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High-throughput chromosome conformation capture (Hi-C) provides genome-wide insights into chromatin interactions within the three-dimensional structure of the nucleus, making it a powerful tool for studying genome architecture. Here, we provide a modified in situ Hi-C protocol for small cell numbers, utilizing 50-100 embryonic cells at the 8-cell stage to investigate chromatin organization during bovine early embryonic development. This protocol overcomes the challenges of limited sample availability and offers valuable insights into chromatin dynamics during bovine early embryogenesis. For complete details on the use and execution of this protocol, please refer to Zhang et al..
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http://dx.doi.org/10.1016/j.xpro.2025.104064 | DOI Listing |
STAR Protoc
September 2025
College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Northwest A&F University, Yangling 712100, China. Electronic address:
High-throughput chromosome conformation capture (Hi-C) provides genome-wide insights into chromatin interactions within the three-dimensional structure of the nucleus, making it a powerful tool for studying genome architecture. Here, we provide a modified in situ Hi-C protocol for small cell numbers, utilizing 50-100 embryonic cells at the 8-cell stage to investigate chromatin organization during bovine early embryonic development. This protocol overcomes the challenges of limited sample availability and offers valuable insights into chromatin dynamics during bovine early embryogenesis.
View Article and Find Full Text PDFNat Commun
August 2025
National Key Laboratory for Swine Genetic Improvement and Germplasm innovation Technology, Jiangxi Agricultural University, Nanchang, China.
Parent-of-origin effects refer to the phenomenon whereby the gene expression and corresponding phenotype are influenced by paternal or maternal origin, and uncovering the underlying regulatory mechanisms remains a challenging task. To address this, we designed three sets of trio families by crossing divergent pig breeds to generate sufficient heterozygous loci and collected back fat and longissimus dorsi for multi-omics sequencing. Parental phases of sequencing reads are efficiently determined by leveraging long-read sequencing technology.
View Article and Find Full Text PDFLife Sci Space Res (Amst)
August 2025
NASA Langley Research Center, 1 Nasa Dr, Hampton VA 23681, USA.
Purpose: Radiation-induced carcinogenesis remains one of the main hurdles for long duration missions in deep space. The space radiation environment is diverse and includes high linear energy transfer (LET) ions that are particularly effective at inducing adverse health outcomes including cancer. Quantifying the health effects of these high-LET ions is difficult, and large uncertainties remain in cancer risk projections.
View Article and Find Full Text PDFGenome Biol
August 2025
School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan Yazhou Bay Seed Laboratory, Hainan University, Sanya, 572025, China.
Background: Yellow pitaya (Selenicereus megalanthus, 2n = 4x = 44) breeding remains severely hindered due to the lack of a reference genome.
Results: Here, we present a high-quality chromosome-level genome assembly of yellow pitaya using PacBio HiFi sequencing and Hi-C scaffolding technologies. We identify yellow pitaya as an autotetraploid with a genome size of 1.
Front Plant Sci
June 2025
Jiangxi Provincial Key Laboratory of Ex Situ Plant Conservation and Utilization, Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, China.
Transcription factors function in complex regulatory networks to regulate various biological and physiological processes. In soybean (), GmLUX, as an important component of the evening complex, plays a critical role in the regulation of soybean flowering regulation. In this study, the genome-wide characterization and epigenetic features of GmLUX binding sites have been analyzed using high-throughput sequencing methods, such as ChIP-seq, Hi-C, histone modification and ATAC-seq.
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