ArticleFrontiers in cell and developmental biology2021
Dysregulated Gene Expression of Imprinted and X-Linked Genes: A Link to Poor Development of Bovine Haploid Androgenetic Embryos.
Article in Frontiers in cell and developmental biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 10 citations in OpenAlex.
- Generation of Biparental Bovine Embryos via Haploid Cell Injection (Semi-cloning) for Embryo Production with Predetermined Parental Genomes.Current protocols · 2026Article
- Effect of Small Molecules on Blastocyst Development and Outgrowth Establishment of Bovine Haploid Parthenogenetic Embryos.Animals : an open access journal from MDPI · 2026Article
- Review
- Haploid embryos and embryonic stem cells to produce offspring with predetermined parental genomes in cattle.Animal reproduction · 2024Article
- Preimplantation Developmental Competence of Bovine and Porcine Oocytes Activated by Zinc Chelation.Animals : an open access journal from MDPI · 2022Article
- Simple and Efficient Chemically Defined In Vitro Maturation and Embryo Culture System for Bovine Embryos.Animals : an open access journal from MDPI · 2022Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
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Abstract
Mammalian uniparental embryos are efficient models for genome imprinting research and allow studies on the contribution of the paternal and maternal genomes to early embryonic development. In this study, we analyzed different methods for production of bovine haploid androgenetic embryos (hAE) to elucidate the causes behind their poor developmental potential. Results indicate that hAE can be efficiently generated by using intracytoplasmic sperm injection and oocyte enucleation at telophase II. Although androgenetic haploidy does not disturb early development up to around the 8-cell stage, androgenetic development is disturbed after the time of zygote genome activation and hAE that reach the morula stage are less capable to reach the blastocyst stage of development. Karyotypic comparisons to parthenogenetic- and ICSI-derived embryos excluded chromosomal segregation errors as causes of the developmental constraints of hAE. However, analysis of gene expression indicated abnormal levels of transcripts for key long non-coding RNAs involved in X chromosome inactivation and genomic imprinting of the KCNQ1 locus, suggesting an association with X chromosome and some imprinted loci. Moreover, transcript levels of methyltransferase 3B were significantly downregulated, suggesting potential anomalies in hAE establishing
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