2022
Telomere length is highly repeatable and shorter in individuals with more elaborate sexual ornamentation in a short-lived passerine
KAUZÁLOVÁ, Tereza, Oldřich TOMÁŠEK, Ellis MULDER, Simon VERHULST, Tomáš ALBRECHT et. al.Základní údaje
Originální název
Telomere length is highly repeatable and shorter in individuals with more elaborate sexual ornamentation in a short-lived passerine
Autoři
KAUZÁLOVÁ, Tereza (203 Česká republika, garant, domácí), Oldřich TOMÁŠEK (203 Česká republika, domácí), Ellis MULDER, Simon VERHULST a Tomáš ALBRECHT
Vydání
Molecular Ecology, Wiley, 2022, 0962-1083
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.900
Kód RIV
RIV/00216224:14310/22:00129321
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000761096000001
Klíčová slova anglicky
ageing; biomarker; individual quality; life history; repeatability; tail streamer
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 24. 1. 2023 09:51, Mgr. Marie Šípková, DiS.
Anotace
V originále
Quantifying an individual's state as a fitness proxy has proven challenging, but accumulating evidence suggests that telomere length and attrition may indicate individual somatic state and success at self-maintenance, respectively. Sexual ornamentation is also thought to signal phenotypic quality, but links between telomeres and sexual ornamentation have been little explored. To address this issue, we examined whether telomere length and dynamics are predicted by the expression of a sexually selected ornament, the length of the outermost tail feathers (streamers), using longitudinal data from a population of European barn swallows (Hirundo rustica). In 139 adult individuals, each measured twice, we further assessed associations of telomere length with age, sex, breeding status and survival. Telomere length showed high individual repeatability (R = .97) across years while shortening with age in both sexes. Telomere length and dynamics were not significantly associated with survival to the next year, remaining lifespan or reproduction status (comparing breeding and nonbreeding yearlings). Tail streamer length, a sexually selected trait in barn swallows, was negatively associated with telomere length, independent of sex. Thus, telomere length may reflect the costs of carrying an elaborated sexual ornament, although ornament size did not significantly predict telomere shortening. In conclusion, telomere length in adult barn swallows is a highly consistent trait that shows a negative relationship with sexual ornamentation, suggesting a trade-off between sexual ornamentation and telomere length.
Návaznosti
GA21-22160S, projekt VaV |
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