J 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
Název: Diverzita a fyziologické mechanizmy stárnutí v populaci volně žijícího pěvce
Investor: Grantová agentura ČR, Diverzita a fyziologické mechanizmy stárnutí v populaci volně žijícího pěvce