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dc.contributor.author
Palacios, María Gabriela
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dc.contributor.author
Bronikowski, Anne M.
dc.contributor.author
Amer, Ali
dc.contributor.author
Gangloff, Eric J.
dc.date.available
2023-12-01T15:50:21Z
dc.date.issued
2023-01
dc.identifier.citation
Palacios, María Gabriela; Bronikowski, Anne M.; Amer, Ali; Gangloff, Eric J.; Transgenerational effects of maternal corticosterone across early life in a viviparous snake; Academic Press Inc Elsevier Science; General and Comparative Endocrinology; 331; 1-2023; 1-10
dc.identifier.issn
0016-6480
dc.identifier.uri
http://hdl.handle.net/11336/219016
dc.description.abstract
Glucocorticoids (GCs) are central mediators of vertebrate responses to intrinsic and extrinsic stimuli. Among the sources of variation in circulating GCs are transgenerational effects mediated by mothers. Here we studied potential maternal effects mediated by GCs on offspring phenotype in a live-bearing reptile, the western terrestrial garter snake (Thamnophis elegans). We evaluated the association between baseline corticosterone (CORT) levels during gestation (i.e., preparturition) in field-captured mothers and 1) reproductive success and offspring sex ratios, 2) birth phenotypic traits of offspring born under common-garden laboratory conditions, and 3) neonate (age 3 months) and juvenile (age 12 months) traits of offspring raised under two thermal regimes (‘warm’ and ‘cool’) during their first year of life. Reproductive success and offspring sex ratios were not associated with preparturition maternal CORT, but pregnant snakes with higher CORT levels gave birth to smaller, lighter offspring, which tended to grow faster to age three months. Neonate baseline CORT varied with preparturition maternal CORT in a sex-specific manner (positive trend for females, negative for males). Maternal CORT effects on offspring phenotype were no longer detectable in juveniles at age one year. Instead, juvenile phenotypes were most influenced by rearing environment, with offspring raised under the cool regime showing higher baseline CORT and slower growth than those raised under warmer conditions. Our findings support the notion that offspring phenotype might be continuously adjusted in response to environmental cues —both pre- and post-natal— and that the strength of maternal CORT effects declines as offspring develop and experience unique environmental challenges. Our results contribute to a growing literature on transgenerational effects of hormones and help to fill a gap in our knowledge of these effects in ectothermic amniotes.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Academic Press Inc Elsevier Science
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CROSS-GENERATIONAL EFFECTS
dc.subject
DEVELOPMENTAL PLASTICITY
dc.subject
GLUCOCORTICOIDS
dc.subject
MATERNAL EFFECTS
dc.subject
PRENATAL
dc.subject
TEMPERATURE
dc.subject
THAMNOPHIS
dc.subject.classification
Otros Tópicos Biológicos
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Transgenerational effects of maternal corticosterone across early life in a viviparous snake
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-11-29T13:20:36Z
dc.journal.volume
331
dc.journal.pagination
1-10
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Palacios, María Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina. Iowa State University;
dc.description.fil
Fil: Bronikowski, Anne M.. Michigan State University; Estados Unidos. Iowa State University;
dc.description.fil
Fil: Amer, Ali. Ohio Wesleyan University.; Estados Unidos
dc.description.fil
Fil: Gangloff, Eric J.. Ohio Wesleyan University.; Estados Unidos
dc.journal.title
General and Comparative Endocrinology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0016648022001873
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ygcen.2022.114162
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