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Associations of genome-wide structural variations with phenotypic differences in cross-bred Eurasian pigs

Journal of animal Science and Biotechnology 2024年第1期15卷 68-87页

作者： Wencheng Zong Jinbu Wang Runze Zhao Naiqi Niu Yanfang Su Ziping Hu Xin Liu Xinhua Hou Ligang Wang Lixian Wang Longchao Zhang State Key Laboratory of animal Biotech Breeding Institute of Animal SciencesChinese Academy of Agricultural SciencesBeijing 100193China college of animal Science Shanxi Agricultural UniversityJinzhong 030801China college of animal Science and Technology Qingdao Agricultural UniversityQingdao 266109China

Background During approximately 10,000 years of domestication and selection,a large number of structural variations(SVs)have emerged in the genome of pig breeds,profoundly influencing their phenotypes and the ability to adapt to the local ***(≥50 bp)are widely distributed in the genome,mainly in the form of insertion(INS),mobile element insertion(MEI),deletion(DEL),duplication(DUP),inversion(INV),and translocation(TRA).While studies have investigated the SVs in pig genomes,genome-wide association studies(GWAS)-based on SVs have been rarely *** Here,we obtained a high-quality SV map containing 123,151 SVs from 15 Large White and 15 Min pigs through integrating the power of several SV tools,with 53.95%of the SVs being reported for the first *** high-quality SVs were used to recover the population genetic structure,confirming the accuracy of *** functional SV loci were then identified based on positional effects and breed ***,GWAS were performed for 36 traits by genotyping the screened potential causal loci in the F2 population according to their corresponding genomic *** identified a large number of loci involved in 8 carcass traits and 6 skeletal traits on chromosome 7,with FKBP5 containing the most significant SV locus for almost all *** addition,we found several significant loci in intramuscular fat,abdominal circumference,heart weight,and liver weight,*** We constructed a high-quality SV map using high-coverage sequencing data and then analyzed them by performing GWAS for 25 carcass traits,7 skeletal traits,and 4 meat quality traits to determine that SVs may affect body size between European and Chinese pig breeds.

关键词： Body size GWAS Pig Skeleton Structural variations

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From common biomass materials to high-performance tissue engineering scaffold: Biomimetic preparation, properties characterization, in vitro and in vivo evaluations

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Journal of Bioresources and Bioproducts 2024年第2期9卷 185-196页

作者： Zongpu Xu Fang He Jing Yu Zhangze Yang Yu Zhu Rong Liao Ruyin Lyu Mei Yang Liangjun Zhu Mingying Yang Institute of Applied Bioresources College of Animal SciencesZhejiang UniversityHangzhou 310058China Key Laboratory of Silkworm and bee Resource Utilization and Innovation of Zhejiang Province Zhejiang UniversityHangzhou 310058China Department of Neurosurgery the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China

Converting common biomass materials to high-performance biomedical products could not only reduce the environmental pressure associated with the large-scale use of synthetic materials,but also increase the economic *** as a very promising candidate has drawn considerable attention owing to its abundant sources and remarkable ***,pure chitosan materials usually exhibit insufficient mechanical properties and excessive swelling ratio,which seriously affected their in vivo stability and integrity when applied as tissue engineering ***,simultaneously improving the mechanical strength and biological compatibility of pure chitosan(CS)scaffolds becomes very ***,inspired by the fiber-reinforced con-struction of natural extracellular matrix and the porous structure of cancellous bone,we built silk microfibers/chitosan composite scaffolds via ice-templating *** biomimetic strategy achieved 500%of mechanical improvement to pure chitosan,and meanwhile still maintaining high porosity(>87%).In addition,the increased roughness of chitosan pore walls by embedded silk microfibers significantly promoted cell adhesion and *** importantly,after subcutaneous implantation in mice for four weeks,the composite scaffold showed greater struc-tural integrity,as well as better collagenation,angiogenesis,and osteogenesis abilities,suggesting its great potential in biomedicine.

