Effects of laboratory colonization on Bactrocera dorsalis (Diptera, Tephritidae) mating behaviour: 'what a difference a year makes'

ZooKeys
M K SchutzeA R Clarke

Abstract

Laboratory-reared insects are widely known to have significantly reduced genetic diversity in comparison to wild populations; however, subtle behavioural changes between laboratory-adapted and wild or 'wildish' (i.e., within one or very few generations of field collected material) populations are less well understood. Quantifying alterations in behaviour, particularly sexual, in laboratory-adapted insects is important for mass-reared insects for use in pest management strategies, especially those that have a sterile insect technique component. We report subtle changes in sexual behaviour between 'wildish' Bactrocera dorsalis flies (F1 and F2) from central and southern Thailand and the same colonies 12 months later when at six generations from wild. Mating compatibility tests were undertaken under standardised semi-natural conditions, with number of homo/heterotypic couples and mating location in field cages analysed via compatibility indices. Central and southern populations of Bactrocera dorsalis displayed positive assortative mating in the 2010 trials but mated randomly in the 2011 trials. 'Wildish' southern Thailand males mated significantly earlier than central Thailand males in 2010; this difference was considerably reduce...Continue Reading

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Citations

Jan 23, 2016·ZooKeys·Jorge HendrichsAnthony R Clarke
Mar 6, 2018·Journal of Economic Entomology·Ary A Hoffmann, Perran A Ross
Sep 24, 2020·Insect Science·Jeanneth PérezPhillip W Taylor
Oct 13, 2020·Frontiers in Microbiology·Rajib MajumderToni A Chapman
Sep 21, 2021·Bulletin of Entomological Research·Mayren Sánchez-RosarioPablo Liedo

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