in Germany in 1999 to study genetic structure within and between populations. Genetic analyses using nine microsatellite loci showed that: (i) genotypic variability was high, (ii) none of the populations was in Hardy–Weinberg equilibrium, (iii) heterozygote deficits and linkage disequilibria were frequent, and (iv) all populations were genet

Who reads Metapopulation structure of the specialized herbivore Macrosiphoniella tanacetaria (Homoptera, Aphididae)?

Author

Blandine Massonnet; Jean‐Christophe Simon; Wolfgang W. Weisser

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley; Research Square (ISSN 0962-1083)

Published

2002

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)