Gene.
Publisher:
Elsevier/North-Holland,
Frequency: 40 no. a year,
Country: Netherlands
Language: English
Start Year:1976 -
ISSN:
0378-1119 (Print)
1879-0038 (Electronic)
0378-1119 (Linking)
1879-0038 (Electronic)
0378-1119 (Linking)
Impact Factor
3.5
2022
| NLM ID: | 7706761 |
| (DNLM): | G03740000(s) |
| (OCoLC): | 03424642 |
| Coden: | GENED6 |
| LCCN: | 77643986 |
| Classification: | W1 GE184M |
Selection signatures for high altitude adaptation in livestock: A review. High altitude adapted livestock species (cattle, yak, goat, sheep, and horse) has critical role in the human socioeconomic sphere and acts as good source of animal source products including milk, meat, and leather, among other things. These species sustain production and reproduction even in harsh environments on account of adaptation resulting from continued evolution of beneficial traits. Selection pressure leads to various adaptive strategies in livestock whose footprints are evident at the different genomic sites as the "Selection Signature". Scrutiny of these signatures provides us crucia...
Characterization of a novel multifunctional glycoside hydrolase family in the metagenome-assembled genomes of horse gut. The gut microbiota is a treasure trove of carbohydrate-active enzymes (CAZymes). To explore novel and efficient CAZymes, we analyzed the 4,142 metagenome-assembled genomes (MAGs) of the horse gut microbiota and found the MAG117.bin13 genome (Bacteroides fragilis) contains the highest number of polysaccharide utilisation loci sites (PULs), indicating its high capability for carbohydrate degradation. Bioinformatics analysis indicate that the PULs region of the MAG117.bin13 genome encodes many hypothetical proteins, which are important sources for exploring novel CAZymes. Interestingly, we discov...
Different expression patterns of DNA methyltransferases during horse testis development. DNA methyltransferases (DNMTs) are important epigenetic modification during spermatogenesis. To further evaluate the pattern of DNMTs in horse testes during development, we investigated the expression and localization of DNMT1, DNMT3a and DNMT3b at different time points. The qRT-PCR results showed that DNMT1 expression was maintained in testes tissue from 6-month-old (0.5y) to 2-year-old (2y) of age and decreased after 3-year-old (3y) (P < 0.01). The expression levels of DNMT3a and DNMT3b peaked in testes tissue at 3y (P < 0.01). At 4-year-old (4y), the expression of DNMT3a and DNMT3b was ...
Investigating age-related differences in muscles of Kazakh horse through transcriptome analysis. This study conducted transcriptome sequencing on the skeletal muscles of three different anatomical locations across various growth stages to investigate the impact of ages on crucial candidate genes and molecular mechanisms associated with muscle development in Kazakh horses. Sixteen Kazakh horses were selected, and they were divided into four age groups, each with four biological replicates. Tissue samples from the longest dorsal muscle, abdominal muscle, and diaphragm muscle were collected for analysis. The results revealed differential mRNA expression in the longest dorsal muscle between t...
Transcriptome Identification of Differential Mammary Genes of Kazakh Horses During Early Pregnancy. Kazakh mares have attracted widespread attention with their outstanding lactation traits. Lactation is a complex dynamic process regulated by multiple factors. The extensive application of transcriptome sequencing technology enables researchers to further explore this biological issue. This study selected three pregnant and three non-pregnant Kazakh mares as the research subject. Their mammary glands were taken for transcriptome sequencing. The results show that there are 9 lncRNAs and 122 mRNAs differentially expressed between the two groups. GO enrichment analysis shows that there are 175 mo...
