Biology and Ecology of Aphids
Most people know of aphids as garden pests, infesting the soft green tissues of plants in vast numbers and killing them by sucking out the sap. Indeed, among the 4000 or so known species of aphids about 250 are pests, and in temperate regions several are economically important agricultural pests that damage crops directly during feeding or act as vectors for plant pathogens. But aphids are also important model organisms in evolutionary biology and ecology because they combine a number of unique features such as complex life cycles involving the development of morphological distinct phenotypes (polyphenism), sexual and asexual reproduction strategies and changes of host plants.
Aphids can also be regarded as holobionts because they are colonized by obligate and facultative microbes which enable them to feed exclusively on phloem sap and influence their resistance against pathogens, parasitoids or environmental stress. This book combines fundamental information about aphids with chapters addressing state-of-the-art research in topics such as aphid-related phylogeny, genome biology, epigenetics and chemical ecology.
Phylogeny of the Aphids. The Ontogenesis of the Pea Aphid Acyrthosiphon pisum. Functional and Evolutionary Genomics in Aphids. Epigenetic Control of Polyphenism in Aphids. Bacterial Symbionts of Aphids (Hemiptera: Aphididae). Aphid Immunity. Aphid Molecular Stress Biology. The Effect of Plant Within-Species Variation on Aphid Ecology. Chemical Ecology of Aphids (Hemiptera: Aphididae). Aphid Honeydew: Rubbish or Signaler. Function of Aphid Saliva in Aphid-Plant Interaction. Biotechnological Approaches to Aphid Management. Aphid Techniques.