关键词： Chitosan Biomimetic strategy Fiber-reinforced composite Mechanical property Biocompatibility

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Combined effects of climate and land-use changes on the alpha and beta functional diversities of terrestrial mammals in China

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Science China Life sciences 2024年第10期67卷 2224-2233页

作者： Chao Zhang Yumei Li Wei Wang Zexuan Gao Hanqing Liu Yonggang Nie Key Laboratory of animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of Sciences college of Life sciences Hebei University University of Chinese Academy of sciences

Climate and land-use changes are predicted to impact biodiversity, threatening ecosystem services and functions. However, their combined effects on the functional diversity of mammals at the regional scale remain unclear, especially at the beta level. Here, we use projected climate and land-use changes in China to investigate their potential effects on the alpha and beta functional diversities of terrestrial mammals under low-and high-emission scenarios. In the current projection, we showed strong positive spatial correlations between functional richness and species richness. Functional evenness(FEve), functional specialization(FSpe), and functional originality(FOri)decreased with species richness, and functional divergence(FDiv) increased first and then plateaued. Functional beta diversity was dominated by its nestedness component, in contrast to the taxonomic facet. Potential changes in species richness are more strongly influenced by land-use change under the low-emission scenario, while under the high-emission scenario, they are more strongly influenced by climate change. Changes in functional richness(FRic) were inconsistent with those in species richness, with a magnitude of decreases greater than predicted from species richness. Moreover, mammal assemblages showed potential functional differentiation(FD) across the country, and the trends exceeded those towards taxonomic differentiation(TD). Our findings help us understand the processes underlying biodiversity responses to global changes on multiple facets and provide new insight for conservation plans.

关键词： climate change land-use change functional diversity terrestrial mammals biodiversity conservation

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circRNA3669 promotes goat endometrial epithelial cells proliferation via miR-26a/RCN2 to activate PI3K/AKT-mTOR and MAPK pathways

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Journal of Integrative Agriculture 2024年第3期23卷 960-974页

作者： Xiaorui Liu Jiuzeng Cui Mengyao Wei Xiaofei Wang Yuexia Liu Zhongshi Zhu Min Zhou Gui Ba Langda Suo Yuxuan Song Lei Zhang Division of Laboratory Safety and Services Northwest A&F UniversityYangling 712100China college of animal Science and Technology Northwest A&F UniversityYangling 712100China Institute of animal sciences Tibet Academy of Agricultural and Animal Husbandry SciencesLhasa 850009China

The development of receptive endometrium(RE) from pre-receptive endometrium(PE) for successful embryo implantation is a complex dynamic process in which the morphology and physiological states of the endometrial epithelium undergo a series of significant changes, including cell proliferation and apoptosis. However, the molecular mechanisms are not yet fully understood. In this study, a higher circRNA3669 level was observed in PE than in RE of goats. Functional assays revealed that this overexpression promoted the proliferation of goat endometrial epithelial cells(GEECs) by activating the expression of genes related to the PI3K/AKT-mTOR and MAPK pathways,thereby inhibiting apoptosis in vitro. Furthermore, circRNA3669 functioned as a competing endogenous RNA(ceRNA) to upregulate Reticulocalbin-2(RCN2) expression at the post-transcriptional level by interacting with and downregulating miR-26a in GEECs. In addition, RCN2, which is highly expressed in the PE of goats, was found to be regulated by β-estradiol(E2) and progesterone(P4). Our results demonstrated that RCN2 also affected the key proteins PI3K, AKT, mTOR, JNK, and P38 in the PI3K/AKT-mTOR and MAPK pathways, thereby facilitating GEECs proliferation and suppressing their apoptosis in vitro. Collectively, we constructed a new circRNA3669-miR-26aRCN2 regulatory network in GEECs, which further provides strong evidence that circRNA could potentially play a crucial regulatory role in the development of RE in goats.

