Literaturdatenbank
Literaturdatenbank |
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Rafferty, A. R., & Reina, R. D. (2012). Arrested embryonic development: a review of strategies to delay hatching in egg-laying reptiles. Proceedings of the Royal Society B: Biological Sciences, (Published online before print).
Added by: Sarina Wunderlich (30 Jun 2012 22:01:46 UTC) |
| Resource type: Journal Article DOI: 10.1098/rspb.2012.0100 BibTeX citation key: Rafferty2012 View all bibliographic details  |
Categories: General Keywords: Carettochelys insculpta, Chelodina expansa, Chelodina rugosa, Deirochelys reticularia, Elseya dentata, Kinosternon baurii, Kinosternon flavescens, Kinosternon scorpioides, Melanochelys trijuga, Rhinoclemmys pulcherrima, Schildkröten = turtles + tortoises, Zeitigung = incubation Creators: Rafferty, Reina Collection: Proceedings of the Royal Society B: Biological Sciences |
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| Abstract |
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Arrested embryonic development involves the downregulation or cessation of active cell division and metabolic activity, and the capability of an animal to arrest embryonic development results in temporal plasticity of the duration of embryonic period. Arrested embryonic development is an important reproductive strategy for egg-laying animals that provide no parental care after oviposition. In this review, we discuss each type of embryonic developmental arrest used by oviparous reptiles. Environmental pressures that might have directed the evolution of arrest are addressed and we present previously undiscussed environmentally dependent physiological processes that may occur in the egg to bring about arrest. Areas for future research are proposed to clarify how ecology affects the phenotype of developing embryos. We hypothesize that oviparous reptilian mothers are capable of providing their embryos with a level of phenotypic adaptation to local environmental conditions by incorporating maternal factors into the internal environment of the egg that result in different levels of developmental sensitivity to environmental conditions after they are laid. Chelodina rugosa expansa Kinosternon baurii scorpioides flavescens Deirochelys reticularia Staurotypus Rhinoclemmys pulcherrima Elseya dentata Melanochelys trijuga Carettochelys insculpta
Added by: Sarina Wunderlich |