Cited by 148Reproductive Biology and FertilityDevelopmental Biology and Gene RegulationAnimal Genetics and Reproduction

Embryonic diapause: Development on hold

Fenelon, Jane C., Banerjee, Arnab, Murphy, Bruce D.·2014·The International Journal of Developmental Biology

Abstract

Embryonic diapause, the temporary suspension of development of the embryo, is a fascinating reproductive strategy that has been frequently exploited across the animal kingdom. It is characterized by an arrest in development that occurs at the blastocyst stage in over 130 species of mammals. Its presumed function is to uncouple mating from parturition, to ensure that both occur at the most propitious moment for survival of the species. Diapause can be facultative, i.e. induced by physiological conditions, or obligate, i.e. present in every gestation of a species. In the latter case, the proximal signals for regulation are related to photoperiod. Three diverse models, the mouse, the mustelid carnivores and the wallaby have been studied in detail. From these studies it can be discerned that, although the endocrine cues responsible for induction of diapause and re-initiation of development vary widely between species, there are a number of commonalities. Evidence to date indicates that the uterus exercises the proximal regulatory influence over whether an embryo enters into and when it exits from diapause. Some factors have been identified that appear crucial to this regulation, in particular, the polyamines. Recent studies indicate that diapause can be induced in species where it does not exist in nature. This suggests that the potential for diapause in mammals to be due to a single evolutionary event, to which control mechanisms adapted when the trait was beneficial to reproductive success. Further work at the molecular, cellular and organismic levels will be required before the physiological basis of diapause is resolved.

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Crossref · 10.1387/ijdb.140074bm

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Authors
Fenelon, J. C., Banerjee, A., & Murphy, B. D.
Affiliations
Université de Montréal (CA)
Venue
The International Journal of Developmental Biology
Publisher
EHU Press
Published
2014
Volume
58
Issue
2-3-4
Pages
163-174
ISSN
0214-6282 (ISSN-L)
OpenAlex
W1976804823
Cited by
147
References
144
Citations by year
2026: 4 · 2025: 16 · 2024: 17 · 2023: 11 · 2022: 13 · 2021: 15 · 2020: 16 · 2019: 14 · 2018: 8 · 2017: 16 · 2016: 10 · 2015: 6 · 2014: 1
FWCI
10.89
Type
journal article
Language
en
Open access
closed
Locations
  • The International Journal of Developmental Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Biology and Fertility
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Animal Genetics and Reproduction
Keywords
delayed implantation, facultative diapause, photoperiod, uterus, polyamines, wallabies, mice
MeSH terms
Animals, Blastocyst, Embryo, Mammalian, Female, Humans, Embryo Implantation, Delayed, Reproduction, Uterus, Embryonic Development, Mice

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