关键词： circRNA3669 RCN2 miR-26a goat endometrial epithelial cells(GEECs) proliferation

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Dynamic transcriptome profiles and novel markers in bovine spermatogenesis revealed by single-cell sequencing

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Journal of Integrative Agriculture 2024年第7期23卷 2362-2378页

作者： Yuan Gao Fuxia Bai Qi Zhang Xiaoya An Zhaofei Wang Chuzhao Lei Ruihua Dang Key Laboratory of animal Genetics Breeding and Reproduction of Shaanxi ProvinceCollege of Animal Science and TechnologyNorthwest A&F UniversityYangling 712100China college of Life sciences Northwestern Polytechnical UniversityXi’an 710072China

Testicular development is an important biological process in male and requires interaction between the male germ cells and somatic ***,the mechanisms of testicular development in livestock,particularly in cattle,are poorly ***,cellular heterogeneity hinders the profiling of different cell types at different developmental *** this study,we first performed a single-cell transcriptomic study of the bovine testis development during puberty by using 10×genomics single-cell RNA sequencing(scRNA-seq).By collecting the scRNA-seq data from 11,083 cells from prepubertal and pubertal bovine testes,a high-resolution scRNA-seq atlas was described,identifying 9 somatic and 13 spermatogenic *** also distinguished several stage-specific marker genes for bovine germ cells and somatic cells,such as GRAF2 and MORC1 for SSC(spermatogonial stem cells),HJURP and TCF19 for differentiating spermatogonia,ARSE for immature Sertoli,CLEC12B for mature Sertoli,LOC112441470 for *** conclusion,we have examined the transcription levels and constructed the single-cell developmental maps of germ cells and somatic cells during testicular development in Angus *** datasets provided new insights into spermatogenesis and testicular somatic cell development in cattle.

关键词： scRNA-seq cattle spermatogenesis testis development

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A preliminary study on life history of marine red alga Stylonema alsidii(Zandardini)Drew *** Zheng et Li

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Journal of Oceanology and Limnology 2024年第3期42卷 915-922页

作者： Bingxin HUANG Yao ZHANG Yue CHU Youxuan GUO Junxia LIANG Jianan QIN Lanping DING Tianjin Key Laboratory of animal and Plant Resistance College of Life SciencesTianjin Normal UniversityTianjin 300387China

Stylonema alsidii(Zandardini)Drew *** Zheng et Li is a common species in the genus Stylonema,but there are limited reports on morphological taxonomy and a lack of studies on life history and the regulation of early *** early development,discoid formation,and erect thallus growth of Stylonema alsidii *** were observed under laboratory *** addition,the influence of main environmental factors such as temperature and light intensity on its development was briefly studied,and various stages of its life history were *** result shows:(1)there are two reproductive modes:asexual reproduction and sexual reproduction;(2)the morphology of this species varies in different degrees under laboratory culture conditions;(3)sexual reproduction and asexual reproduction can coexist under suitable *** pathways of life history were inferred from experimental *** sporophytes form mature gametophytes by producing initially isolated or initially attached monospore,and mature gametophytes form mature sporophytes by fertilization of eggs and *** sexual and asexual reproduction processes of Stylonema alsidii *** were reported for the first time,and this is also the first report on sexual reproduction in the genus Stylonema.

关键词： Stylonema alsidii(Zandardini)Drew f.ramosum Zheng et Li life history environmental factor asexual reproduction sexual reproduction

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The early life immune dynamics and cellular drivers at single-cell resolution in lamb forestomachs and abomasum

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Journal of animal Science and Biotechnology 2024年第1期15卷 218-235页

作者： Kailang Huang Bin Yang Zebang Xu Hongwei Chen Jiakun Wang Institute of Dairy Science College of Animal SciencesZhejiang UniversityHangzhou 310058China Key Laboratory of Molecular animal Nutrition Ministry of EducationZhejiang UniversityHangzhou 310058China

