Data from: Intrinsic differences between males and females determine sex-specific consequences of inbreeding
| Main Authors: | Ebel, Emily R., Phillips, Patrick C. |
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| Format: | info dataset Journal |
| Terbitan: |
, 2016
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/4933575 |
Daftar Isi:
- Background Inbreeding increases homozygosity and exposes deleterious recessive alleles, generally decreasing the fitness of inbred individuals. Interestingly, males and females are usually affected differently by inbreeding, though the more vulnerable sex depends on the species and trait measured. Results We used the soil-dwelling nematode Caenorhabditis remanei to examine sex-specific inbreeding depression across nine lineages, five levels of inbreeding, and hundreds of thousands of progeny. Female nematodes consistently suffered greater fitness losses than their male counterparts, especially at high levels of inbreeding. Conclusions These results suggest that females experience stronger selection on genes contributing to reproductive traits. Inbreeding depression in males may be further reduced by sex chromosome hemizygosity, which affects the dominance of some mutations, as well as by the absence of sexual selection. Determining the relative contributions of sex-specific expression, genes on the sex chromosomes, and the environment they are filtered through—including opportunities for sexual selection—may explain the frequent though inconsistent records of sex differences in inbreeding depression, along with their implications for conservation and the evolution of mating systems.
- Sex-specific inbreeding on offspring numberData is provided for male and female offspring production for different levels of inbreeding for nine different independently derived lineages. Columns give the sex of the focal individual (mated with an outbred control), the family/lineage ID, the level of inbreeding (F), the total number of offspring produced over an individuals lifespan, and the log transformation of offspring number.Ebel_offspring.xlsSex specific inbreeding on offspring production per dayData is provided for male and female offspring production for different levels of inbreeding for nine different independently derived lineages. Columns give the sex of the focal individual (mated with an outbred control), the family/lineage ID, the level of inbreeding (F), and columns for the day-specific offspring production for each individual.Ebel_offspringperday.xlsSex-specific inbreeding on egg survivorship/hatchingData is provided for male and female specific survivorship of eggs for different levels of inbreeding for nine different independently derived lineages. Columns give the sex of the focal individual (mated with an outbred control), the family/lineage ID, the level of inbreeding (F), the total number of eggs that were alive versus dead for a given replicate individual.Ebel_survivorship.xlsEffects of inbreeding on male mating successData is provided for male mating success across different levels of inbreeding for nine different independently derived lineages. Columns give the family/lineage ID, the level of inbreeding (F), mating rate of the focal male (in females per hour), and the log of the mating rate.Ebel_mating.xls