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.

SYCE2 Gene Variant Disrupts Alignment of Chromosomes, Potentially Leading to Pregnancy Loss

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".

30 Jan 2024

Zipping Up Chromosomes: The Synaptonemal Complex Revealed

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.

4 Jan 2024

New Discovery Leads to Underlying Factors to Gene Size Variations

The present understanding of genomic stability and variability is mostly based on a few model species, leaving the scope and generality of these discoveries uncertain.

9 Aug 2023

Malaria Parasite’s Meiosis Could Hold the Key to New Treatments

Researchers from the Universities of Leicester and Nottingham have been awarded nearly £600,000 to investigate how sexual development and gene shuffling inside the malaria parasite can help regulate malaria transmission.

7 Aug 2023

Understanding How Supernumerary Chromosomes Arise

The majority of chromosomes have existed for millions of years.

5 May 2023

TurboID-based proximity labeling in meiotic cells of Arabidopsis thaliana

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

14 Mar 2023

New insights into the distribution and regulation of meiotic DSB hotspots

A new method, DNA End tailing and sequencing (DEtail-seq), for meiotic DNA double-strand break (DSB) profiling was developed recently.

3 Mar 2023

Scientists accelerate the development of pure genetic lines by inducing mutation

Iowa State University researchers may have solved a long-standing challenge associated with accelerated development of pure genetic lines.

20 Feb 2023

Meiotic drive systems can be maintained for long evolutionary timespans

Meiotic drivers, which are a sort of selfish gene, are, in fact, selfish. They are found in nearly all species’ genomes, including humans, and unfairly convey their genetic information to more than half of their offspring, resulting in infertility and impaired organism health.

21 Oct 2022

Research provides better understanding of the Prussian carp's peculiar, efficient reproductive strategy

The Prussian carp is considered one of the most successful invasive fish species in Europe. Its ability to reproduce asexually gives it a major advantage over competing fish.

20 Jul 2022

UGA research determines when pollen comes of age

It cakes our cars in yellow powder every spring and taunts allergy sufferers for months on end, but pollen is more than just plant sperm.

From University of Georgia 23 Feb 2022

Genetic variants that predict higher blood levels of lipoprotein A linked with prostate cancer risk

A new analysis has uncovered a potential link between higher prostate cancer risk and genetic variants associated with higher bloodstream levels of the cholesterol-transporting molecule lipoprotein A.

28 Jan 2022

Experts develop CRISPR-Cas9-mediated inheritance control in male mice

The world’s first CRISPR-Cas9 genetic editing-based strategy to regulate inheritance in mammals was declared nearly three years ago.

From UC San Diego 13 Jan 2022

Custom Biofluid & Tissue Procurement Service

Global provider of human and animal biospecimens - AMSBIO offers a custom procurement service enabling researchers to source specific biofluid and tissue samples which are not already available in their extensive biorepository.

From AMS Biotechnology 1 Dec 2021

Researchers identify a gene in wheat with profound effects on the production of seeds

Scientists from the John Innes Centre have identified a gene that has deep-rooted effects on seed production in wheat.

10 Nov 2021

Three-dimensional organization of genome is extremely dynamic during gamete formation

Inside the nuclei of cells, the genome is tightly organized (packaged). This three-dimensional (3D) genome organization is basic because it controls gene expression.

21 May 2021

Research group reveals the essential role of Knl1 gene in plants

Dr. HAN Fangpu's group from the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences reports the identification and functional study of the maize Knl1 gene in an article published online in PNAS.

12 May 2021

Study uncovers unusual sex chromosomes of Australian iconic animals

The sex chromosomes genetically define the developmental fate of an embryo to become a male or a female individual, and usually, appear as one pair of morphologically different chromosomes between sexes.

8 Jan 2021

Evolutionary biologists discover genomic signatures of recombination in freshwater invertebrates

Skoltech's evolutionary biologists discovered recombination in bdelloid rotifers, microscopic freshwater invertebrates, which have long been regarded as 'an evolutionary scandal' due to their presumed ancient asexuality.

18 Dec 2020

Imperfect egg cells more common than originally thought

AZoLifeSciences speaks to Dr. Terry Hasssold about his latest research into oocytes and how imperfect egg cells are more common than scientists initially thought.

16 Dec 2020