Species that are dispersed across oceanic islands can have strong population structures due to genetic isolation. As an example, the mango fruit fly, Bactrocera frauenfeldi, is currently considered to be one of several similar members in a species group, including three major pests, distributed across Southeast Asia, Australasia, and Oceania. In a study published in Systematic Entomology, researchers used phylogenomics—the intersection of the fields of evolution and genomics—to evaluate the relationships among species in the B. frauenfeldi species complex and two closely related species.
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Source: Phys.org