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Biotechnology Dec 19, 2023

Scientists construct a synthetic yeast genome

Chromosomes are long DNA molecules that collectively form a genome, containing all the genetic material of an organism. Advances in technology have allowed scientists to redesign and construct different chromosomal sequences, ...

Plants & Animals Dec 18, 2023

Study sheds new light on regulation of sex differentiation in spotted knifejaw, a cultured fish

A new study published in the International Journal of Biological Macromolecules has identified the regulatory mechanism of sex differentiation in the important cultured fish, the spotted knifejaw (X1X1X2X2/X1X2Y).

Molecular & Computational biology Dec 15, 2023

Sex chromosomes responsible for much more than determining sex, study shows

Human sex chromosomes originated from a pair of autosomes, the ordinary or non-sex chromosomes that contain the majority of our genome and come in identical pairs. That ancestral pair of autosomes diverged to become two different ...

Plants & Animals Dec 6, 2023

Scientists develop 'sexy_markers,' a bioinformatics tool that reveals white shark gender

A new study led by CSIRO, Australia's national science agency, has revealed white shark gender is determined by X and Y sex chromosomes.

Cell & Microbiology Nov 29, 2023

Research reveals clever dosage control mechanism of biallelic genes

Have you ever wondered why we carry two copies of each chromosome in all of our cells? During reproduction, we receive one from each of our parents. This means that we also receive two copies, or alleles, of each geneā€”one ...

Molecular & Computational biology Nov 24, 2023

Chinese team completes the genome assembly of Cornus wilsoniana

Cornus wilsoniana (2n=22) is a common shrub in the northern temperate zone of China. It blooms white flowers in spring and produces purple-black berries in autumn. This tree has a unique mottled bark texture that makes it ...

General Physics Nov 22, 2023

Physicists model chromosome folding, reveal how loops affect spatial organization of the genome

Human chromosomes are long polymer chains that store genetic information. The nucleus of each cell contains the entire human genome (DNA) encoded on 46 chromosomes with a total length of about 2 meters. To fit into the microscopic ...

Molecular & Computational biology Nov 21, 2023

Unlocking citrus tolerance secrets: The Valencia sweet orange genome and the fight against HLB disease

Sweet orange (Citrus sinensis L.), a hybrid fruit crop originating from mandarins (Citrus reticulata Blanco) and pummelos [Citrus maxima (Burm.) Merr.], exhibits complex genomic diversity due to ancient interspecific hybridization. ...

Plants & Animals Nov 20, 2023

Researchers develop comprehensive genetic map for bison, discover gene responsible for albinism

A research team led by scientists from the Texas A&M School of Veterinary Medicine & Biomedical Sciences (VMBS) has developed the most comprehensive genome yet for the North American bison, bringing the animal's genetic roadmap ...

Evolution Nov 20, 2023

Study of crossbred butterflies suggests multiple genes involved in hybrid animal sterility

When animals of two different species mate, their hybrid offspring can be unhealthy or sterile. Often, only one sex is affected.

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