Unravelling of the genetic diversity, population structure, and phylogenetic relationships of the indigenous horse breeds of Pakistan. The current study aimed to evaluate the genetic diversity, level of admixture, and phylogenetic relationship, of the Pakistani horse breeds, along with their morphological characterization. Data for the body measurements showed that Morna horses had the highest values of body height, body length, chest girth, leg length, and head length, whereas the Baluchi horses had the lowest values for these traits. For the genetic diversity 64 animals, 15/breed except for Baluchi(14) and Topras(05), were genotyped by using the 17-plex equine genotyping kit. The AMOVA results showed that 13% of genetic div...
Integrating genome-wide methylation and transcriptome-wide analyses to reveal the genetic mechanism of milk traits in Kazakh horses. Horse Milk has important quantitative characteristics and high economic value. However, the DNA methylation regulators involved in horse milk traits have not been clarified. To explore the important role of genome-wide DNA methylation in regulating equine milk yield, this study systematically investigated the genome-wide DNA methylation profiles of Kazakh horse blood by comparing a high-production group (HP, average daily milk yield of 7.5 kg) and low-production group (LP, average daily milk yield of 3.2 kg) using deep whole-genome bisulfite sequencing. First, both groups showed similar prop...
Trajectory of livestock genomics in South Asia: A comprehensive review. Livestock plays a central role in sustaining human livelihood in South Asia. There are numerous and distinct livestock species in South Asian countries. Several of them have experienced genetic development in recent years due to the application of genomic technologies and effective breeding programs. This review discusses genomic studies on cattle, buffalo, sheep, goat, pig, horse, camel, yak, mithun, and poultry. The frontiers covered in this review are genetic diversity, admixture studies, selection signature research, QTL discovery, genome-wide association studies (GWAS), and genomic select...
Variability analyses of the maternal lineage of horses and donkeys. Equid breeds originating from the Iberian Peninsula and North Africa are believed to have genetically contributed to the formation of breeds and ecotypes from Brazil. The country has numerous breeds and ecotypes of horses and donkeys but there are no extensive studies on maternal genetic diversity and their origins. This study reports the results of the first genetic analysis of all horse and donkey breeds/ecotypes from Brazil based on sequences of the mitochondrial DNA control region (D-loop) whose main objective was to characterize the genetic variation in these animals. These analyses will ...
Complete genome analysis of Glutamicibacter creatinolyticus from mare abscess and comparative genomics provide insight of diversity and adaptation for Glutamicibacter. Bacteria of the genusGlutamicibacterare considered ubiquitous because they can be found in soil, water and air. They have already been isolated from different habitats, including different types of soil, clinical samples, cheese and plants. Glutamicibacter creatinolyticus is a Gram-positive bacterium important to various biotechnological processes, however, as a pathogen it is associated to urinary tract infections and bacteremia. Recently,Glutamicibacter creatinolyticusLGCM 259 was isolated from a mare, which displayed several diffuse subcutaneous nodules with heavy vascularization. In this s...
Chondrogenic expression and DNA methylation patterns in prolonged passages of chondrocyte cell lines of the horse. We investigated the activity of chondrogenic markers and variation of methylation patterns in equine cartilaginous cells cultivated in monolayer. The transcriptional and epigenetic effect of the long-term culture of chondrocytes has been evaluated using several passages of chondrocyte cell-lines derived from equine articular cartilage. Using 3 genes as endogenous control we tested the expression of 7 genes important for different stages of chondrocyte differentiation and maturation. CpG islands in RUNX3 locus were inspected for the evaluation of differential methylation state of passaged cell-...
Genomic structural diversity in Criollo Argentino horses: Analysis of copy number variations. Copy number variation (CNV) has been proved to be widespread in human, animal and plant genomes. Together with single nucleotide polymorphisms (SNPs), CVNs play a key role in genetic diversity. In this study, genome-wide detection of CNVs was performed based on SNP data from 24 Criollo Argentino horses genotyped with the GGP Equine70k array. Overall, 165 CNVs meeting stringent quality control criteria were identified and then aggregated into 87 CNV regions (CNVRs), representing a horse genome coverage of 13.69 Mb. Functional analysis of CNVRs allowed the identification of 337 genes implicate...
