The perpetuation of symbioses through host generations relies on symbiont transmission.
Horizontally transmitted symbionts are taken up from the environment anew by each host …

Insect heritable symbionts have proven to be ubiquitous, based on molecular screening of
various insect lineages. Recently, molecular and experimental approaches have yielded an …

Relaxation of selective strength, manifested as a reduction in the efficiency or intensity of
natural selection, can drive evolutionary innovation and presage lineage extinction or loss of …

Psyllids, whiteflies, aphids, and mealybugs are members of the suborder Sternorrhyncha
and share a common property, namely the utilization of plant sap as their food source. Each …

Although bacteria increase their DNA content through horizontal transfer and gene
duplication, their genomes remain small and, in particular, lack nonfunctional sequences …

Host-adapted bacteria include mutualists and pathogens of animals, plants and insects.
Their study is therefore important for biotechnology, biodiversity and human health. The …

Many insect species rely on intracellular bacterial symbionts for their viability and fecundity.
Large-scale DNA-sequence analyses are revealing the forces that shape the evolution of …

Insect Symbiosis summarizes the current knowledge of the relationship between symbiotic
organisms and their insect hosts and provides an unparalleled analysis of cutting-edge …

Many theories attempt to explain why sexual reproduction has invaded life so thoroughly.
Some are plausible, but there remains a need for evolutionary biologists to identify the main …

The profound effects of inbreeding and other non-recombining breeding systems on genetic
variability and molecular evolution are now beginning to be understood. Theoretical models …