scholarly journals Poplar protease inhibitor expression differs in an herbivore specific manner

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Franziska Eberl ◽  
Thomas Fabisch ◽  
Katrin Luck ◽  
Tobias G. Köllner ◽  
Heiko Vogel ◽  
...  
Keyword(s):  
Protease Inhibitors ◽  
Molecular Mechanisms ◽  
Expression Patterns ◽  
Transcriptional Level ◽  
Species Identity ◽  
Defense Proteins ◽  
Woody Perennials ◽  
Cdna Sequences ◽  
Black Poplar ◽  
Leaf Area Loss

Abstract Background Protease inhibitors are defense proteins widely distributed in the plant kingdom. By reducing the activity of digestive enzymes in insect guts, they reduce the availability of nutrients and thus impair the growth and development of the attacking herbivore. One well-characterized class of protease inhibitors are Kunitz-type trypsin inhibitors (KTIs), which have been described in various plant species, including Populus spp. Long-lived woody perennials like poplar trees encounter a huge diversity of herbivores, but the specificity of tree defenses towards different herbivore species is hardly studied. We therefore aimed to investigate the induction of KTIs in black poplar (P. nigra) leaves upon herbivory by three different chewing herbivores, Lymantria dispar and Amata mogadorensis caterpillars, and Phratora vulgatissima beetles. Results We identified and generated full-length cDNA sequences of 17 KTIs that are upregulated upon herbivory in black poplar leaves, and analyzed the expression patterns of the eight most up-regulated KTIs via qRT-PCR. We found that beetles elicited higher transcriptional induction of KTIs than caterpillars, and that both caterpillar species induced similar KTI expression levels. Furthermore, KTI expression strongly correlated with the trypsin-inhibiting activity in the herbivore-damaged leaves, but was not dependent on damage severity, i.e. leaf area loss, for most of the genes. Conclusions We conclude that the induction of KTIs in black poplar is controlled at the transcriptional level in a threshold-based manner and is strongly influenced by the species identity of the herbivore. However, the underlying molecular mechanisms and ecological consequences of these patterns remain to be investigated.

scholarly journals MicroRNAs as Potential Biomarkers in Atherosclerosis

2019 ◽  
Vol 20 (22) ◽  
pp. 5547 ◽  
Author(s):  
Alexey Churov ◽  
Volha Summerhill ◽  
Andrey Grechko ◽  
Varvara Orekhova ◽  
Alexander Orekhov
Keyword(s):  
Molecular Mechanisms ◽  
Expression Patterns ◽  
Inflammatory Cells ◽  
Cellular Protein ◽  
Cholesterol Homeostasis ◽  
Transcriptional Level ◽  
High Morbidity ◽  
Industrialized Countries ◽  
Rna Molecules ◽  
Expression Of Genes

Atherosclerosis is a complex multifactorial disease that, despite advances in lifestyle management and drug therapy, remains to be the major cause of high morbidity and mortality rates from cardiovascular diseases (CVDs) in industrialized countries. Therefore, there is a great need in reliable diagnostic/prognostic biomarkers and effective treatment alternatives to reduce its burden. It was established that microRNAs (miRNAs/miRs), a class of non-coding single-stranded RNA molecules, can regulate the expression of genes at the post-transcriptional level and, accordingly, coordinate the cellular protein expression. Thus, they are involved not only in cell-specific physiological functions but also in the cellular and molecular mechanisms of human pathologies, including atherosclerosis. MiRNAs may be significant in the dysregulation that affects endothelial integrity, the function of vascular smooth muscle and inflammatory cells, and cellular cholesterol homeostasis that drives the initiation and growth of an atherosclerotic plaque. Besides, distinct expression patterns of several miRNAs are attributed to atherosclerotic and cardiovascular patients. In this article, the evidence indicating the multiple critical roles of miRNAs and their relevant molecular mechanisms related to atherosclerosis development and progression was reviewed. Moreover, the effects of miRNAs on atherosclerosis enabled to exploit them as novel diagnostic biomarkers and therapeutic targets that may lead to better management of atherosclerosis and CVDs.

scholarly journals Effects of Cutting, Pruning, and Grafting on the Expression of Age-Related Genes in Larix kaempferi

