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Page 25 - தேசிய மனிதன் மரபணு ஆராய்ச்சி நிறுவனம் News Today : Breaking News, Live Updates & Top Stories | Vimarsana

The Vertebrate Genomes Project introduces a new era of genome sequencing

 E-Mail The Vertebrate Genomes Project (VGP) today announces their flagship study and associated publications focused on genome assembly quality and standardization for the field of genomics. This study includes 16 diploid high-quality, near error-free, and near complete vertebrate reference genome assemblies for species across all taxa with backbones (i.e., mammals, amphibians, birds, reptiles, and fishes) from five years of piloting the first phase of the VGP project. Nature, with companion papers simultaneously published in other scientific journals, the VGP details numerous technological improvements based on these 16 genome assemblies. In the flagship study, the VGP demonstrates the feasibility of setting and achieving high-quality reference genome quality metrics using their state-of-the-art automated approach of combining long-read and long-range chromosome scaffolding approaches with novel algorithms that put the pieces of the genome assembly puzzle together.

Study dives deeper into genetic differences between modern and archaic humans

Date Time Study dives deeper into genetic differences between modern and archaic humans Researchers examined 14,000 genetic differences between modern humans and our most recent ancestors at a new level of detail. They found that differences in gene activation – not just genetic code – could underlie evolution of the brain and vocal tract. By Taylor Kubota A genome by itself is like a recipe without a chef – full of important information, but in need of interpretation. So, even though we have sequenced genomes of our nearest extinct relatives – the Neanderthals and the Denisovans – there remain many unknowns regarding how differences in our genomes actually lead to differences in physical traits.

Lemurs that aren t picky eaters may survive forest loss

A flexible diet may help leaf-eating lemurs resist deforestation, researchers report. A new study sequencing the genome of four species of sifakas, a genus of lemurs found only in Madagascar’s forests, reveals that these animals’ taste for leaves runs all the way to their genes, which are also more diverse than expected for an endangered species. Sifakas are folivores, meaning that the bulk of their diet is composed of leaves. Leaves can be difficult to digest and full of toxic compounds meant to prevent them from being eaten. Unlike our carefully selected spinach, tree leaves also don’t taste great, and are not very nutritious.

A new perspective on the genomes of archaic humans

 E-Mail A genome by itself is like a recipe without a chef - full of important information, but in need of interpretation. So, even though we have sequenced genomes of our nearest extinct relatives - the Neanderthals and the Denisovans - there remain many unknowns regarding how differences in our genomes actually lead to differences in physical traits. When we re looking at archaic genomes, we don t have all the layers and marks that we usually have in samples from present-day individuals that help us interpret regulation in the genome, like RNA or cell structure, said David Gokhman, a postdoctoral fellow in biology at Stanford University.

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