keyword
https://read.qxmd.com/read/38492250/new-insights-into-the-genetic-loci-related-to-egg-weight-and-age-at-first-egg-traits-in-broiler-breeder
#1
JOURNAL ARTICLE
Xiaochun Ma, Fan Ying, Zhengda Li, Lu Bai, Mengjie Wang, Dan Zhu, Dawei Liu, Jie Wen, Guiping Zhao, Ranran Liu
Egg weight (EW) and age at first egg (AFE) are economically important traits in breeder chicken production. The genetic basis of these traits, however, is far from understood, especially for broiler breeders. In this study, genetic parameter estimation, genome-wide association analysis, meta-analysis, and selective sweep analysis were carried out to identify genetic loci associated with EW and AFE in 6,842 broiler breeders. The study found that the heritability of EW ranged from 0.42 to 0.44, while the heritability of AFE was estimated at 0...
March 5, 2024: Poultry Science
https://read.qxmd.com/read/38492249/nr5a1-and-nr5a2-regulate-follicle-development-in-chicken-gallus-gallus-by-altering-proliferation-apoptosis-and-steroid-hormone-synthesis-of-granulosa-cells
#2
JOURNAL ARTICLE
Ruixue Nie, Haoyu Tian, Wenhui Zhang, Fuwei Li, Bo Zhang, Hao Zhang
Chicken ovarian follicle development is regulated by complex and dynamic gene expression. Nuclear receptor 5A1 and 5A2 (NR5A1 and NR5A2, respectively) are key genes that regulate steroid hormone production and gonadal development in mammals; however, studies on follicular development in the chicken ovary are scarce. In this study, we investigated the functions of NR5A1 and NR5A2 on follicle development in chickens. The results showed that the expression of NR5A1 and NR5A2 was significantly higher in small yellow follicles and F5...
March 6, 2024: Poultry Science
https://read.qxmd.com/read/38474379/nobiletin-ameliorates-aging-of-chicken-ovarian-prehierarchical-follicles-by-suppressing-oxidative-stress-and-promoting-autophagy
#3
JOURNAL ARTICLE
Jingchun Bai, Xinyu Wang, Yiqiu Chen, Qiongyu Yuan, Zhaoyu Yang, Yuling Mi, Caiqiao Zhang
With the increase in the age of laying chickens, the aging of follicles is accelerated, and the reproductive ability is decreased. Increased oxidative stress and mitochondrial malfunction are indispensable causes of ovarian aging. In this study, the physiological condition of prehierarchical small white follicles (SWFs) was compared between D280 high-producing chickens and D580 aging chickens, and the effect of a plant-derived flavonoid nobiletin (Nob), a natural antioxidant, on senescence of SWFs granulosa cells (SWF-GCs) was investigated...
February 27, 2024: Cells
https://read.qxmd.com/read/38471223/integrated-transcriptomic-analysis-on-chicken-ovary-reveals-cyp21a1-affects-follicle-granulosa-cell-development-and-steroid-hormone-synthesis
#4
JOURNAL ARTICLE
Zhangjing You, Jingwei Yuan, Yuanmei Wang, Yanyan Sun, Aixin Ni, Yunlei Li, Hui Ma, Tenghe Ma, Jilan Chen
Egg production is an economically important trait in poultry breeding and production. Follicular development was regulated by several hormones released and genes expressed in the granulosa cells, impacting the egg production and fecundity of hens. However, the molecular functions of these candidate genes that modulate these processes remain largely unknown. In the present study, bioinformatics analyses were performed to identify the candidate genes related to egg production in the ovarian tissue of White Leghorns with high egg production and Beijing You chicken with low egg production during sexual maturity and peak laying periods...
February 24, 2024: Poultry Science
https://read.qxmd.com/read/38468340/high-expression-circralgps2-in-atretic-follicle-induces-chicken-granulosa-cell-apoptosis-and-autophagy-via-encoding-a-new-protein
#5
JOURNAL ARTICLE
Haorong He, Yuanhang Wei, Yuqi Chen, Xiyu Zhao, Xiaoxu Shen, Qing Zhu, Huadong Yin
BACKGROUND: The reproductive performance of chickens mainly depends on the development of follicles. Abnormal follicle development can lead to decreased reproductive performance and even ovarian disease among chickens. Chicken is the only non-human animal with a high incidence of spontaneous ovarian cancer. In recent years, the involvement of circRNAs in follicle development and atresia regulation has been confirmed. RESULTS: In the present study, we used healthy and atretic chicken follicles for circRNA RNC-seq...
