Population differences and domestication effects on mating and remating frequencies in Queensland fruit fly

被引:7
作者
Ahmed, Khandaker Asif [1 ,2 ]
Yeap, Heng Lin [2 ]
Pandey, Gunjan [2 ]
Lee, Siu Fai [1 ,2 ]
Taylor, Phillip W. [1 ]
Oakeshott, John G. [1 ,2 ]
机构
[1] Macquarie Univ, Appl BioSci, Macquarie Pk, NSW 2109, Australia
[2] CSIRO Land & Water, Black Mountain, ACT 2601, Australia
关键词
ACCESSORY-GLAND SUBSTANCES; BACTROCERA-TRYONI FROGGATT; DROSOPHILA-MELANOGASTER; SEX-PEPTIDE; DIPTERA TEPHRITIDAE; REPRODUCTIVE-BEHAVIOR; FEMALE RECEPTIVITY; NATURAL-POPULATION; GENETIC-VARIATION; FLIES;
D O I
10.1038/s41598-021-04198-4
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Females of many insect species are unreceptive to remating for a period following their first mating. This inhibitory effect may be mediated by either the female or her first mate, or both, and often reflects the complex interplay of reproductive strategies between the sexes. Natural variation in remating inhibition and how this phenotype responds to captive breeding are largely unexplored in insects, including many pest species. We investigated genetic variation in remating propensity in the Queensland fruit fly, Bactrocera tryoni, using strains differing in source locality and degree of domestication. We found up to threefold inherited variation between strains from different localities in the level of intra-strain remating inhibition. The level of inhibition also declined significantly during domestication, which implied the existence of genetic variation for this trait within the starting populations as well. Inter-strain mating and remating trials showed that the strain differences were mainly due to the genotypes of the female and, to a lesser extent, the second male, with little effect of the initial male genotype. Implications for our understanding of fruit fly reproductive biology and population genetics and the design of Sterile Insect Technique pest management programs are discussed.
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页数:14
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