Forests ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 218
Author(s):  
Yao Zhang ◽  
Qiao-Lu Zang ◽  
Li-Wang Qi ◽  
Su-Ying Han ◽  
Wan-Feng Li
Keyword(s):  
Gene Expression ◽  
Transcription Factors ◽  
Regular Expression ◽  
Molecular Mechanisms ◽  
Expression Patterns ◽  
Reproductive Development ◽  
Larix Kaempferi ◽  
Clonal Forestry ◽  
Cdna Sequences ◽  
Age Related

Grafting, cutting, and pruning are important horticultural techniques widely used in the establishment of clonal forestry. After the application of these techniques, some properties of the plants change, however, the underlying molecular mechanisms are still unclear. In our previous study, 27 age-related transcripts were found to be expressed differentially between the juvenile vegetative (1- and 2-year-old) and adult reproductive (25- and 50-year-old) phases of Larix kaempferi. Here, we re-analyzed the 27 age-related transcripts, cloned their full-length cDNA sequences, and measured their responses to grafting, cutting, and pruning. After sequence analysis and cloning, 20 transcription factors were obtained and annotated, most of which were associated with reproductive development, and six (LaAGL2-1, LaAGL2-2, LaAGL2-3, LaSOC1-1, LaAGL11, and LaAP2-2) showed regular expression patterns with L. kaempferi aging. Based on the expression patterns of these transcription factors in L. kaempferi trees subjected to grafting, cutting, and pruning, we concluded that (1) cutting and pruning rejuvenate the plants and change their expression, and the effects of cutting on gene expression are detectable within 14 years, although the cutting seedlings are still maturing during these years; (2) within three months after grafting, the rootstock is more sensitive to grafting than the scion and readily becomes mature with the effect of the scion, while the scion is not readily rejuvenated by the effect of the rootstock; and (3) LaAGL2-2 and LaAGL2-3 are more sensitive to grafting, while LaAP2-2 is impervious to it. These findings not only provide potential molecular markers to assess the state of plants but also aid in studies of the molecular mechanisms of rejuvenation.

scholarly journals Cloning, sequencing, and expression analysis of 32 NAC transcription factors (MdNAC) in apple

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8249
Author(s):  
Huifeng Li ◽  
Kun Ran ◽  
Qinglong Dong ◽  
Qiang Zhao ◽  
Song Shi
Keyword(s):  
Transcription Factors ◽  
Expression Patterns ◽  
Transcriptional Level ◽  
Rna Seq ◽  
Expression Levels ◽  
Nac Transcription Factors ◽  
Cdna Sequences ◽  
Link Type ◽  
Growth Development ◽  
Different Tissues

Background NAC transcription factors play important roles in the regulation of plant growth, development, abiotic and biotic stress responses. The transcriptional level of MdNACs in different tissues and under various biotic and abiotic stress treatments was determined to provide a solid foundation for studying the function of MdNACs. Methods Thirty-two full-length cDNA sequences of Md NACs were isolated by homologous comparison and RT-PCR confirmation, and the obtained cDNA sequences and the deduced amino acid sequences were analyzed with bioinformatics methods. The prediction of subcellular locations of MdNAC proteins was performed using CELLO v.2.5, PSORT, and SoftBerry ProtComp 9.0. Expression levels of MdNACs were detected in 16 different tissues using an array. Expression patterns of MdNACs were detected in response to Alternaria alternata apple pathotype (AAAP) infection using RNA-seq, and the expression of MdNACs was analyzed under NaCl and mannitol treatments using RT-qPCR. Results The sequencing results produced 32 cDNAs (designated as MdNAC24-39, MdNAC54-65, and MdNAC67-70 with GenBank accession No. MG099861–MG099876, MG099891–MG099902, and MG099904–MG099907, respectively). Phylogenetic analysis revealed that MdNAC34 belonged to the ATAF group, MdNAC63 belonged to the AtNAC3 group, MdNAC24, MdNAC26-30, MdNAC32-33, MdNAC35, MdNAC37-39, MdNAC56-57, MdNAC59-62, MdNAC64-65, and MdNAC67-70 belonged to the NAM group, and MdNAC25, MdNAC36, MdNAC54-55, and MdNAC58 belonged to the VND group. Predictions of subcellular localization showed that MdNAC24-27, MdNAC29-30, MdNAC33-37, MdNAC39, MdNAC54-65, and MdNAC67-70 proteins were located in the nucleus, MdNAC28 proteins were located in the cytoplasm, MdNAC31-32 proteins were located in the nucleus and cytoplasm, and MdNAC38 proteins were located in the nucleus and plasma membrane. Array results indicated that 32 MdNACs were expressed in all examined tissues at various expression levels. RNA-seq results showed that expression levels of MdNAC26-28, MdNAC33-34, MdNAC60, MdNAC62-65, and MdNAC68 were induced, but MdNAC24, MdNAC32, and MdNAC58 were down-regulated in response to AAAP infection. Under salt treatment, MdNAC24, MdNAC27, MdNAC29, MdNAC34, MdNAC37, MdNAC39, MdNAC54, MdNAC59, and MdNAC63 transcription levels were induced. Under mannitol treatment, MdNAC32 and MdNAC54 transcription levels were induced, but MdNAC24, MdNAC28, MdNAC30, MdNAC33, MdNAC35, MdNAC37, MdNAC55, MdNAC56, MdNAC58, and MdNAC59 were down-regulated. Taken together, the results indicated that the cloned MdNAC genes were expressed constitutively in all examined tissues. These genes were up-regulated or down-regulated in response to AAAP infection and to salt or mannitol, which suggested they may be involved in the regulation of growth, development, and stress response in apple.

