Figure 1
From: Common themes in nutrient acquisition by plant symbiotic microbes, described by the Gene Ontology
Parent and child terms of "GO: 0044403 symbiosis, encompassing mutualism through parasitism" displayed in the AmiGO browser [10]. "GO: 0044403 symbiosis, encompassing mutualism through parasitism" has several child terms that describe processes involved in nutrient exchange: "GO: 00051816 acquisition of nutrients from other organism during symbiotic interaction"; "GO: 0051817 modification of morphology or physiology of other organism during symbiotic interaction"; and "GO: 0009877 nodulation". These terms (highlighted by dark ovals), and selected child terms, can be seen in greater context in Figure 2. (Note that the numbers of gene products annotated to a given term, as typically displayed by AmiGO, have been removed for simplicity.)