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).
Plants & Animals
Dec 18, 2023
0
4
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 ...
Molecular & Computational biology
Dec 15, 2023
2
1197
When animals of two different species mate, their hybrid offspring can be unhealthy or sterile. Often, only one sex is affected.
Evolution
Nov 20, 2023
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28
Researchers at the Francis Crick Institute and Heidelberg University in Germany have shown that sex differences in animals vary dramatically across species, organs and developmental stages, and evolve quickly at the gene ...
Evolution
Nov 2, 2023
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19
The research group of Dr. Claudia Keller Valsecchi (Institute of Molecular Biology, Mainz, Germany) and their collaborators have discovered the master regulator responsible for balancing the expression of X chromosome genes ...
Plants & Animals
Oct 6, 2023
1
109
To date it has been unclear exactly how the sex of a bee is determined. A research team from Heinrich Heine University Düsseldorf (HHU) including biologists and chemists has now identified a key gene and the molecular mechanism ...
Plants & Animals
Oct 4, 2023
0
93
As butterflies flit among flowers, they don't all view blossoms the same way. In a phenomenon called sexually dimorphic vision, females of some butterfly species perceive ultraviolet color while the males see light and dark. ...
Plants & Animals
Aug 10, 2023
0
502
In humans and other animals, sex is usually determined by a single gene. However, there are claims that in some species, such as platyfish, it takes a whole "parliament" of genes acting together to determine whether offspring ...
Plants & Animals
Apr 21, 2023
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54
Nearly every cell in our body contains pairs of each of our chromosomes, and these pairs are identical in all but one case: that of our sex chromosomes. Males typically have one X and one Y sex chromosome, while females typically ...
Cell & Microbiology
Feb 9, 2023
0
129
An innovative technique from Cornell University researchers finds seminal fluid protein transferred from male to female fruit flies during mating changes the expression of genes related to the fly's circadian clock.
Plants & Animals
Jan 30, 2023
0
10