scholarly journals Isolation, sequencing, and expression analysis of 30 AP2/ERF transcription factors in apple

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8391
Author(s):  
Huifeng Li ◽  
Qinglong Dong ◽  
Qiang Zhao ◽  
Song Shi ◽  
Kun Ran
Keyword(s):  
Transcription Factors ◽  
Stress Response ◽  
Plant Growth ◽  
Expression Patterns ◽  
Transcriptional Level ◽  
Rna Seq ◽  
Cdna Sequences ◽  
Growth Development ◽  
Erf Transcription Factors ◽  
Different Tissues

Background AP2/ERF transcription factors are involved in the regulation of plant growth, development, and stress responses. Our research objective was to characterize novel apple (Malus × domestica Borkh.) genes encoding AP2/ERF transcription factors involved in regulation of plant growth, development, and stress response. The transcriptional level of apple AP2/ERF genes in different tissues and under various biotic and abiotic stress was determined to provide valuable insights into the function of AP2/ERF transcription factors in apple. Methods Thirty full-length cDNA sequences of apple AP2/ERF genes were isolated from ‘Zihong Fuji’ apple (Malus × domestica cv. Zihong Fuji) via homologous comparison and RT-PCR confirmation, and the obtained cDNA sequences and the deduced amino acid sequences were analyzed with bioinformatics methods. Expression levels of apple AP2/ERF genes were detected in 16 different tissues using a known array. Expression patterns of apple AP2/ERF genes were detected in response to Alternaria alternata apple pathotype (AAAP) infection using RNA-seq with existing data, and the expression of apple AP2/ERF genes was analyzed under NaCl and mannitol treatments using qRT-PCR. Results The sequencing results produced 30 cDNAs (designated as MdERF3-8, MdERF11, MdERF16-19, MdERF22-28, MdERF31-35, MdERF39, MdAP2D60, MdAP2D62-65, and MdRAV2). Phylogenetic analysis revealed that MdERF11/16, MdERF33/35, MdERF34/39, and MdERF18/23 belonged to groups A-2, A-4, A-5, and A-6 of the DREB subfamily, respectively; MdERF31, MdERF19, MdERF4/25/28/32, MdERF24, MdERF5/6/27, and MdERF3/7/8/17/22/26 belonged to groups B-1, B-2, B-3, B-4, B-5, and B-6 of the ERF subfamily, respectively; MdAP2D60 and MdAP2D62/63/64/65 belonged to the AP2 subfamily; and MdRAV2 belonged to the RAV subfamily. Array results indicated that 30 apple AP2/ERF genes were expressed in all examined tissues to different degrees. RNA-seq results using previously reported data showed that many members of the apple ERF and DREB subfamilies were induced by Alternaria alternate apple pathotype (AAAP) infection. Under salt treatment, many members in the apple ERF and DREB subfamilies were transcriptionally up or down-regulated. Under mannitol treatment, many members of the apple ERF, DREB, and AP2 subfamilies were induced at the transcriptional level. Taken together, the results indicated that the cloned apple AP2/ERF genes were expressed in all examined tissues. These genes were up-regulated or down-regulated in response to AAAP infection and to salt or mannitol treatment, which suggested they may be involved in regulating growth, development, and stress response in apple.