Identification and expression analysis of a novel miRNA derived from ERV-E1 LTR in Equus caballus. Horses (Equus caballus) have been domesticated and bred to enhance speed, strength, and agility. Members of the Equus caballus Endogenous Retrovirus (EqERV) family affect several of these abilities in horses. EqERV elements have been integrated in the horse genome during evolution and generate repeat elements such as long terminal repeats (LTRs). LTR sequences are involved in retrovirus replication and play an essential function in post-transcriptional control mechanisms, such as by providing binding sites for microRNAs (miRNAs) or generating miRNA precursors. In this study, we identified a no...
Sequence analysis and expression profiling of the equine ACTN3 gene during exercise in Arabian horses. The ACTN3 gene codes for α-actinin-3, a protein localized in the Z-line in the skeletal muscle. Actinin-3 is critical in anchoring the myofibrillar actin filaments and plays a key role in muscle contraction. ACTN3 (α-actinin-3) cross-links glycogen phosphorylase (GP), which is the key enzyme catalysing glycogen metabolism. The aim of present study was to establish the expression level of the ACTN3 gene (for both isoforms separately and together in the gene expression analysis) in the gluteus medius muscle in order to verify if the α-actinin-3 gene can be related to training intensity in Ara...
Lentiviral vector expression of Klf4 enhances chondrogenesis and reduces hypertrophy in equine chondrocytes. Monolayer expansion of chondrocytes in culture results in the dedifferentiation of chondrocytes with inferior cartilage specific extracellular matrix synthesis and proliferation when compared with its native counterpart. We aimed to enhance chondrocyte proliferation and articular cartilage specific gene expression through ectopic expression of the major pluripotency transcription factors (Oct4, Sox2, Klf4 and c-Myc). We also aimed to provide insights to the modulation of TGFβ receptor mRNA with Klf4 overexpression. Equine chondrocytes pooled from three donors were transduced with lentiviral v...
Transcriptomic hallmarks of bone remodelling revealed by RNA-Seq profiling in blood of Arabian horses during racing training regime. The impact of exercises on young developing organisms is still of interest to researchers. Similarly like Thoroughbreds, Arabian horses competing at the race track. The high percent of lameness and loss of days in training are often the result of weakness in the condition of the musculoskeletal system. The objective of the presented study was to identify by RNA-Seq method, the possible skeletal system originating transcriptomic profile in peripheral blood of Arabian horses undergoing race training. Obtained results showed that one of the most significantly deregulated pathway involved in bone ...
Identification on novel locus of dairy traits of Kazakh horse in Xinjiang. The utility of high-density single nucleotide polymorphism (SNP) data help to accurately identify genomic regions that have undergone positive selection. In this study, the Affymetrix Equine 670 K high-density SNP array was used to genotype Kazakh and Yili horse population. After quality control, 370,227 autosomal SNPs were used to detect selection signatures by using global fixation index (F) and cross-population extended haplotype homozygosity (XP-EHH). The database of Ensemble, Genecards, and NCBI were used to make gene annotation and functional analysis. The results showed that there wer...
Heat shock stress: Profile of differential expression in Corynebacterium pseudotuberculosis biovar Equi. Transcriptome studies on Corynebacterium pseudotuberculosis have recently contributed to the understanding about this microorganism's survival mechanisms in various hostile conditions. The gene expression profile of the C. pseudotuberculosis strain 1002 (Ovis biovar), has revealed genes that are possible candidates responsible for its maintenance in adverse environments, such as those found in the host. In another strain of this bacterium, 258 (Equi biovar), a high temperature condition was simulated, in order to verify which genes are responsible for promoting the persistence of the bacterium...
