Circadian rhythm and time of mating in Bactrocera cucurbitae (Diptera: Tephritidae) selected for age at reproduction

Heredity
Takahisa Miyatake

Abstract

Chrono-biological traits were changed by selecting for life-history traits via a genetic linkage controlling both time-related behavioural and life-history traits. Behavioural traits were compared between lines selected for young (Y-lines) and old (O-lines) age at reproduction in the melon fly, Bactrocera cucurbitae (Coquillett). Adults from O-lines, which survive longer than flies from Y-lines, mated later in the day and had a longer period of circadian rhythm in the locomotor activity than those from Y-lines. Flies from F(1) reciprocal crosses had an intermediate time of mating and periods of circadian rhythm between that of the parents, indicating a genetic basis to these traits. The presence of these behavioural differences across the selection lines indicates that chrono-biological traits exhibit correlated responses to selection on age at reproduction. The correlated responses in the behavioural traits to selection for life-history traits are discussed from two points of view: pleiotropy and inadvertent selection.

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Citations

Nov 9, 2012·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Pankaj Yadav, Vijay Kumar Sharma
Jul 28, 2004·Proceedings of the National Academy of Sciences of the United States of America·Gro V AmdamRobert E Page
Mar 11, 2011·Annals of the New York Academy of Sciences·Liesbet TemmermanLiliane Schoofs
Mar 5, 2013·Chronobiology International·Koustubh M Vaze, Vijay Kumar Sharma
Nov 1, 2016·Evolution; International Journal of Organic Evolution·Marco T TejedaFrancisco Díaz-Fleischer

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