Universität zu Köln

Justen, Hannah, Hasselmann, Timo, Illera, Juan Carlos ORCID: 0000-0002-4389-0264, Delmore, Kira, Serrano, David ORCID: 0000-0001-6205-386X, Flinks, Heiner, Senzaki, Masayuki, Kawamura, Kazuhiro, Helm, Barbara and Liedvogel, Miriam ORCID: 0000-0002-8372-8560 (2022). Population-specific association of Clock gene polymorphism with annual cycle timing in stonechats. Sci Rep, 12 (1). BERLIN: NATURE PORTFOLIO. ISSN 2045-2322

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Abstract

Timing is essential for survival and reproduction of organisms across the tree of life. The core circadian clock gene Clk is involved in the regulation of annual timing events and shows highly conserved sequence homology across vertebrates except for one variable region of poly-glutamine repeats. Clk genotype varies in some species with latitude, seasonal timing and migration. However, findings are inconsistent, difficult to disentangle from environmental responses, and biased towards high latitudes. Here we combine field data with a common-garden experiment to study associations of Clk polymorphism with latitude, migration and annual-cycle timing within the stonechat species complex across its trans-equatorial distribution range. Our dataset includes 950 records from 717 individuals from nine populations with diverse migratory strategies. Gene diversity was lowest in resident African and Canary Island populations and increased with latitude, independently of migration distance. Repeat length and annual-cycle timing was linked in a population-specific way. Specifically, equatorial African stonechats showed delayed timing with longer repeat length for all annual-cycle stages. Our data suggest that at low latitudes with nearly constant photoperiod, Clk genotype might orchestrate a range of consistent, individual chronotypes. In contrast, the influence of Clk on annual-cycle timing at higher latitudes might be mediated by its interactions with genes involved in (circadian) photoperiodic pathways.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Justen, Hannah UNSPECIFIED UNSPECIFIED UNSPECIFIED Hasselmann, Timo UNSPECIFIED UNSPECIFIED UNSPECIFIED Illera, Juan Carlos UNSPECIFIED orcid.org/0000-0002-4389-0264 UNSPECIFIED Delmore, Kira UNSPECIFIED UNSPECIFIED UNSPECIFIED Serrano, David UNSPECIFIED orcid.org/0000-0001-6205-386X UNSPECIFIED Flinks, Heiner UNSPECIFIED UNSPECIFIED UNSPECIFIED Senzaki, Masayuki UNSPECIFIED UNSPECIFIED UNSPECIFIED Kawamura, Kazuhiro UNSPECIFIED UNSPECIFIED UNSPECIFIED Helm, Barbara UNSPECIFIED UNSPECIFIED UNSPECIFIED Liedvogel, Miriam UNSPECIFIED orcid.org/0000-0002-8372-8560 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-691463
DOI:	10.1038/s41598-022-11158-z
Journal or Publication Title:	Sci Rep
Volume:	12
Number:	1
Date:	2022
Publisher:	NATURE PORTFOLIO
Place of Publication:	BERLIN
ISSN:	2045-2322
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SAXICOLA-TORQUATA-AXILLARIS; MIGRATORY ACTIVITY; LATITUDINAL CLINE; SELECTION; EVOLUTION; BEHAVIOR; BIRD; DIVERSITY; SCHEDULES; PATTERNS Multiple languages Multidisciplinary Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/69146