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for analyzing the molecular mechanism and hybrid advantage of layer hen sexual maturity.
The findings were published in Frontiers in Endocrinology (IF=6.
055) and Poultry Science (IF=4.
014
).
Sexual maturity is the basis of high fecundity of laying hens, and the hybrid advantage of sexual maturity is widely used in
agricultural production.
Using Beijing oil chicken and Bailaihang chicken as parents, the researchers constructed a complete double-column hybrid population
of forward and reverse crossing.
Through the observation of positive and reverse population traits, it was found that there were obvious heterogeneous advantages
in egg age, pubic spacing, tubal length, egg production mode and egg production number.
It is speculated that egg laying patterns and sexual maturity may be the key factors responsible for the
heterogeneous dominance of chickens with several egg production traits.
agricultural production.
Using Beijing oil chicken and Bailaihang chicken as parents, the researchers constructed a complete double-column hybrid population
of forward and reverse crossing.
Through the observation of positive and reverse population traits, it was found that there were obvious heterogeneous advantages
in egg age, pubic spacing, tubal length, egg production mode and egg production number.
It is speculated that egg laying patterns and sexual maturity may be the key factors responsible for the
heterogeneous dominance of chickens with several egg production traits.
Subsequently, the researchers used bioinformatics and molecular biology techniques to analyze the lncRNA and mRNA expression profiles of the parent and the positive and negative populations, and found that non-additive effects were the main expression modes
of lncRNA and mRNA.
GO and KEGG analysis showed that these genes are closely related
to reproductive biological processes such as GnRH signaling pathway, female gonad development, steroids biogenesis, etc 。 Four lncRNA-mRNA pairs affecting the dominance of positive and reverse population mature hybrids were further screened by WGCNA analysis, among which the expression of lncRNA-mRNA pairs located in the GnRH signaling pathway was highly correlated with serum GnRH content, which proved that the non-additive effect of genes in the GnRH signaling pathway was a key factor
in the formation of chicken sexual mature hybrid dominance.
of lncRNA and mRNA.
GO and KEGG analysis showed that these genes are closely related
to reproductive biological processes such as GnRH signaling pathway, female gonad development, steroids biogenesis, etc 。 Four lncRNA-mRNA pairs affecting the dominance of positive and reverse population mature hybrids were further screened by WGCNA analysis, among which the expression of lncRNA-mRNA pairs located in the GnRH signaling pathway was highly correlated with serum GnRH content, which proved that the non-additive effect of genes in the GnRH signaling pathway was a key factor
in the formation of chicken sexual mature hybrid dominance.
This research was supported
by the basic business fund of the Chinese Academy of Agricultural Sciences, the National Modern Agricultural Industry Technology System, the National Natural Science Foundation of China, and the Science and Technology Innovation Project of the Chinese Academy of Agricultural Sciences.
by the basic business fund of the Chinese Academy of Agricultural Sciences, the National Modern Agricultural Industry Technology System, the National Natural Science Foundation of China, and the Science and Technology Innovation Project of the Chinese Academy of Agricultural Sciences.
Original link:
http://journal.
frontiersin.
org/article/10.
3389/fendo.
2022.
951534/full
frontiersin.
org/article/10.
3389/fendo.
2022.
951534/full
https://doi.
org/10.
1016/j.
psj.
2022.
102201
org/10.
1016/j.
psj.
2022.
102201
