Analysis of the differentially expressed genes in the combs and testes of Qingyuan partridge roosters at different developmental stages

Abstract Background The sexual maturity of chickens is an important economic trait, and the breeding of precocious and delayed puberty roosters is an important selection strategy for broilers. The comb serves as an important secondary sexual characteristic of roosters and determines their sexual pre...

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Main Authors: Hao Qi, Zhidan Deng, Fei Ye, Junwei Gou, Miaoxin Huang, Hai Xiang, Hua Li
Format: Article
Language:English
Published: BMC 2024-01-01
Series:BMC Genomics
Subjects:
Online Access:https://doi.org/10.1186/s12864-024-09960-2
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author Hao Qi
Zhidan Deng
Fei Ye
Junwei Gou
Miaoxin Huang
Hai Xiang
Hua Li
author_facet Hao Qi
Zhidan Deng
Fei Ye
Junwei Gou
Miaoxin Huang
Hai Xiang
Hua Li
author_sort Hao Qi
collection DOAJ
description Abstract Background The sexual maturity of chickens is an important economic trait, and the breeding of precocious and delayed puberty roosters is an important selection strategy for broilers. The comb serves as an important secondary sexual characteristic of roosters and determines their sexual precocity. Moreover, comb development is closely associated with gonad development in roosters. However, the underlying molecular mechanism regulating the sexual maturity of roosters has not yet been fully explored. Results In order to identify the genes related to precocious puberty in Qingyuan partridge roosters, and based on the synchrony of testis and combs development, combined with histological observation and RNA-seq method, the developmental status and gene expression profile of combs and testis were obtained. The results showed that during the early growth and development period (77 days of age), the development of combs and testis was significant in the high comb (H) group versus the low comb (L) group (p < 0.05); however, the morphological characteristic of the comb and testicular tissues converged during the late growth and development period (112 days of age) in the H and L groups. Based on these results, RNA-sequencing analysis was performed on the comb and testis tissues of the 77 and 112 days old Qingyuan Partridge roosters with different comb height traits. GO and KEGG analysis enrichment analysis showed that the differentially expressed genes were primarily enriched in MAPK signaling, VEGF signaling, and retinol metabolism pathways. Moreover, weighted correlation network analysis and module co-expression network analysis identified WNT6, AMH, IHH, STT3A, PEX16, KPNA7, CATHL2, ROR2, PAMR1, WISP2, IL17REL, NDRG4, CYP26B1, and CRHBP as the key genes associated with the regulation of precocity and delayed puberty in Qingyuan Partridge roosters. Conclusions In summary, we identified the key regulatory genes of sexual precocity in roosters, which provide a theoretical basis for understanding the developmental differences between precocious and delayed puberty in roosters.
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spelling doaj.art-964b21b033ef4970b881efdfaf76c80a2024-01-07T12:12:34ZengBMCBMC Genomics1471-21642024-01-0125111610.1186/s12864-024-09960-2Analysis of the differentially expressed genes in the combs and testes of Qingyuan partridge roosters at different developmental stagesHao Qi0Zhidan Deng1Fei Ye2Junwei Gou3Miaoxin Huang4Hai Xiang5Hua Li6Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan UniversityGuangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan UniversityGuangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan UniversityGuangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan UniversityGuangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan UniversityGuangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan UniversityGuangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan UniversityAbstract Background The sexual maturity of chickens is an important economic trait, and the breeding of precocious and delayed puberty roosters is an important selection strategy for broilers. The comb serves as an important secondary sexual characteristic of roosters and determines their sexual precocity. Moreover, comb development is closely associated with gonad development in roosters. However, the underlying molecular mechanism regulating the sexual maturity of roosters has not yet been fully explored. Results In order to identify the genes related to precocious puberty in Qingyuan partridge roosters, and based on the synchrony of testis and combs development, combined with histological observation and RNA-seq method, the developmental status and gene expression profile of combs and testis were obtained. The results showed that during the early growth and development period (77 days of age), the development of combs and testis was significant in the high comb (H) group versus the low comb (L) group (p < 0.05); however, the morphological characteristic of the comb and testicular tissues converged during the late growth and development period (112 days of age) in the H and L groups. Based on these results, RNA-sequencing analysis was performed on the comb and testis tissues of the 77 and 112 days old Qingyuan Partridge roosters with different comb height traits. GO and KEGG analysis enrichment analysis showed that the differentially expressed genes were primarily enriched in MAPK signaling, VEGF signaling, and retinol metabolism pathways. Moreover, weighted correlation network analysis and module co-expression network analysis identified WNT6, AMH, IHH, STT3A, PEX16, KPNA7, CATHL2, ROR2, PAMR1, WISP2, IL17REL, NDRG4, CYP26B1, and CRHBP as the key genes associated with the regulation of precocity and delayed puberty in Qingyuan Partridge roosters. Conclusions In summary, we identified the key regulatory genes of sexual precocity in roosters, which provide a theoretical basis for understanding the developmental differences between precocious and delayed puberty in roosters.https://doi.org/10.1186/s12864-024-09960-2ChickenCombTestisSexual maturityWeighted correlation network analysis (WGCNA)
spellingShingle Hao Qi
Zhidan Deng
Fei Ye
Junwei Gou
Miaoxin Huang
Hai Xiang
Hua Li
Analysis of the differentially expressed genes in the combs and testes of Qingyuan partridge roosters at different developmental stages
BMC Genomics
Chicken
Comb
Testis
Sexual maturity
Weighted correlation network analysis (WGCNA)
title Analysis of the differentially expressed genes in the combs and testes of Qingyuan partridge roosters at different developmental stages
title_full Analysis of the differentially expressed genes in the combs and testes of Qingyuan partridge roosters at different developmental stages
title_fullStr Analysis of the differentially expressed genes in the combs and testes of Qingyuan partridge roosters at different developmental stages
title_full_unstemmed Analysis of the differentially expressed genes in the combs and testes of Qingyuan partridge roosters at different developmental stages
title_short Analysis of the differentially expressed genes in the combs and testes of Qingyuan partridge roosters at different developmental stages
title_sort analysis of the differentially expressed genes in the combs and testes of qingyuan partridge roosters at different developmental stages
topic Chicken
Comb
Testis
Sexual maturity
Weighted correlation network analysis (WGCNA)
url https://doi.org/10.1186/s12864-024-09960-2
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