scholarly journals Transcriptome Analysis Identifies Genes Involved in the Somatic Embryogenesis of Eucalyptus

2020 ◽  
Author(s):  
Yufei Xiao ◽  
Junji Li ◽  
Ye Zhang ◽  
Xiaoning Zhang ◽  
Hailong Liu ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Somatic Embryogenesis ◽  
Large Scale ◽  
Molecular Mechanisms ◽  
Zinc Finger Protein ◽  
Expression Patterns ◽  
Late Embryogenesis Abundant ◽  
Arabinogalactan Protein ◽  
Late Embryogenesis Abundant Protein ◽  
Transcriptional Level

Abstract Background: Eucalyptus, a highly diverse genus of the Myrtaceae family, is the most widely planted hardwood due to its increasing importance for fiber and energy in the word. Somatic embryogenesis is one method to provide large-scale commercial use for the vegetative propagation of Eucalyptus and dedifferentiation is a key step for plant cells to become meristematic. However, little is known about the molecular changes during the SE of Eucalyptus on transcriptional level.Results: We compared the transcriptome profiles of the differentiated and dedifferentiated tissues of two Eucalyptus cultivars – E. camaldulensis (high embryogenetic potential) and E. grandis x urophylla (low embryogenetic potential). In total, we identified 18,777 to 20,240 genes in all samples. Compared to the differentiated tissues, we identified 9,229 and 8,989 differentially expressed genes (DEGs) in the dedifferentiated tissues of E. camaldulensis and E. grandis x urophylla, respectively. Comparison of DEGs showed that they shared 2,687 up-regulated and 2,581 down-regulated genes. Next, we found 2,003 up-regulated and 1,958 down-regulated genes specifically identified in E. camaldulensis, including 6 somatic embryogenesis receptor kinase, 17 ethylene, 12 auxin, 83 ribosomal protein, 28 zinc finger protein, 10 heat shock protein, 9 histone and 98 transcription factor genes. Genes from other families like ABA, arabinogalactan protein and late embryogenesis abundant protein were also found to be specifically dysregulated in E. camaldulensis. Further, we identified 48,447 variants (SNPs and small indels) specific to E. camaldulensis, including 13,434 exonic variants from 4,723 genes (e.g., annexin, GN, ARF and AP2-like ethylene-responsive transcription factor). qRT-PCR was used to confirm the gene expression patterns in both E. camaldulensis and E. grandis x urophylla. Conclusions: This is the first time to study the somatic embryogenesis of Eucalyptus using transcriptome sequencing. Our results will improve our understanding of the molecular mechanisms of somatic embryogenesis and dedifferentiation in Eucalyptus. Our results provide a valuable resource for future studies in the field of Eucalyptus and will benefit the Eucalyptus breeding program.

scholarly journals The landscape of transcriptional and translational changes over 22 years of bacterial adaptation

2021 ◽  
Author(s):  
John S. Favate ◽  
Shun Liang ◽  
Srujana S. Yadavalli ◽  
Premal Shah
Keyword(s):  
Molecular Mechanisms ◽  
Expression Patterns ◽  
Transcriptional Level ◽  
Genomic Changes ◽  
E Coli ◽  
Fitness Effects ◽  
Term Evolution ◽  
Evolution Experiment ◽  
Genetic Level

