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001-es BibID:BIBFORM103262
035-os BibID:(cikkazonosító)39 (WOS)000521053300003 (Scopus)85081599279
Első szerző:Mahr, Katharina
Cím:Insulin-like growth factor 1 is related to the expression of plumage traits in a passerine species / Katharina Mahr, Orsolya Vincze, Zsófia Tóth, Herbert Hoi, Ádám Z. Lendvai
Dátum:2020
ISSN:0340-5443
Megjegyzések:Avian plumage colors and ornaments are excellent models to study the endocrine mechanisms linking sexually selected traits and individual parameters of quality and condition. Insulin-like growth factor 1 (IGF-1) is an evolutionarily highly conserved peptide hormone. Its regulatory role in cell proliferation and differentiation and its high sensitivity to the nutritional state of individuals suggest it as an interesting candidate, possibly providing a link between body condition and individual capacity to grow elaborated ornamental features. We investigated whether IGF-1 levels during molting correlate with the expression of multiple ornaments in a sexually dichromatic passerine species, the bearded reedling (Panurus biarmicus). We collected blood samples of males and females shortly before the molting completed and measured the size and colors of ornamental traits. Our results indicate that in males, structural plumage colors, the size of the melanin-based ornament (beard), and tail length are independent traits. IGF-1 levels are associated with the length of the tail and the expression of male structural plumage components (UV coloration), but not the melanin-based ornament. In females, plumage color and tail length were independent traits, which were not related to IGF-1 levels. To the best of our knowledge, this study provides the first evidence that IGF-1 could play a role in the development of secondary sexual characters in a bird species.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Plumage coloration
Sexual selection
Physiology
IGF-1
Condition
Megjelenés:Behavioral Ecology and Sociobiology. - 74 : 3 (2020), p. 1-12. -
További szerzők:Vincze Orsolya (1988-) (biológus) Tóth Zsófia (1991-) (biológus) Hoi, Herbert Lendvai Ádám Zoltán (1977-) (biológus)
Pályázati támogatás:K 113108
OTKA
EFOP-3.6.1-16-2016-00022
EFOP
TET 15-1-2016-0044
Egyéb
MÁEÖ2016_15/76740
Egyéb
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