March 11, 2024: Journal of Animal Science and Biotechnology
https://read.qxmd.com/read/38428353/the-effect-of-ghrelin-on-bursa-and-cecal-tonsils-of-chickens-infected-with-an-attenuated-virus-strain-of-infectious-bursal-disease-virus
#6
JOURNAL ARTICLE
Zhiyong Xu, Yan Yu, Shuxian Fu, Beibei Li, Liu Liu, Li Wang, Qiuxia Wang, Jinyou Ma
Infectious bursal disease (IBD) significantly affects the poultry industry, causing substantial economic losses. This study aimed to investigate the effects of ghrelin on chicks infected with an attenuated virus strain of IBDV (aIBDV). Chicks were divided into 3 groups: a control group (group I), an aIBDV infection group (group II), and a ghrelin + aIBDV infection group (group III). Mice in groups II and III were fed until they reached 19 d of age and then inoculated with aIBDV to establish a subclinical infection model...
February 20, 2024: Poultry Science
https://read.qxmd.com/read/38426211/identification-and-functional-analysis-of-ovarian-lncrnas-during-different-egg-laying-periods-in-taihe-black-bone-chickens
#7
JOURNAL ARTICLE
Yunyan Huang, Shibao Li, Yuting Tan, Chunhui Xu, Xuan Huang, Zhaozheng Yin
Introduction: Long non-coding RNA (lncRNA) refers to a category of non-coding RNA molecules exceeding 200 nucleotides in length, which exerts a regulatory role in the context of ovarian development. There is a paucity of research examining the involvement of lncRNA in the regulation of ovary development in Taihe Black-Bone Chickens. In order to further investigate the egg laying regulation mechanisms of Taihe Black-Bone Chickens at different periods, transcriptome analysis was conducted on the ovarian tissues at different laying periods...
2024: Frontiers in Physiology
https://read.qxmd.com/read/38422566/circular-rna-circrps19-promotes-chicken-granulosa-cell-proliferation-and-steroid-hormone-synthesis-by-interrupting-the-mir-218-5p-inhbb-axis
#8
JOURNAL ARTICLE
Yuanhang Wei, Xiaoxu Shen, Xiyu Zhao, Haorong He, Yao Zhang, Qing Zhu, Huadong Yin
Ovarian follicle development is an important physiological activity for females and makes great significance in maintaining female health and reproduction performance. The development of ovarian follicle is mainly affected by the granulosa cells (GCs), whose growth is regulated by a variety of factors. Here, we identified a novel circular RNA (circRNA) derived from the Ribosomal protein S19 (RPS19) gene, named circRPS19, which is differentially expressed during chicken ovarian follicle development. Further explorations identified that circRPS19 promotes GCs proliferation and steroid hormone synthesis...
February 23, 2024: Theriogenology
https://read.qxmd.com/read/38412629/long-term-music-stimulating-alleviated-the-inflammatory-responses-caused-by-acute-noise-stress-on-the-immune-organs-of-broilers-by-nf-%C3%AE%C2%BAb-signaling-pathway
#9
REVIEW
Haowen Wang, Yiwen Chai, Yandong Xu, Yulai Wang, Jianhong Li, Runxiang Zhang, Jun Bao
As an environmental enrichment, music can positively influence the immune function, while noise has an adverse effect on the physical and mental health of humans and animals. However, whether music-enriched environments mitigate noise-induced acute stress remains unclear. To investigate the anti-inflammatory effects of music on the immune organs of broiler chickens under conditions of early-life acute noise stress, 140 one-day-old white feather broilers (AA) were randomly divided into four groups: control (C), the music stimulation (M) group, the acute noise stimulation (N) group, the acute noise stimulation followed by music (NM) group...
February 26, 2024: Ecotoxicology and Environmental Safety
https://read.qxmd.com/read/38339068/regulation-of-follicular-development-in-chickens-wif1-modulates-granulosa-cell-proliferation-and-progesterone-synthesis-via-wnt-%C3%AE-catenin-signaling-pathway
#10
JOURNAL ARTICLE
Ruixue Nie, Wenhui Zhang, Haoyu Tian, Junying Li, Yao Ling, Bo Zhang, Hao Zhang, Changxin Wu
Proliferation, apoptosis, and steroid hormone secretion by granulosa cells (GCs) and theca cells (TCs) are essential for maintaining the fate of chicken follicles. Our previous study showed that the Wnt inhibitor factor 1 ( WIF1 ) plays a role in follicle selection. However, the significance of WIF1 in GC- and TC-associated follicular development was not explicitly investigated. This study found that WIF1 expression was strongly downregulated during follicle selection ( p < 0.05) and was significantly higher in GCs than in TCs ( p < 0...