HEpD: a database describing epigenetic differences between Thoroughbred and Jeju horses. With the advent of next-generation sequencing technology, genome-wide maps of DNA methylation are now available. The Thoroughbred horse is bred for racing, while the Jeju horse is a traditional Korean horse bred for racing or food. The methylation profiles of equine organs may provide genomic clues underlying their athletic traits. We have developed a database to elucidate genome-wide DNA methylation patterns of the cerebrum, lung, heart, and skeletal muscle from Thoroughbred and Jeju horses. Using MeDIP-Seq, our database provides information regarding significantly enriched methylated regions...
Transcriptional expression changes of glucose metabolism genes after exercise in thoroughbred horses. Physical exercise induces gene expression changes that trigger glucose metabolism pathways in organisms. In the present study, we monitored the expression levels of LDHA (lactate dehydrogenase) and GYS1 (glycogen synthase 1) in the blood, to confirm the roles of these genes in exercise physiology. LDHA and GYS1 are related to glucose metabolism and fatigue recovery, and these processes could elicit economically important traits in racehorses. We collected blood samples from three retired thoroughbred racehorses, pre-exercise and immediately after 30 min of exercise. We extracted total RNA and ...
Sequence analysis of the equine ACTN3 gene in Australian horse breeds. The sarcomeric α-actinins, encoded by the genes ACTN2 and ACTN3, are major structural components of the Z-line and have high sequence similarity. α-Actinin-2 is present in all skeletal muscle fibres, while α-actinin-3 has developed specialized expression in only type 2 (fast, glycolytic) fibres. A common single nucleotide polymorphism (SNP) in the human ACTN3 gene (R577X) has been found to influence muscle performance in elite athletes and the normal population. For this reason, equine ACTN3 (eACTN3) is considered to be a possible candidate that may influence horse performance. In this stud...
Single nucleotide polymorphisms of myostatin gene in Chinese domestic horses. The myostatin gene (MSTN) is a genetic determinant of skeletal muscle growth. Single nucleotide polymorphisms (SNP) in MSTN are of importance due to their strong associations with horse racing performances. In this study, we screened the SNPs in MSTN gene in 514 horses from 15 Chinese horse breeds. Six SNPs (g.26T>C, g.156T>C, g.587A>G, g.598C>T, g.1485C>T, g.2115A>G) in MSTN gene were detected by sequencing and genotyped using PCR-RFLP method. The g.587A>G and g.598C>T residing in the 5'UTR region were novel SNPs identified by this study. The g.2115A>G which have pr...
Microsatellite markers based genetic diversity and bottleneck studies in Zanskari pony. Genetic diversity in Zanskari pony breed was evaluated at 48 microsatellite loci using fifty adult, healthy and unrelated animals. Allele frequency data was used to detect genetic diversity and bottleneck. The estimated average number of alleles (±s.e.) was 8.5208±2.5010 with a total of 409 alleles. A high level of genetic diversity within this breed was observed in terms of number of alleles, observed heterozygosity (0.6763±0.1704), expected Leven's heterozygosity (0.7724±0.795), expected Nei's heterozygosity (0.7644±0.0787) and polymorphism information content (>0.5). In-breeding coe...
Identification of ORF sequences and exercise-induced expression change in thoroughbred horse OXCT1 gene. In the mitochondrial matrix, the OXCT1 gene catalyzes the reversible transfer of coenzyme A from succinyl-CoA to acetoacetate in a reaction related to energy production from ketone bodies. Here, horse OXCT1 gene containing coenzyme A transferase domain was identified in the transcriptome analysis of cDNAs derived from skeletal muscles. Horse OXCT1 gene consisted of 1761 [corrected] nucleotide sequences with an open reading frame of 1560 nucleotides encoding a protein of 520 putative amino acid residues.The number of non-synonymous substitutions was lower than the number of synonymous substitut...
