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
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Publicado: Nature Portfolio 2017
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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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AT xianglongxu clockgeneisassociatedwithindividualvariationintheactivationofreproductiveendocrineandbehaviorofasianshorttoedlark
AT weiweiwang clockgeneisassociatedwithindividualvariationintheactivationofreproductiveendocrineandbehaviorofasianshorttoedlark
AT wenyuyang clockgeneisassociatedwithindividualvariationintheactivationofreproductiveendocrineandbehaviorofasianshorttoedlark
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