Data: Female-limited responses in remating rate and mating duration in the experimental evolution of a beetle Callosobruchus chinensis
Data files
Sep 22, 2023 version files 64.59 KB
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fem.surv.csv
987 B
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first.mating.csv
30.14 KB
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first.mating.duration.csv
1.92 KB
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README.md
3.01 KB
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second.mating.csv
28.53 KB
Abstract
Mating rate optima often differ between the sexes: males may increase their fitness by multiple mating, but for females, multiple mating confers little benefit and can often be costly (especially in taxa without nuptial gifts or mala parental care). Sexually antagonistic evolution is thus expected in traits related to mating rates under sexual selection. This prediction has been tested by multiple studies that applied the experimental evolution technique, which is a powerful tool to directly examine the evolutionary consequences of selection. Yet, the results so far only partly support the prediction. Here we provide another example of experimental evolution of sexual selection, by applying it for the first time to the mating behavior of a seed beetle Callsorobruchus chinensis. We found a lower remating rate in polygamy-line females than in monogamy-line (i.e. no sexual selection) females after 21 generations of selection. Polygamy-line females also showed a longer duration of first mating than monogamy-line females. We found no effect of male evolutionary lines on the remating rate or first mating duration. Though not consistent with the original prediction, the current and previous studies collectively suggest that the observed female-limited responses may be a norm, which is also consistent with the conceptual advances in the last two decades of the advantages and limitations of the experimental evolution technique.
README: The data underlying "Female-limited responses in remating rate and mating duration in the experimental evolution of a beetle Callosobruchus chinensis"
This dataset is of mating behaviours of a seed beetle, Callosobruchus chinensis. The experimental evolution of sexual selection (three lines of forced monogamy vs. three lines of polygamy) was performed for 21 generations (with some intervening generations with the middle-class-neighbourhood design; see Kyogoku & Sota 2020 J Evol Biol 34, 501-511, DOI:10.1111/jeb.13753 for details). After common garden rearing, the beetles were subjected to mating trials. There are four CSV files.
Description of the Data and file structure
- first.mating.csv Virgin females from the evolutionary lines were allowed to mate with a male (first mating). Column annotations are: fir.mating.date; Date (in 2016) fem.trtmt; Female's evolutionary line treatment (monogamy vs. polygamy) fem.line; Female's evolutionary line (1-3: monogamy, 3-6: polygamy) male.trtmt; Male's evolutionary line treatment (monogamy vs. polygamy) male.line; Male's evolutionary line (1-3: monogamy, 3-6: polygamy) hour; Observation time in a day (hour) min; Observation time in a day (minute) temp; Room temperature during the observation (C) mating; Occurrence of mating (1: mated, 0: not mated)
- second.mating.csv Three days after the first mating, the females were given the opportunity of second mating (second mating). Column annotations are: fir.mating.date; Date of first mating (in 2016) sec.mating.date; Date of second mating (in 2016) fem.trtmt; Female's evolutionary line treatment (monogamy vs. polygamy) fem.line; Female's evolutionary line (1-3: monogamy, 3-6: polygamy) fir.male.trtmt; First-male's evolutionary line treatment (monogamy vs. polygamy) fir.male.line; First-male's evolutionary line (1-3: monogamy, 3-6: polygamy) hour; Observation time in a day (hour) min; Observation time in a day (minute) temp; Room temperature during the observation (C) remating; Occurrence of mating (1: mated, 0: not mated)
- fem.surv.csv Survival from the first to the second mating of the females. Column annotations are: fir.mating.date; Date of first mating (in 2016) fem.trtmt; Female's evolutionary line treatment (monogamy vs. polygamy) fem.line; Female's evolutionary line (1-3: monogamy, 3-6: polygamy) male.trtmt; First-male's evolutionary line treatment (monogamy vs. polygamy) male.line; First-male's evolutionary line (1-3: monogamy, 3-6: polygamy) n; The number of once-mated females surv; The number of females that survived until second mating trial
- first.mating.duration A follow-up experiment, where the duration of first mating was observed for the evolutionary line beetles. Column annotations are: male; Male's evolutionary line female; Female's evolutionary line time; Duration of mating (in sec)
Methods
After the experimental evolution of sexual selection (forced monogamy vs. polygamy), remating rates are examined on a seed beetle, Callosobruchus chinensis. In addition, the mating duration of the first mating was observed for the evolutionary line beetles.