Varying hydric conditions during incubation influence egg water exchange and hatchling phenotype in the red-eared slider turtle

Physiological and Biochemical Zoology : PBZ
Virginie DelmasAnne-Caroline Prévot-Julliard

Abstract

Environmental conditions within the nest, notably temperature and moisture of substrate, exert a powerful influence during embryogenesis in oviparous reptiles. The influence of fluctuating nest temperatures has been experimentally examined in different reptile species; however, similar experiments using moisture as the key variable are lacking. In this article, we examine the effect of various substrate moisture regimes during incubation on different traits (egg mass, incubation length, and hatchling mass) in a chelonian species with flexible-shelled eggs, the red-eared slider turtle (Trachemys scripta elegans). Our results show that the rate of water uptake by the eggs was higher in wet than in dry substrate and varied across development. More important, during the first third of development, the egg mass changes were relatively independent of the soil moisture level; they became very sensitive to moisture levels during the other two-thirds. Moreover, hydric conditions exerted a strong influence on the eggs' long-term sensitivity to the moisture of the substrate. Even short-term episodes of high or low levels of moisture modified permanently their water sensitivity, notably through modification of eggshell shape and volume, an...Continue Reading

References

Aug 2, 1994·Proceedings of the National Academy of Sciences of the United States of America·F J Janzen
Mar 9, 2000·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·G C PackardG F Birchard
Jun 26, 2001·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·X Ji, W G Du
Oct 2, 2002·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·D T Booth
Feb 11, 2005·Physiological and Biochemical Zoology : PBZ·Arthur GeorgesJ Sean Doody
Jun 16, 2005·Physiological and Biochemical Zoology : PBZ·Gregory P Brown, Richard Shine

❮ Previous
Next ❯

Citations

May 3, 2011·PloS One·Guillermo Velo-AntónAdolfo Cordero-Rivera
Mar 29, 2014·PloS One·Xavier BonnetThomas Fauvel
Jul 17, 2009·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Ryan T PaitzRachel M Bowden
Apr 13, 2013·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Catherine Louise MichelXavier Bonnet
Jun 8, 2021·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Pierina MendozaAulus C Carciofi

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

© 2022 Meta ULC. All rights reserved