ArticlePloS one2015
Quantitative Genetics of the Aging of Reproductive Traits in the Houbara Bustard.
Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed, 12 citations in OpenAlex.
- Selection and genetic variation in age-related plasticity drive the erosion of among-individual behavioural correlations in later life.Heredity · 2026Article
- Heritability and age-dependent changes in genetic variation of telomere length in a wild house sparrow population.Evolution letters · 2025Article
- Polyandrous females but not monogamous females vary in reproductive ageing patterns in the bean bug Riptortus pedestris.BMC ecology and evolution · 2022Article
- Reproductive performance in houbara bustard is affected by the combined effects of age, inbreeding and number of generations in captivity.Scientific reports · 2021Article
- Food availability affects adult survival trajectories depending on early developmental conditions.Proceedings. Biological sciences · 2017Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Do all traits within an organism age for the same reason? Evolutionary theories of aging share a common assumption: the strength of natural selection declines with age. A corollary is that additive genetic variance should increase with age. However, not all senescent traits display such increases suggesting that other mechanisms may be at play. Using longitudinal data collected from more than 5400 houbara bustards (Chlamydotis undulata) with an exhaustive recorded pedigree, we investigated the genetics of aging in one female reproductive trait (egg production) and three male reproductive traits (courtship display rate, ejaculate size and sperm viability), that display senescence at the phenotypic level. Animal models revealed an increase in additive genetic variance with age for courtship display rate and egg production but an unexpected absence of increased additive genetic variance for ejaculate size and no additive genetic variance for sperm viability. Our results suggest that the mechanisms behind the senescence of some traits are linked with a change in genetic expression, whereas for some other traits, aging may result from the constraints associated with physiological wear and tear on the organism throughout the life of the individual.
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Registered trials
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