Meiosis News and Research

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Multicellular eukaryotes and single-celled sex cells reproduce by a process called meiosis. In this process, the number of chromosomes in a mother cell is halved to produce gametes, cells that fuse with other cells. This happens in plants, animals, and fungi. German biologist, Oscar Hertwig first discovered meiosis in sea urchin eggs in 1876.

Understanding gametogenesis mechanisms in budding yeast

Sexual reproduction, a common mode of reproduction among numerous species, involves gametogenesis in which offspring are produced through fertilization, conjugation, or mating.

27 Sep 2024

Temperature changes influence meiotic crossovers and chromosome organization in yeast

This study is led by Prof. Shunxin Wang (State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University) and Prof. Liangran Zhang (Advanced Medical Research Institute, Shandong University).

23 Aug 2024

Scientists transform skin cells into functional eggs in mice

New research from Oregon Health & Science University describes the science behind a promising technique to treat infertility by turning a skin cell into an egg that is capable of producing viable embryos.

9 Mar 2024

Unveiling the molecular mechanism responsible for crossover interference during meiosis

Movies such as 'X-Men,' 'Fantastic Four,' and 'The Guardians,' which showcase vibrant mutant heroes, have captivated global audiences.

7 Mar 2024

“Laboratory testicles” could solve male infertility mysteries

The testis is responsible for sperm production and testosterone synthesis. Abnormalities in testis development and function lead to disorders of sex development (DSD) and male infertility. Currently, no in vitro system exists for modeling the testis.

20 Feb 2024

Study reveals novel mechanism for longevity of oocytes

Oocytes are immature egg cells that develop in almost all female mammals before birth. The propagation of future generations depends on this finite reserve of cells surviving for many years without incurring damage.

20 Feb 2024

Gene variant linked to increased miscarriage risk through disrupted chromosome pairing

Scientists at deCODE genetics, a subsidiary of Amgen and their collaborators from Iceland, Denmark and USA published a study today in Nature Structural and Molecular Biology titled "Variant in the synaptonemal complex protein SYCE2 associates with pregnancy loss through effects on recombination".

29 Jan 2024

New method illuminates intricate interactions of the synaptonemal complex in nematodes

We have two copies of each chromosome in every cell in our bodies except in our reproductive cells. Sperm and egg cells contain a single copy of each chromosome with a unique mix of genes from our parents, an evolutionary trick to give our offspring genetic variability.

3 Jan 2024

Genome haplarithmisis sheds light on complex genetic landscape of miscarriages

A new study published in Nature Medicine reports on a chromosomal analysis of over 1,700 spontaneous early miscarriages.

27 Nov 2023

Optimized protocol to prevent disease transmission through maternal mitochondrial DNA carryover

Researchers discuss a novel technique to minimize the risk of mtDNA carryover, thereby preventing genetic risk and clinical mitochondrial disease.

5 Oct 2023

CPRIT awards $2 million to SMU to recruit cancer biology researcher Annika Wylie

The Cancer Prevention and Research Institute of Texas (CPRIT) has awarded $2 million to recruit Annika Wylie to SMU and fund five years of her research, which focuses on the p53 gene, a naturally occurring tumor suppressor.

21 Sep 2023

Study provides new insights into the mechanism of Dmc1 filament assembly

Homologous recombination (HR) is an important process that plays multiple crucial roles during meiosis, a type of cell cycle dedicated to sexual reproduction.

19 Jul 2023

An analysis of the differential effect and the impact of SARS-CoV-2 infection on semen quality

Study analyzed the impact of SARS-CoV-2 infection on semen quality.

14 Jun 2023

TbID-based proteomic profiling in meiotic cells helps identify proximate proteins in A. thaliana

During meiosis, reshuffling of genetic information between homologous chromosomes through meiotic recombination creates variable gametes and hence genetic variation in offsprings.

13 Mar 2023

Study aims to understand how female fertility is established at the molecular level

Fertility is finite for mammalian females. From birth, females possess a limited number of primordial follicles, collectively called the ovarian reserve. Within each follicle is an oocyte that eventually becomes an egg. But with age, the follicles in the ovarian reserve decrease.

11 Aug 2022

Meiosis News and Research

Further Reading

Understanding gametogenesis mechanisms in budding yeast

Temperature changes influence meiotic crossovers and chromosome organization in yeast

Scientists transform skin cells into functional eggs in mice

Unveiling the molecular mechanism responsible for crossover interference during meiosis

“Laboratory testicles” could solve male infertility mysteries

Study reveals novel mechanism for longevity of oocytes

Gene variant linked to increased miscarriage risk through disrupted chromosome pairing

New method illuminates intricate interactions of the synaptonemal complex in nematodes

Genome haplarithmisis sheds light on complex genetic landscape of miscarriages

Optimized protocol to prevent disease transmission through maternal mitochondrial DNA carryover

CPRIT awards $2 million to SMU to recruit cancer biology researcher Annika Wylie

Study provides new insights into the mechanism of Dmc1 filament assembly

An analysis of the differential effect and the impact of SARS-CoV-2 infection on semen quality

TbID-based proteomic profiling in meiotic cells helps identify proximate proteins in A. thaliana

Study aims to understand how female fertility is established at the molecular level

Newly characterized stem cell self-renewal factor enables continuous sperm production

Newly-discovered historical information reveals that Mendel was decades ahead of his time

Study offers a new understanding of the evolutionary diversification of KNL2 gene

Genetically-enhanced biocontrols can help eradicate invasive alien mammals

Study identifies critical genes and biological pathways related to COVID-19 myocarditis

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