AbstractOrganisms can adapt to an environment by taking multiple mutational paths. This redundancy at the genetic level, where many mutations have similar phenotypic and fitness effects, can make untangling the molecular mechanisms of complex adaptations difficult. Here we use the E. coli long-term evolution experiment (LTEE) as a model to address this challenge. To bridge the gap between disparate genomic changes and parallel fitness gains, we characterize the landscape of transcriptional and translational changes across 11 replicate populations evolving in parallel for 50,000 generations. By quantifying absolute changes in mRNA abundances, we show that not only do all evolved lines have more mRNAs but that this increase in mRNA abundance scales with cell size. We also find that despite few shared mutations at the genetic level, clones from replicate populations in the LTEE are remarkably similar to each other in their gene expression patterns at both the transcriptional and translational levels. Furthermore, we show that the bulk of the expression changes are due to changes at the transcriptional level with very few translational changes. Finally, we show how mutations in transcriptional regulators lead to consistent and parallel changes in the expression levels of downstream genes, thereby linking genomic changes to parallel fitness gains in the LTEE. These results deepen our understanding of the molecular mechanisms underlying complex adaptations and provide insights into the repeatability of evolution.

scholarly journals Circular RNA AFF4 modulates osteogenic differentiation in BM-MSCs by activating SMAD1/5 pathway through miR-135a-5p/FNDC5/Irisin axis

2021 ◽  
Vol 12 (7) ◽  
Author(s):  
Chao Liu ◽  
An-Song Liu ◽  
Da Zhong ◽  
Cheng-Gong Wang ◽  
Mi Yu ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Formation ◽  
Osteogenic Differentiation ◽  
Molecular Mechanisms ◽  
Expression Patterns ◽  
Regulatory System ◽  
Circular Rna ◽  
Luciferase Reporter ◽  
Integrin Αv

AbstractBone marrow-derived mesenchymal stem cells (BM-MSCs), the common progenitor cells of adipocytes and osteoblasts, have been recognized as the key mediator during bone formation. Herein, our study aim to investigate molecular mechanisms underlying circular RNA (circRNA) AFF4 (circ_AFF4)-regulated BM-MSCs osteogenesis. BM-MSCs were characterized by FACS, ARS, and ALP staining. Expression patterns of circ_AFF4, miR-135a-5p, FNDC5/Irisin, SMAD1/5, and osteogenesis markers, including ALP, BMP4, RUNX2, Spp1, and Colla1 were detected by qRT-PCR, western blot, or immunofluorescence staining, respectively. Interactions between circ_AFF4 and miR-135a-5p, FNDC5, and miR-135a-5p were analyzed using web tools including TargetScan, miRanda, and miRDB, and further confirmed by luciferase reporter assay and RNA pull-down. Complex formation between Irisin and Integrin αV was verified by Co-immunoprecipitation. To further verify the functional role of circ_AFF4 in vivo during bone formation, we conducted animal experiments harboring circ_AFF4 knockdown, and born samples were evaluated by immunohistochemistry, hematoxylin and eosin, and Masson staining. Circ_AFF4 was upregulated upon osteogenic differentiation induction in BM-MSCs, and miR-135a-5p expression declined as differentiation proceeds. Circ_AFF4 knockdown significantly inhibited osteogenesis potential in BM-MSCs. Circ_AFF4 stimulated FNDC5/Irisin expression through complementary binding to its downstream target molecule miR-135a-5p. Irisin formed an intermolecular complex with Integrin αV and activated the SMAD1/5 pathway during osteogenic differentiation. Our work revealed that circ_AFF4, acting as a sponge of miR-135a-5p, triggers the promotion of FNDC5/Irisin via activating the SMAD1/5 pathway to induce osteogenic differentiation in BM-MSCs. These findings gained a deeper insight into the circRNA-miRNA regulatory system in the bone marrow microenvironment and may improve our understanding of bone formation-related diseases at physiological and pathological levels.

scholarly journals Selection and validation of appropriate reference genes for RT-qPCR analysis of flowering stages and different genotypes of Iris germanica L

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yinjie Wang ◽  
Yongxia Zhang ◽  
Qingquan Liu ◽  
Haiying Tong ◽  
Ting Zhang ◽  
...  
Keyword(s):  
Reference Genes ◽  
Molecular Mechanisms ◽  
Gene Selection ◽  
Expression Patterns ◽  
Herbaceous Plant ◽  
Flower Bud ◽  
Perennial Herbaceous Plant ◽  
Iris Germanica ◽  
Accurate Normalization ◽  
Suitable Reference

