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  Life history shapes variation in egg composition in the blue tit Cyanistes caeruleus

Valcu, C.-M., Scheltema, R. A., Schweiggert, R. M., Valcu, M., Teltscher, K., Walther, D. M., et al. (2019). Life history shapes variation in egg composition in the blue tit Cyanistes caeruleus. COMMUNICATIONS BIOLOGY, 2: 6. doi:10.1038/s42003-018-0247-8.

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 Creators:
Valcu, Cristina-Maria1, Author
Scheltema, Richard A.2, Author              
Schweiggert, Ralf M.1, Author
Valcu, Mihai1, Author
Teltscher, Kim1, Author
Walther, Dirk M.2, Author              
Carle, Reinhold1, Author
Kempenaers, Bart1, Author
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1external, ou_persistent22              
2Mann, Matthias / Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Max Planck Society, ou_1565159              

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Free keywords: PARUS-MAJOR; PIED FLYCATCHER; SEX-RATIO; CAROTENOID AVAILABILITY; ADAPTIVE SIGNIFICANCE; EXTRAPAIR PATERNITY; PARENTAL QUALITY; SIZE VARIATION; IMMUNE FACTORS; OFFSPRING SEXLife Sciences & Biomedicine - Other Topics; Science & Technology - Other Topics;
 Abstract: Maternal investment directly shapes early developmental conditions and therefore has long-term fitness consequences for the offspring. In oviparous species prenatal maternal investment is fixed at the time of laying. To ensure the best survival chances for most of their offspring, females must equip their eggs with the resources required to perform well under various circumstances, yet the actual mechanisms remain unknown. Here we describe the blue tit egg albumen and yolk proteomes and evaluate their potential to mediate maternal effects. We show that variation in egg composition (proteins, lipids, carotenoids) primarily depends on laying order and female age. Egg proteomic profiles are mainly driven by laying order, and investment in the egg proteome is functionally biased among eggs. Our results suggest that maternal effects on egg composition result from both passive and active (partly compensatory) mechanisms, and that variation in egg composition creates diverse biochemical environments for embryonic development.

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Language(s): eng - English
 Dates: 2019
 Publication Status: Published online
 Pages: 14
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: ISI: 000461140600003
DOI: 10.1038/s42003-018-0247-8
 Degree: -

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Title: COMMUNICATIONS BIOLOGY
Source Genre: Journal
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Publ. Info: 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA : NATURE PUBLISHING GROUP
Pages: - Volume / Issue: 2 Sequence Number: 6 Start / End Page: - Identifier: -