Genome-wide patterns of differentiation over space and time in the Queensland fruit fly.

ABSTRACT: The Queensland fruit fly, Bactrocera tryoni, is a major pest of Australian horticulture which has expanded its range in association with the spread of horticulture over the last ~ 150 years. Its distribution in northern Australia overlaps that of another fruit fly pest to which some authors accord full species status, Bactrocera aquilonis. We have used reduced representation genome-wide sequencing to genotype 359 individuals taken from 35 populations from across the current range of the two taxa, plus a further 73 individuals from six of those populations collected 15-22 years earlier. We find significant population differentiation along an east-west transect across northern Australia which likely reflects limited but bidirectional gene flow between the two taxa. The southward expansion of

SUBMITTER: Popa-Baez AD 

PROVIDER: S-EPMC7329829 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature