Front Zool. 2018 Jun 19;15:25. doi: 10.1186/s12983-018-0272-y. eCollection 2018.
The effect of pre-laying maternal immunization on offspring growth and immunity differs across experimentally altered postnatal rearing conditions in a wild songbird.
Frontiers in zoology
Rafał Martyka, Ewa B Śliwińska, Mirosław Martyka, Mariusz Cichoń, Piotr Tryjanowski
Affiliations
Affiliations
- 1Institute of Nature Conservation, Polish Academy of Sciences, Mickiewicza 33, 31-120 Kraków, Poland.
- 2Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
- 3Institute of Zoology, Pozna? University of Life Sciences, Wojska Polskiego 71C, 60-625 Pozna?, Poland.
PMID: 29946341
PMCID: PMC6006776 DOI: 10.1186/s12983-018-0272-y
Abstract
BACKGROUND: Prenatal antibody transfer is an immune-mediated maternal effect by which females can shape postnatal offspring resistance to pathogens and parasites. Maternal antibodies passed on to offspring provide primary protection to neonates against diverse pathogenic antigens, but they may also affect offspring growth and influence the development of an offspring's own immune response. The effects of maternal antibodies on offspring performance commonly require that the disease environment experienced by a mother prior to breeding matches the environment encountered by her offspring after hatching/birth. However, other circumstances, like postnatal rearing conditions that affect offspring food availability, may also determine the effects of maternal antibodies on offspring growth and immunity. To date, knowledge about how prenatal immune-mediated maternal effects interact with various postnatal rearing conditions to affect offspring development and phenotype in wild bird population remains elusive. Here we experimentally studied the interactive effects of pre-laying maternal immunization with a bacterial antigen (lipopolysaccharide) and post-hatching rearing conditions, altered by brood size manipulation, on offspring growth and humoral immunity of wild great tits (
RESULTS: We found that maternal immunization and brood size manipulation interactively affected the growth and specific humoral immune response of avian offspring. Among nestlings reared in enlarged broods, only those that originated from immunized mothers grew better and were heavier at fledging stage compared to those that originated from non-immunized mothers. In contrast, no such effects were observed among nestlings reared in non-manipulated (control) broods. Moreover, offspring of immunized females had a stronger humoral immune response to lipopolysaccharide during postnatal development than offspring of non-immunized females, but only when the nestling was reared in control broods.
CONCLUSIONS: This study demonstrates that offspring development and their ability to cope with pathogens after hatching are driven by mutual influences of pathogen-induced prenatal maternal effects and post-hatching rearing conditions. Our findings suggest that immune-mediated maternal effects may have context-dependent influences on offspring growth and immune function, related to the postnatal environmental conditions experienced by the progeny.
Keywords: Brood size manipulation; Food availability; Great tit; Humoral immune response; LPS; Maternal antibodies; Parus major; Prenatal maternal effects
Conflict of interest statement
The experiment and all procedures conducted on birds in the study were approved by the Poznań Local Ethics Committee for Animal Experimentation (permit number: 72/2012) and with permission from the Re
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