Projects per year
Abstract / Description of output
Egg-laying performance is of great economic importance in poultry, but the underlying genetic mechanisms are still elusive. In this work, we conduct a multi-omics and multi-tissue integrative study in hens with distinct egg production, to detect the hub candidate genes and construct hub molecular networks contributing to egg-laying phenotypic differences. We identifiy three hub candidate genes as egg-laying facilitators: TFPI2, which promotes the GnRH secretion in hypothalamic neuron cells; CAMK2D, which promotes the FSHβ and LHβ secretion in pituitary cells; and OSTN, which promotes granulosa cell proliferation and the synthesis of sex steroid hormones. We reveal key endocrine factors involving egg production by inter-tissue crosstalk analysis, and demonstrate that both a hepatokine, APOA4, and an adipokine, ANGPTL2, could increase egg production by inter-tissue communication with hypothalamic-pituitary-ovarian axis. Together, These results reveal the molecular mechanisms of multi-tissue coordinative regulation of chicken egg-laying performance and provide key insights to avian reproductive regulation.
Original language | English |
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Article number | 7069 |
Pages (from-to) | 1-18 |
Number of pages | 18 |
Journal | Nature Communications |
Volume | 15 |
Issue number | 1 |
Early online date | 16 Aug 2024 |
DOIs | |
Publication status | Published - Dec 2024 |
Keywords / Materials (for Non-textual outputs)
- Animals
- Chickens/genetics
- Female
- Genome-Wide Association Study
- Gonadotropin-Releasing Hormone/metabolism
- Granulosa Cells/metabolism
- Oviposition/genetics
- Pituitary Gland/metabolism
- Hypothalamus/metabolism
- Reproduction/genetics
- Ovary/metabolism
- Follicle Stimulating Hormone, beta Subunit/genetics
- Angiopoietin-like Proteins/metabolism
- Avian Proteins/genetics
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Identifying the genomic basis of complex traits in farmed animals
1/04/23 → 31/03/28
Project: Research