AbstractIris germanica L. is a perennial herbaceous plant that has been widely cultivated worldwide and is popular for its elegant and vibrantly colorful flowers. Selection of appropriate reference genes is the prerequisite for accurate normalization of target gene expression by quantitative real-time PCR. However, to date, the most suitable reference genes for flowering stages have not been elucidated in I. germanica. In this study, eight candidate reference genes were examined for the normalization of RT-qPCR in three I. germanica cultivars, and their stability were evaluated by four different algorithms (GeNorm, NormFinder, BestKeeper, and Ref-finder). The results revealed that IgUBC and IgGAPDH were the most stable reference genes in ‘00246’ and ‘Elizabeth’, and IgTUB and IgUBC showed stable expression in ‘2010200’. IgUBC and IgGAPDH were the most stable in all samples, while IgUBQ showed the least stability. Finally, to validate the reliability of the selected reference genes, the expression patterns of IgFT (Flowering Locus T gene) was analyzed and emphasized the importance of appropriate reference gene selection. This work presented the first systematic study of reference genes selection during flower bud development and provided guidance to research of the molecular mechanisms of flowering stages in I. germanica.

scholarly journals The PSY Peptide Family—Expression, Modification and Physiological Implications

Genes ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 218
Author(s):  
Amalie Scheel Tost ◽  
Astrid Kristensen ◽  
Lene Irene Olsen ◽  
Kristian Buhl Axelsen ◽  
Anja Thoe Fuglsang
Keyword(s):  
Plant Development ◽  
Higher Plants ◽  
Expression Patterns ◽  
Transcriptional Level ◽  
Amino Acid Peptide ◽  
Developmental Factors ◽  
Peptide Family ◽  
The Family ◽  
Modified Peptides ◽  
High Conservation

Small post-translationally modified peptides are gaining increasing attention as important signaling molecules in plant development. In the family of plant peptides containing tyrosine sulfation (PSYs), only PSY1 has been characterized at the mature level as an 18-amino-acid peptide, carrying one sulfated tyrosine, and involved in cell elongation. This review presents seven additional homologs in Arabidopsis all sharing high conservation in the active peptide domain, and it shows that PSY peptides are found in all higher plants and mosses. It is proposed that all eight PSY homologs are post-translationally modified to carry a sulfated tyrosine and that subtilisin-like subtilases (SBTs) are involved in the processing of PSY propeptides. The PSY peptides show differential expression patterns indicating that they serve several distinct functions in plant development. PSY peptides seem to be at least partly regulated at the transcriptional level, as their expression is greatly influenced by developmental factors. Finally, a model including a receptor in addition to PSY1R is proposed.

scholarly journals Identification of Differentially Expressed Genes in Porcine Ovaries at Proestrus and Estrus Stages Using RNA-Seq Technique

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Songbai Yang ◽  
Xiaolong Zhou ◽  
Yue Pei ◽  
Han Wang ◽  
Ke He ◽  
...  
Keyword(s):  
Differentially Expressed Genes ◽  
Molecular Mechanisms ◽  
Expression Patterns ◽  
Hormone Secretion ◽  
Differentially Expressed ◽  
Receptor Interaction ◽  
The Novel ◽  
Kegg Pathways ◽  
Go Enrichment ◽  
Single Organism

Estrus is an important factor for the fecundity of sows, and it is involved in ovulation and hormone secretion in ovaries. To better understand the molecular mechanisms of porcine estrus, the expression patterns of ovarian mRNA at proestrus and estrus stages were analyzed using RNA sequencing technology. A total of 2,167 differentially expressed genes (DEGs) were identified (P≤0.05, log2  Ratio≥1), of which 784 were upregulated and 1,383 were downregulated in the estrus compared with the proestrus group. Gene Ontology (GO) enrichment indicated that these DEGs were mainly involved in the cellular process, single-organism process, cell and cell part, and binding and metabolic process. In addition, a pathway analysis showed that these DEGs were significantly enriched in 33 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways, including cell adhesion molecules, ECM-receptor interaction, and cytokine-cytokine receptor interaction. Quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR) confirmed the differential expression of 10 selected DEGs. Many of the novel candidate genes identified in this study will be valuable for understanding the molecular mechanisms of the sow estrous cycle.

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