February 1, 2024: International Journal of Molecular Sciences
https://read.qxmd.com/read/38306917/in-vitro-culture-and-tissue-derived-specific-expression-of-melanocytes-from-ovary-of-adult-silky-fowl
#11
JOURNAL ARTICLE
Yurong Tai, Deping Han, Xue Yang, Ganxian Cai, HuaiYu Li, Yuanyuan Zhang, Junying Li, Xuemei Deng
The presence of a significant number of melanocytes in the ovary and follicular membrane of Silky Fowl suggests their potential involvement in follicle development. Currently, there is a lack of available data regarding to the isolation of primary melanocytes from adult chickens. To date, primary melanocytes and their in vitro culture system have been successfully conducted in the peritoneum of chicken embryos. Herein, melanocytes from silky fowl ovaries were isolated and identified. Silky Fowl ovaries were obtained by mixed digestion of 0...
January 20, 2024: Poultry Science
https://read.qxmd.com/read/38288660/foxp2-deficiency-impairs-reproduction-by-modulating-the-hypothalamic-pituitary-gonadal-axis-in-zebrafish
#12
JOURNAL ARTICLE
Maya Wang, Juanjuan Luo, Lu Dai, Meilan Feng, Xiaoqian Cao, Jiannan Zhang, Yiping Wan, Xiaojun Yang, Yajun Wang
FOXP2 was initially characterized as a transcription factor linked to speech and language disorders. Single-cell RNA sequencing (scRNA-seq) reveals that Foxp2 is enriched in the gonadotrope cluster of the pituitary gland and colocalized with the hormones LHB and FSHB in chickens and mice, implying that FOXP2 might be associated with reproduction in vertebrates. Herein, we investigated the roles of foxp2 in reproduction in a Foxp2-deficient zebrafish model. The results indicated that the loss of Foxp2 inhibits courtship behavior in adult male zebrafish...
January 30, 2024: Biology of Reproduction
https://read.qxmd.com/read/38280152/transcriptome-sequencing-and-mass-spectrometry-reveal-genes-involved-in-the-non-mendelian-inheritance-mediated-feather-growth-rate-in-chicken
#13
JOURNAL ARTICLE
Mohan Qiu, Zengrong Zhang, Shiliang Zhu, Siyang Liu, Han Peng, Xia Xiong, Jialei Chen, Chenming Hu, Li Yang, Xiaoyan Song, Bo Xia, Chunlin Yu, Chaowu Yang
The feather growth rate in chickens included early and late feathering. We attempted to characterize the genes and pathways associated with the feather growth rate in chickens that are not in agreement with Mendelian inheritance. Gene expression profiles in the hair follicle tissues of late-feathering cocks (LC), early-feathering cocks (EC), late-feathering hens (LH), and early-feathering hens (EH) were acquired using RNA sequencing (RNA-seq), mass spectrometry (MS), and quantitative reverse transcription PCR (qRT‑PCR)...
January 27, 2024: Biochemical Genetics
https://read.qxmd.com/read/38278859/mirna-profiling-of-chicken-follicles-during-follicular-development
#14
JOURNAL ARTICLE
Zhongxian Xu, Qian Liu, Chunyou Ning, Maosen Yang, Qing Zhu, Diyan Li, Tao Wang, Feng Li
MicroRNAs (miRNAs) play a crucial role as transcription regulators in various aspects of follicular development, including steroidogenesis, ovulation, apoptosis, and gene regulation in poultry. However, there is a paucity of studies examining the specific impact of miRNAs on ovarian granulosa cells (GCs) across multiple grades in laying hens. Consequently, this study aims to investigate the roles of miRNAs in chicken GCs. By constructing miRNA expression profiles of GCs at 10 different time points, encompassing 4 pre-hierarchical, 5 preovulatory, and 1 postovulatory follicles stage, we identified highly expressed miRNAs involved in GC differentiation (miR-148a-3p, miR-143-3p), apoptosis (let7 family, miR-363-3p, miR-30c-5p, etc...
January 26, 2024: Scientific Reports
https://read.qxmd.com/read/38266936/investigations-of-the-function-of-amh-in-granulosa-cells-in-hens
#15
JOURNAL ARTICLE
Laurie Francoeur, Deena M Scoville, Patricia A Johnson
Anti-mullerian hormone (AMH) plays a crucial role in follicle regulation in mammals by preventing premature primordial follicle activation and restricting follicle development through reduction of FSH sensitivity and inhibition of FSH-induced increase of steroidogenic enzymes. AMH is produced by granulosa cells from growing follicles and expression declines at the time of selection in both mammalian and avian species. The role of AMH in chicken granulosa cells remains unclear, as research is complicated because mammalian AMH is not bioactive in chickens and there is a lack of commercially available chicken AMH...