Background Four-chambered stomach including the forestomachs(rumen,reticulum,and omasum)and abomasum allows ruminants convert plant fiber into high-quality animal *** early development of this four-chambered stomach is crucial for the health and well-being of young ruminants,especially the immune ***,the dynamics of immune development are poorly *** We investigated the early gene expression patterns across the four-chambered stomach in Hu sheep,at 5,10,15,and 25 days of *** found that forestomachs share similar gene expression patterns,all four stomachs underwent widespread activation of both innate and adaptive immune responses from d 5 to 25,whereas the metabolic function were significantly downregulated with *** constructed a cell landscape of the four-chambered stomach using single-cell *** transcriptomic and single-cell transcriptomic analyses revealed that the immune-associated module hub genes were highly expressed in T cells,monocytes and macrophages,as well as the defense-associated module hub genes were highly expressed in endothelial cells in the four-stomach ***,the non-immune cells such as epithelial cells play key roles in immune *** communication analysis predicted that in addition to immune cells,non-immune cells recruit immune cells through macrophage migration inhibitory factor signaling in the *** Our results demonstrate that the immune and defense responses of four stomachs are quickly developing with age in lamb's early *** also identified the gene expression patterns and functional cells associated with immune ***,we identified some key receptors and signaling involved in immune *** results help to understand the early life immune development at single-cell resolution,which has implications to develop nutritional manipulation and health management strategies based on specific targets including key

关键词： Early life Forestomachs Four-chambered stomach Immune cells Immune system maturation MIF signaling Rumen Ruminant development Single-cell transcriptomic sequencing

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Fermented calcium butyrate supplementation in post-peak laying hens improved ovarian function and tibia quality through the“gut-bone” axis

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animal Nutrition 2024年第1期16卷 350-362页

作者： Huaiyong Zhang Yongshuai Wang Yilu Wang Bin Wei Leilei Wang Minh Tu Nguyen Xiangyun Lv Yanqun Huang Wen Chen college of animal Science and Technology Key Laboratory of Animal Biochemistry and NutritionMinistry of AgricultureHenan Agricultural University Laboratory for animal Nutrition and animal Product Quality Department of Animal Sciences and Aquatic EcologyGhent University Department of Agriculture and Forestry Hue University Charoen Pokphand Group Co. Ltd.

The compromised egg quality and leg abnormality during the end of the laying cycle(after 40 weeks)have been leading to poor animal welfare and substantial economic losses. Therefore, the effects of fermented calcium(Ca) butyrate, produced by fermentation by Clostridium butyricum, on production,eggshell quality, and tibial property of hens were explored. A total of 192 Hy-line brown laying hens at50-week-old were assigned to a basal diet or the basal diet with 300 mg/kg of the fermented Ca butyrate from 50 to 58 weeks of age. Each treatment had 6 replicates with 16 hens each. The diet supplemented with 300 mg/kg fermented Ca butyrate notably increased egg weight, ovarian follicle number, and eggshell strength(P = 0.072) as compared to the basal diet, which were associated with cytokine secretion, toll-like receptor signaling pathways, and intestinal immunity based on the RNA-seq data from the granulosa. Dietary Ca butyrate inclusion decreased the expression of ileal tumor necrosis factor-alpha and serum pro-inflammatory cytokine concentration, as well as increased the content of serum immunoglobulin A when compared to the basal diet(both P 0.05). In addition, the diet with fermented Ca butyrate reduced the number of osteoclasts in the proximal tibia and the level of C-terminal cross-linked telopeptide of type I collagen, a bone resorption marker(P < 0.05), whereas it tended to increase the concentration of the procollagen type I N-terminal propeptide that reflects bone formation marker in serum. Moreover, the layers fed fermented Ca butyrate diets possessed higher(P < 0.05) bone area and trabecular number of the proximal tibia, yield load, and ultimate load than those that consumed basal diets. Collectively, dietary fermented Ca butyrate supplementa

关键词： Fermented Ca butyrate Ovarian property Tibia metabolism Layer

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Coated sodium butyrate ameliorates high‑energy and low‑protein diet induced hepatic dysfunction via modulating mitochondrial dynamics, autophagy and apoptosis in laying hens

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Journal of animal Science and Biotechnology 2024年第3期15卷 1190-1206页

作者： Sasa Miao Tianming Mu Ru Li Yan Li Wenyan Zhao Jiankui Li Xinyang Dong Xiaoting Zou Key Laboratory of animal Feed and Nutrition of Zhejiang Province Key Laboratory of Animal Nutrition and Feed Science(Eastern of China)Ministry of Agriculture and Rural AffairsThe Key Laboratory of Molecular Animal NutritionMinistry of EducationCollege of Animal SciencesZhejiang UniversityHangzhou 310058China.

