Nature has evolved clever ways to prevent animals from different species from successfully reproducing. As published in the upcoming issue of Genes & Development, molecular biologists at UC Irvine are gaining a better understanding as to how.
In the October 15th issue, Drs. Noriko Kamei and Charles Glabe report on the identification of a receptor on the surface of sea urchin eggs that regulates the species-specific adhesion of sperm.
External fertilization can be risky business, especially for marine animals whose sperm is released into an aqueous environment. Thus, there are several barriers to prevent cross-fertilization between different species of sea urchins, or even, say, sea horse sperm from fertilizing sea urchin eggs. The recognition of egg and sperm involves a number of steps (sperm attraction, activation, and adhesion to the egg surface), each of which serves as a checkpoint to restrict the gene pool to individuals of the same species.
Heather Cosel | EurekAlert!
Scientists propose new theory on Alzheimer's, amyloid connection
23.04.2019 | Florida Atlantic University
Research on TGN1412 – Fc:Fcγ receptor interaction: Strong binding does not mean strong effect
23.04.2019 | Paul-Ehrlich-Institut - Bundesinstitut für Impfstoffe und biomedizinische Arzneimittel
Researchers led by Francesca Ferlaino from the University of Innsbruck and the Austrian Academy of Sciences report in Physical Review X on the observation of supersolid behavior in dipolar quantum gases of erbium and dysprosium. In the dysprosium gas these properties are unprecedentedly long-lived. This sets the stage for future investigations into the nature of this exotic phase of matter.
Supersolidity is a paradoxical state where the matter is both crystallized and superfluid. Predicted 50 years ago, such a counter-intuitive phase, featuring...
A stellar flare 10 times more powerful than anything seen on our sun has burst from an ultracool star almost the same size as Jupiter
A localization phenomenon boosts the accuracy of solving quantum many-body problems with quantum computers which are otherwise challenging for conventional computers. This brings such digital quantum simulation within reach on quantum devices available today.
Quantum computers promise to solve certain computational problems exponentially faster than any classical machine. “A particularly promising application is the...
The technology could revolutionize how information travels through data centers and artificial intelligence networks
Engineers at the University of California, Berkeley have built a new photonic switch that can control the direction of light passing through optical fibers...
Physicists observe how electron-hole pairs drift apart at ultrafast speed, but still remain strongly bound.
Modern electronics relies on ultrafast charge motion on ever shorter length scales. Physicists from Regensburg and Gothenburg have now succeeded in resolving a...
17.04.2019 | Event News
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23.04.2019 | Life Sciences
23.04.2019 | Physics and Astronomy
18.04.2019 | Life Sciences