Mammalian Gametogenesis, Fertilization and Early Embryogenesis: 2nd Edition

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Animal Science".

Deadline for manuscript submissions: 20 March 2025 | Viewed by 737

Special Issue Editor


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Guest Editor
Department of Biological Sciences, Marshall University, Huntington, WV 25701, USA
Interests: mammalian reproduction; epigenetics; cell–cell membrane interaction; genetic mutation; human disease
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Mammals produce offspring through sexual reproduction. Thus, mammalian reproduction is vital for animal evolution, species existence, population growth, and animal health. The process of producing life includes gametogenesis, fertilization, embryogenesis, and post-delivery care. Mammalian gametogenesis is a highly orchestrated process that generates genetically and epigenetically unique gametes. Mammalian fertilization is the union of a sperm and an egg in a species-specific manner that forms a single-cell embryo called a zygote. The zygote, remarkably, reprograms the gamete-specific genome and epigenome to begin embryogenesis and the creation of a new organism.

It is well known that aberrant human reproduction can lead to infertility, birth defects, and genetic diseases. Although different mammalian species employ diverse strategies to deliver sperm to the egg, molecular mechanisms are largely conserved among mammals, including humans. Therefore, basic research into mammalian animal models may advance translational research in human reproductive medicine to improve human well-being.

The emergence of new technology and tools has recently significantly promoted our understanding of mammalian reproduction at the molecular, cellular, genetic, epigenetic, and genomic levels. It is of great interest to promptly broadcast fascinating discoveries and hypotheses to the scientific community and healthcare professionals. For this Special Issue, we invite scientists and clinicians to contribute original research articles, clinical studies, reviews, and perspectives that underscore novel findings in the areas of spermatogenesis, oogenesis, sperm–egg interactions, and zygotic activation. We envisage that this collection will further basic and translational research in mammalian reproduction.

Prof. Dr. Guo-Zhang Zhu
Guest Editor

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Keywords

  • mammalian reproduction
  • mammalian gametogenesis
  • mammalian fertilization
  • zygote
  • embryogenesis
  • spermatogenesis
  • oogenesis
  • sperm–egg interaction
  • zygotic activation

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Published Papers (1 paper)

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9 pages, 620 KiB  
Brief Report
Utilization of Assisted Reproductive Technologies in Breeding Auliekol Cattle: A Comparative Study
by Altyn Kulpiisova, Kairly Yessengaliyev, Gulsara Kassimova, Ainat Kozhakhmetova, Bakytkanym Kadraliyeva, Abeldinov Rustem, Alma Temirzhanova, Nadezhda Burambayeva, Salbak Chylbak-ool, Elena Pakhomova, Nurzhan Abekeshev, Gulnara Baikadamova, Zhomart Kemeshev, Alexandra Tegza, Arman Issimov and Peter White
Life 2024, 14(9), 1167; https://doi.org/10.3390/life14091167 - 15 Sep 2024
Viewed by 656
Abstract
This study evaluates the utilization of in vitro embryo production (IVEP) technology for the conservation and breeding of the Auliekol cattle breed, a primary beef breed in Kazakhstan facing population decline due to the cessation of breeding programs and the incursion of transboundary [...] Read more.
This study evaluates the utilization of in vitro embryo production (IVEP) technology for the conservation and breeding of the Auliekol cattle breed, a primary beef breed in Kazakhstan facing population decline due to the cessation of breeding programs and the incursion of transboundary diseases. We assessed the effect of consecutive ovum pick-up (OPU) procedures on oocyte yield and embryo production in Auliekol and Aberdeen Angus cows. A total of 2232 and 3659 oocytes were aspirated from Auliekol and Aberdeen Angus donors, respectively, with significantly higher yields and embryo production observed in Aberdeen Angus cows. The application of a meiotic block using Butyrolactone I (BLI) and subsequent in vitro fertilization (IVF) protocols was employed, with embryo development monitored up to the morula/blastocyst stage. Results indicated that Auliekol cows exhibited lower oocyte recovery, cleavage, and blastocyst rates compared to Aberdeen Angus cows, likely due to genetic characteristics. Despite the challenges, IVEP presents a valuable tool for the preservation and future propagation of the Auliekol breed, highlighting the need for further research to enhance reproductive outcomes and conservation strategies. Full article
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