Environment and sex control lifespan and telomere length in wild-derived African killifish
Reichard, M.; Giannetti, K.; Ferreira, T.; Vrtilek, M.; Polacik, M.; Blazek, R.; Ferreira, M. G.
Show abstract
Telomere length is correlated positively with longevity at the individual level, but negatively when compared across species. Here, we tested the association between lifespan and telomere length in African annual killifish. We analyzed telomere length in 18 Nothobranchius strains derived from diverse habitats and measured the laboratory lifespan of 14 strains of N. furzeri and N. kadleci. We found that males had shorter telomeres than females. The longest telomeres were recorded in strains derived from dry region where male lifespans were shortest. At the individual level, we detected a weak negative association between rapid juvenile growth and shorter telomeres in early adulthood. Overall, average telomere length was a good descriptor of telomere length distribution. However, within-individual telomere length spread was not related to any pattern. This substantial variation in telomere length between strains from different environments provides killifish as powerful tool to understand the evolutionarily adaptive value of telomere length.
Matching journals
The top 7 journals account for 50% of the predicted probability mass.
Similar papers in this journal
Similar papers in this journal
- Maternal age effects on offspring lifespan and reproduction vary within a species 93%
- Variation in developmental rates is not linked to environmental unpredictability in annual killifishes 93%
- Seasonal plasticity in morphology and metabolism differs between migratory North American and resident Costa Rican monarch butterflies 93%
Similar papers in this journal
- Evolutionary transition to XY sex chromosomes associated with Y-linked duplication of a male hormone gene in a terrestrial isopod 92%
- Island demographics and trait associations in white-tailed deer 92%
- Mitochondrial structure despite nuclear panmixia: sex-specific dispersal dictates population structure in sperm whales 91%
Similar papers in this journal
Similar papers in this journal
- Population differences in the length and early-life dynamics of telomeres among European pied flycatchers 95%
- Sex-dependent influence of major histocompatibility complex diversity on fitness in a social mammal 94%
- Daphnia magna modifies its gene expression extensively in response to caloric restriction revealing a novel effect on haemoglobin isoform preference 93%
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.