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Molecular Ecology · 2009 · Vol. 18 · Issue 14 · Wiley
In aphids, reproductive mode is generally assumed to be selected for by winter climate. Sexual lineages produce frost‐resistant eggs, conferring an advantage in regions with cold winters, while asexual lineages predominate in regions with mild winters. However, habitat and resource heterogeneities are known to exert a strong influence on sex maintenance and might modulate the effect of climate on aphid reproductive strategies....
Molecular Ecology · 1999 · Vol. 8 · Issue 4 · Wiley
As French populations of the aphid Sitobion avenae exhibit a range of reproductive modes, this species provides a good opportunity for studying the evolution of breeding system variation. The present analysis combined ecological and genetic investigations into the spatial distribution of variation in reproductive mode. Reproductive mode was characterized in 277 lineages of S. avenae from France, and these aphids were scored fo...