Background Fatty liver hemorrhagic syndrome(FLHS),a fatty liver disease in laying hens,poses a grave threat to the layer industry,stemming from its ability to trigger an alarming plummet in egg production and usher in acute mortality among laying *** evidence suggests that the onset and progression of fatty liver was closely related to mitochondria *** butyrate was demonstrated to modulate hepatic lipid metabolism,alle-viate oxidative stress and improve mitochondrial dysfunction in vitro and mice ***,there is limited existing research on coated sodium butyrate(CSB)to prevent FLHS in laying hens,and whether and how CSB exerts the anti-FLHS effect still needs to be *** this experiment,the FLHS model was induced by administering a high-energy low-protein(HELP)diet in laying *** objective was to investigate the effects of CSB on alleviating FLHS with a focus on the role of CSB in modulating mitochondrial *** A total of 288 healthy 28-week-old Huafeng laying hens were arbitrarily allocated into 4 groups with 6 replicates each,namely,the CON group(normal diet),HELP group(HELP diet),CH500 group(500 mg/kg CSB added to HELP diet)and CH750 group(750 mg/kg CSB added to HELP diet).The duration of the trial encompassed a period of 10 *** The result revealed that CSB ameliorated the HELP-induced FLHS by improving hepatic steatosis and patho-logical damage,reducing the gene levels of fatty acid synthesis,and promoting the mRNA levels of key enzymes of fatty acid *** reduced oxidative stress induced by the HELP diet,upregulated the activity of GSH-Px and SOD,and decreased the content of MDA and *** also mitigated the HELP diet-induced inflammatory response by blocking TNF-α,IL-1β,and F4/*** addition,dietary CSB supplementation attenuated HELP-induced activation of the mitochondrial unfolded protein response(UPRmt),mitochondrial damage,and decline of ATPase *** diet decreased th

关键词： Autophagy Coated sodium butyrate Laying hens Lipid metabolism Mitochondria

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Molybdenum and cadmium co-induce necroptosis through Th1/Th2 imbalance-mediated endoplasmic reticulum stress in duck ovaries

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Journal of Environmental sciences 2024年第8期142卷 92-102页

作者： Ting Cui Xueyan Dai Huiling Guo Dianyun Wang Bingyan Huang Wenjing Pu Xuesheng Chu Caiying Zhang Jiangxi Provincial Key Laboratory for animal Health Institute of Animal Population HealthCollege of Animal Science and TechnologyJiangxi Agricultural UniversityNanchang 330045China

Cadmium(Cd)and excess molybdenum(Mo)pose serious threats to animal *** previous study has determined that Cd and/or Mo exposure can cause ovarian damage of ducks,while the specific mechanism is still *** further investigate the toxic mechanism of Cd and Mo co-exposure in the ovary,forty 8-day-old female ducks were randomly allocated into four groups for 16 weeks,and the doses of Cd and Mo in basic diet per kg were as follows:control group,Mo group(100 mg Mo),Cd group(4 mg Cd),and Mo+Cd group(100 mg Mo+4 mg Cd).Cadmium sulfate 8/3-hydrate(CdSO_(4)·8/3H_(2)O)and hexaammonium molybdate((NH_(4))_(6)Mo_(7)O_(24)·4H_(2)O)were the origins of Cd and Mo,*** the 16th week of the experiment,all ovary tissues were collected for the detection of related *** data indicated that Mo and/or Cd induced trace element disorders and Th1/Th2 balance to divert toward Th1 in the ovary,which activated endoplasmic reticulum(ER)stress and then provoked necroptosis through triggering RIPK1/RIPK3/MLKL signaling pathway,and eventually caused ovarian pathological injuries and necroptosis *** alterations of above indicators were most apparent in the joint *** all,this research illustrates that Mo and/or Cd exposure can initiate necroptosis through Th1/Th2 imbalance-modulated ER stress in duck ovaries,and Mo and Cd combined exposure aggravates ovarian *** research explores the molecular mechanism of necroptosis caused by Mo and/or Cd,which reveals that ER stress attenuation may be a therapeutic target to alleviate necroptosis.

关键词： Molybdenum Cadmium Th1/Th2 imbalance Endoplasmic reticulum stress Necroptosis Ovary

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