January 22, 2024: General and Comparative Endocrinology
https://read.qxmd.com/read/38254930/dynamic-expression-profile-of-follicles-at-different-stages-in-high-and-low-production-laying-hens
#16
JOURNAL ARTICLE
Lan Yang, Xuewei Fan, Kaiyuan Tian, Sensen Yan, Chunhong Xu, Yixiang Tian, Chengpeng Xiao, Xintao Jia, Junlai Shi, Ying Bai, Wenting Li
Improving the efficiency of hens and extending the egg-laying cycle require maintaining high egg production in the later stages. The ovarian follicles, as the primary functional units for ovarian development and oocyte maturation, play a crucial role in regulating the continuous ovulation of hens. The egg production rate of laying hens is mostly affected by proper follicle growth and ovulation in the ovaries. The objective of this study was to identify the key genes and signaling pathways involved in the development of ovarian follicles in Taihang hens through transcriptome screening...
December 26, 2023: Genes
https://read.qxmd.com/read/38238931/nitrophenols-disrupt-the-expression-and-activity-of-biotransformation-enzymes-cyp3a-and-comt-in-chicken-ovarian-follicles-in-vivo-and-in-vitro
#17
JOURNAL ARTICLE
Anna Kozubek, Dorota Katarzyńska-Banasik, Kinga Kowalik, Agnieszka K Grzegorzewska, Anna Hrabia, Andrzej Sechman
Nitrophenols are environmental pollutants and xenobiotics, the main sources of which are diesel exhaust fumes and pesticides. The biotransformation processes that take place in the liver are defence mechanisms against xenobiotics, such as nitrophenols. Our previous study showed that the chicken ovary is an additional xenobiotic detoxification place and that nitrophenols disrupt steroidogenesis in chicken ovarian follicles. Therefore, the present study aimed to determine the in vivo and in vitro effects of 4-nitrophenol (PNP) and 3-methyl-4-nitrophenol (PNMC) on the expression and activity of phase I (CYP3A) and phase II (COMT) biotransformation enzymes in chicken ovary...
January 18, 2024: Journal of Applied Toxicology: JAT
https://read.qxmd.com/read/38200904/transcriptome-and-weighted-gene-co-expression-network-analysis-for-feather-follicle-density-in-a-chinese-indigenous-breed
#18
JOURNAL ARTICLE
Jiangxian Wang, Wei Wei, Chaohui Xing, Hao Wang, Meng Liu, Jinmei Xu, Xinxin He, Yanan Liu, Xing Guo, Runshen Jiang
Feather follicle density plays an important role in appealing to consumers' first impressions when making purchasing decisions. However, the molecular network that contributes to this trait remains largely unknown. The aim of this study was to perform transcriptome and weighted gene co-expression network analyses to determine the candidate genes relating to feather follicle density in Wannan male chickens. In total, five hundred one-day-old Wannan male chickens were kept in a conventional cage system. Feather follicle density was recorded for each bird at 12 weeks of age...
January 4, 2024: Animals: An Open Access Journal From MDPI
https://read.qxmd.com/read/38200750/transcriptome-analysis-of-granulosa-cells-reveals-regulatory-mechanisms-related-to-chicken-follicle-development
#19
JOURNAL ARTICLE
Xubin Du, Qizhao Zhu, Huifang Pian, Xiaolong Yang, Dong Zhao, Xinyue Wu, Jiawen He, Debing Yu
In this study, we aimed to better understand the difference between the functions of the two types of granulosa cells and sought to discover more key genes involved in follicle development and follicle selection. Herein, we separately collected pre-hierarchical follicle granulosa cells (PHGCs) and preovulatory follicle granulosa cells (POGCs) for RNA extraction; the transcriptomes of the two groups were compared via RNA-seq. A total of 5273 differentially expressed genes (DEGs) were identified between the PHGCs and POGCs; 2797 genes were up-regulated and 2476 were down-regulated in the PHGCs compared with the POGCs...
December 20, 2023: Animals: An Open Access Journal From MDPI
https://read.qxmd.com/read/38194424/differential-expression-of-asip-transcripts-reveals-genetic-mechanism-underpinning-black-tail-independence-from-body-plumage-in-yellow-bodied-chickens
#20
JOURNAL ARTICLE
Xiaotong Zheng, Jianfei Chen, Ruixue Nie, Huanhuan Miao, Ziwei Chen, Jiaheng He, Yinku Xie, Hao Zhang
The genetic foundation of chicken body plumage color has been extensively studied. However, little attention has been paid to the inheritance patterns and molecular mechanisms underlying the formation of distal feather colors (tail and wingtip). Differences in these colors are common; for example, the Chinese Huiyang Beard chicken has black tail feathers, but yellow body plumage. Here, the hybrid offspring of Huiyang Beard and White Leghorn chickens were used to study the inheritance patterns of tail-feather color...
January 9, 2024: Animal Genetics
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