Cited by 39Reproductive Physiology in LivestockGenetic and phenotypic traits in livestockAnimal Behavior and Reproduction

Transcriptome sequencing reveals genetic mechanisms underlying the transition between the laying and brooding phases and gene expression changes associated with divergent reproductive phenotypes in chickens

Shen, Xu, Bai, Xue, Xu, Jin, Zhou, Min, Xu, Haipin, Nie, Qinghua, Lu, Xuemei, Zhang, Xiquan·2016·Molecular Biology Reports

Abstract

Transition from laying to incubation behavior in chicken is an interesting topic in reproductive biology. The decline of incubation behavior in chicken population has led to considerable phenotypic differences in reproductive traits between breeds. However, the exact genetic mechanism of the reproductive phase transition still largely unknown and little is known about the gene expression changes that contribute to the phenotypic differences. We performed mRNA sequencing to investigate the molecular mechanism underlying the transition from laying to brooding and to detect difference in gene regulation underlying the phenotypic diversification using two chicken breeds. The majority of gene expression changes during phase transition were steroidogenesis and hormone-releasing genes. Brooding chickens shared a conservative pattern of greatly inhibited steroidogenic enzyme genes in the pituitary gland, therefore, low levels of steroidogenic enzymes might result in reproductive defects such as ovary regression and brooding onset. The conserved network responsible for brooding behavior was maintained by steroid biosynthesis and hormonal interactions. Interestingly, three transcription factors, SREBF2, NR5A1 and PGR, act as central signal modulators of steroid biosynthesis and hormonal interactions during the transition from laying to brooding modes at the molecular level. Furthermore, Genes correlated with protein synthesis and accumulation showed expression variation between breeds, which might result in different concentrations of and sensitivities to reproduction-related hormones. This study provided a new insight in neuroendocrine system at the molecular level, and helps to understand the genetic and hormonal responses that ultimately translate into behavior in chicken.

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Crossref · 10.1007/s11033-016-4033-8

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Authors
Shen, X., Bai, X., Xu, J., Zhou, M., Xu, H., Nie, Q., Lu, X., & Zhang, X.
Affiliations
  • South China Agricultural University (CN)
  • Chinese Academy of Sciences (CN)
  • Nanchang Normal University (CN)
Corresponding author
  • Lu, Xuemei
  • Zhang, Xiquan
Venue
Molecular Biology Reports
Published
2016-07-07
Volume
43
Issue
9
Pages
977-989
ISSN
  • 0301-4851 (ISSN-L)
  • 1573-4978
OpenAlex
W2469989691
Cited by
39
References
63
Citations by year
2025: 5 · 2024: 8 · 2023: 5 · 2022: 5 · 2021: 6 · 2020: 3 · 2019: 3 · 2018: 4
FWCI
4.78
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Biology Reports (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • China Agriculture Research System (CARS-42-G05)
  • China High-Tech Programs (2013AA102501)
  • National Natural Science Foundation of China (31301010)
  • The China Postdoctoral Science Foundation (2012M520359)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Reproductive Physiology in Livestock
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Animal Behavior and Reproduction
Keywords
brooding, steroidogenesis, steroidogenic enzymes, pituitary gland, chicken breeds, SREBF2, steroidogenic factor 1, PGR, transcription factors, neuroendocrine regulation, gene expression changes, protein synthesis genes, reproductive hormones
MeSH terms
Animals, Chickens, Female, Phenotype, Gene Expression, Sequence Analysis, DNA, Avian Proteins, Oviparity, Gene Regulatory Networks, Molecular Sequence Annotation, Transcriptome

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