Clock gene is associated with individual variation in the activation of reproductive endocrine and behavior of Asian short toed lark

Abstract Within year individual variation in the timing of seasonal reproduction within wild bird populations in highly seasonal environments can be pronounced, but the molecular and physiological mechanisms responsible for this variation are unclear. We investigated the relationship between Clock g...

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Autores principales:	Shuping Zhang, Xianglong Xu, Weiwei Wang, Wenyu Yang, Wei Liang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7e9a2662274f4c5999609494b44a25eb
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spelling	oai:doaj.org-article:7e9a2662274f4c5999609494b44a25eb2021-12-02T11:52:19ZClock gene is associated with individual variation in the activation of reproductive endocrine and behavior of Asian short toed lark10.1038/s41598-017-15064-72045-2322https://doaj.org/article/7e9a2662274f4c5999609494b44a25eb2017-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-15064-7https://doaj.org/toc/2045-2322Abstract Within year individual variation in the timing of seasonal reproduction within wild bird populations in highly seasonal environments can be pronounced, but the molecular and physiological mechanisms responsible for this variation are unclear. We investigated the relationship between Clock gene poly-Q length, activation of the HPG endocrine axis, and the timing of breeding behavior, in a wild population of the Asian short-toed lark (Calandrella cheleensis) in Inner Mongolia, China. Six variants of Clock gene poly-Q alleles were identified in this population. Clock poly-Q mean allele length was positively correlated with the mean peak date deviation of individual birds. The shorter an individual’s Clock poly-Q mean allele length, the earlier its plasma LH, T and E2 values peaked. Mean Clock poly-Q allele length of nestlings in the same nest were positively correlated with the standardized laying date of the first egg in that nest. These results suggest that the Clock gene influences the reproductive timing of birds through its effect on the HPG endocrine axis, and that individual variation in the timing of reproduction may have a genetic basis.Shuping ZhangXianglong XuWeiwei WangWenyu YangWei LiangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shuping Zhang Xianglong Xu Weiwei Wang Wenyu Yang Wei Liang Clock gene is associated with individual variation in the activation of reproductive endocrine and behavior of Asian short toed lark
description	Abstract Within year individual variation in the timing of seasonal reproduction within wild bird populations in highly seasonal environments can be pronounced, but the molecular and physiological mechanisms responsible for this variation are unclear. We investigated the relationship between Clock gene poly-Q length, activation of the HPG endocrine axis, and the timing of breeding behavior, in a wild population of the Asian short-toed lark (Calandrella cheleensis) in Inner Mongolia, China. Six variants of Clock gene poly-Q alleles were identified in this population. Clock poly-Q mean allele length was positively correlated with the mean peak date deviation of individual birds. The shorter an individual’s Clock poly-Q mean allele length, the earlier its plasma LH, T and E2 values peaked. Mean Clock poly-Q allele length of nestlings in the same nest were positively correlated with the standardized laying date of the first egg in that nest. These results suggest that the Clock gene influences the reproductive timing of birds through its effect on the HPG endocrine axis, and that individual variation in the timing of reproduction may have a genetic basis.
format	article
author	Shuping Zhang Xianglong Xu Weiwei Wang Wenyu Yang Wei Liang
author_facet	Shuping Zhang Xianglong Xu Weiwei Wang Wenyu Yang Wei Liang
author_sort	Shuping Zhang
title	Clock gene is associated with individual variation in the activation of reproductive endocrine and behavior of Asian short toed lark
title_short	Clock gene is associated with individual variation in the activation of reproductive endocrine and behavior of Asian short toed lark
title_full	Clock gene is associated with individual variation in the activation of reproductive endocrine and behavior of Asian short toed lark
title_fullStr	Clock gene is associated with individual variation in the activation of reproductive endocrine and behavior of Asian short toed lark
title_full_unstemmed	Clock gene is associated with individual variation in the activation of reproductive endocrine and behavior of Asian short toed lark
title_sort	clock gene is associated with individual variation in the activation of reproductive endocrine and behavior of asian short toed lark
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/7e9a2662274f4c5999609494b44a25eb
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Clock gene is associated with individual variation in the activation of reproductive endocrine and behavior of Asian short toed lark

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