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Physiologically Persistent Corpora lutea in Eurasian Lynx (Lynx lynx) – Longitudinal Ultrasound and Endocrine Examinations Intra-Vitam

Felids generally follow a poly-estrous reproductive strategy. Eurasian lynx (Lynx lynx) display a different pattern of reproductive cyclicity where physiologically persistent corpora lutea (CLs) induce a mono-estrous condition which results in highly seasonal reproduction. The present study was base...

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Autores principales: Painer, Johanna, Jewgenow, Katarina, Dehnhard, Martin, Arnemo, Jon M., Linnell, John D. C., Odden, John, Hildebrandt, Thomas B., Goeritz, Frank
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3943960/
https://www.ncbi.nlm.nih.gov/pubmed/24599348
http://dx.doi.org/10.1371/journal.pone.0090469
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author Painer, Johanna
Jewgenow, Katarina
Dehnhard, Martin
Arnemo, Jon M.
Linnell, John D. C.
Odden, John
Hildebrandt, Thomas B.
Goeritz, Frank
author_facet Painer, Johanna
Jewgenow, Katarina
Dehnhard, Martin
Arnemo, Jon M.
Linnell, John D. C.
Odden, John
Hildebrandt, Thomas B.
Goeritz, Frank
author_sort Painer, Johanna
collection PubMed
description Felids generally follow a poly-estrous reproductive strategy. Eurasian lynx (Lynx lynx) display a different pattern of reproductive cyclicity where physiologically persistent corpora lutea (CLs) induce a mono-estrous condition which results in highly seasonal reproduction. The present study was based around a sono-morphological and endocrine study of captive Eurasian lynx, and a control-study on free-ranging lynx. We verified that CLs persist after pregnancy and pseudo-pregnancy for at least a two-year period. We could show that lynx are able to enter estrus in the following year, while CLs from the previous years persisted in structure and only temporarily reduced their function for the period of estrus onset or birth, which is unique among felids. The almost constant luteal progesterone secretion (average of 5 ng/ml serum) seems to prevent folliculogenesis outside the breeding season and has converted a poly-estrous general felid cycle into a mono-estrous cycle specific for lynx. The hormonal regulation mechanism which causes lynx to have the longest CL lifespan amongst mammals remains unclear. The described non-felid like ovarian physiology appears to be a remarkably non-plastic system. The lynx's reproductive ability to adapt to environmental and anthropogenic changes needs further investigation.
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spelling pubmed-39439602014-03-10 Physiologically Persistent Corpora lutea in Eurasian Lynx (Lynx lynx) – Longitudinal Ultrasound and Endocrine Examinations Intra-Vitam Painer, Johanna Jewgenow, Katarina Dehnhard, Martin Arnemo, Jon M. Linnell, John D. C. Odden, John Hildebrandt, Thomas B. Goeritz, Frank PLoS One Research Article Felids generally follow a poly-estrous reproductive strategy. Eurasian lynx (Lynx lynx) display a different pattern of reproductive cyclicity where physiologically persistent corpora lutea (CLs) induce a mono-estrous condition which results in highly seasonal reproduction. The present study was based around a sono-morphological and endocrine study of captive Eurasian lynx, and a control-study on free-ranging lynx. We verified that CLs persist after pregnancy and pseudo-pregnancy for at least a two-year period. We could show that lynx are able to enter estrus in the following year, while CLs from the previous years persisted in structure and only temporarily reduced their function for the period of estrus onset or birth, which is unique among felids. The almost constant luteal progesterone secretion (average of 5 ng/ml serum) seems to prevent folliculogenesis outside the breeding season and has converted a poly-estrous general felid cycle into a mono-estrous cycle specific for lynx. The hormonal regulation mechanism which causes lynx to have the longest CL lifespan amongst mammals remains unclear. The described non-felid like ovarian physiology appears to be a remarkably non-plastic system. The lynx's reproductive ability to adapt to environmental and anthropogenic changes needs further investigation. Public Library of Science 2014-03-05 /pmc/articles/PMC3943960/ /pubmed/24599348 http://dx.doi.org/10.1371/journal.pone.0090469 Text en © 2014 Painer et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Painer, Johanna
Jewgenow, Katarina
Dehnhard, Martin
Arnemo, Jon M.
Linnell, John D. C.
Odden, John
Hildebrandt, Thomas B.
Goeritz, Frank
Physiologically Persistent Corpora lutea in Eurasian Lynx (Lynx lynx) – Longitudinal Ultrasound and Endocrine Examinations Intra-Vitam
title Physiologically Persistent Corpora lutea in Eurasian Lynx (Lynx lynx) – Longitudinal Ultrasound and Endocrine Examinations Intra-Vitam
title_full Physiologically Persistent Corpora lutea in Eurasian Lynx (Lynx lynx) – Longitudinal Ultrasound and Endocrine Examinations Intra-Vitam
title_fullStr Physiologically Persistent Corpora lutea in Eurasian Lynx (Lynx lynx) – Longitudinal Ultrasound and Endocrine Examinations Intra-Vitam
title_full_unstemmed Physiologically Persistent Corpora lutea in Eurasian Lynx (Lynx lynx) – Longitudinal Ultrasound and Endocrine Examinations Intra-Vitam
title_short Physiologically Persistent Corpora lutea in Eurasian Lynx (Lynx lynx) – Longitudinal Ultrasound and Endocrine Examinations Intra-Vitam
title_sort physiologically persistent corpora lutea in eurasian lynx (lynx lynx) – longitudinal ultrasound and endocrine examinations intra-vitam
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3943960/
https://www.ncbi.nlm.nih.gov/pubmed/24599348
http://dx.doi.org/10.1371/journal.pone.0090469
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