Complex evolution in Aphis gossypii group (Hemiptera: Aphididae), evidence of primary host shift and hybridization between sympatric species.

Abstract excerpt

Aphids provide a good model system to understand the ecological speciation concept, since the majority of the species are host-specific, and they spend their entire lifecycle on certain groups of host plants. Aphid species that apparently have wide host plant ranges have often turned out to be complexes of host-specialized biotypes. Here we investigated the various host-associated populations of the two recently...

Topics

• Animals
• Aphids
• Bayes Theorem
• DNA, Mitochondrial
• Evolution, Molecular
• Genetic Loci
• Genetic Variation
• Haplotypes
• Host-Pathogen Interactions
• Hybridization, Genetic
• Microsatellite Repeats