Genomic structure, polymorphism and expression of the horse alpha-actinin-3 gene. Gene characterization is an important feature for genome annotation and more particularly for candidate genes that could be selected in domestic species. Associations between an alpha-actinin-3 gene polymorphism and muscle performance were reported in humans involving a nonsense mutation (R577X) and in mice after inactivation of the gene. Here, we characterized the equine alpha-actinin-3 (ACTN3) gene by sequencing and transcript analysis. The cDNA was determined to be 3.47 kb in length with an open reading frame of 2709 bp expectedly encoding a protein 902 amino acids long. The ACTN3 gene is 1...
Sequence variations and two levels of MCT1 and CD147 expression in red blood cells and gluteus muscle of horses. MCT1-CD147 complex is the prime lactate transporter in mammalian plasma membranes. In equine red blood cells (RBCs), activity of the complex and expression of MCT1 and CD147 is bimodal; high in 70% and low in 30%. We studied whether sequence variations contribute to the bimodal expression of MCT1 and CD147. Samples of blood and cremaster muscle were collected in connection of castration from 24 horses. Additional gluteus muscle samples were collected from 15 Standardbreds of which seven were known to express low amounts of CD147 in RBCs. The cDNA of MCT1 and CD147 together with a promoter regi...
Molecular characterization and expression pattern of the equine lactate dehydrogenase A and B genes. The species-specific properties of LDH isozymes are essentially determined by M (muscle) and H (heart) subunit proteins encoded by the LDHA and LDHB genes, respectively. In the present study, we molecularly characterized the full-length equine lactate dehydrogenase A (eLDHA) and B (eLDHB) cDNAs. The eLDHA cDNA consisted of a 999-bp open reading frame (ORF), while the eLDHB and newly acquired bat LDHB consisted of a 1002-bp ORF, which is 3 bp shorter than the LDHB ORF of other registered mammals. The alignment of amino acid sequences showed that eLDHA acquired positively charged His 88 and 226,...
Novel interferon delta genes in mammals: cloning of one gene from the sheep, two genes expressed by the horse conceptus and discovery of related sequences in several taxa by genomic database screening. Interferons (IFNs) are cytokines of vertebrates with many biological effects including antiviral, immunoregulatory and antiproliferative activities. Among them, mammalian type I IFNs represents a large family of related proteins, mainly virus-inducible, divided in 10 distinct subfamilies named alpha, beta, omega, delta, epsilon, alphaomega, nu, tau, kappa and zeta (or Limitin). Some type I IFN subfamilies are physiologically expressed by the conceptus during early pregnancy in ungulates. This is the case in ruminants with IFN-tau (which triggers the maintenance of the maternal corpus luteum du...
Molecular characterization and chromosomal assignment of equine cartilage derived retinoic acid sensitive protein (CD-RAP)/melanoma inhibitory activity (MIA). Cartilage-derived retinoic acid sensitive protein (CD-RAP) also known as melanoma inhibitory activity (MIA) has already been established as a marker for chondrocyte differentiation and a number of cancerous conditions in humans. Studies have also shown that CD-RAP/MIA is a potential marker of joint disease. The objective of this study was to characterize the equine CD-RAP/MIA gene and thus make it available as a marker in cartilage research and clinical studies. Gene analysis revealed that the equine gene (GenBank accession no. EF679787) consists of four exons and three introns, and the homolo...
Characterization of the equine glycogen debranching enzyme gene (AGL): Genomic and cDNA structure, localization, polymorphism and expression. Glycogen debranching enzyme (AGL) is a multifunctional enzyme acting in the glycogen degradation pathway. In humans, the AGL activity deficiency causes a type III glycogen storage disease (Cori-Forbes disease). One particularity of AGL gene expression lies in the multiple alternative splicing in its 5' region. The AGL gene was localized on ECA5q14-q15. The sequence of the equine cDNA was determined to be 7.5 kb in length with an open reading frame of 4602 bp. The gene is 69 kb long and contains 35 exons. The equine AGL gene has an ubiquitous expression and presents five tissue-dependent cDNA v...