molecular biology

molecular biology

molecular biology

New cell type promotes parental care in mice

A research team has discovered a type of cell that appears to be linked to parental care in Oldfield mice, a monogamous species. These cells are not present in Deer mice, other rodents of the same genus that engage in promiscuous behaviour. The results "provide an example by which the recent evolution of a new cell type in a gland outside the brain contributes to the evolution of social behaviour," the authors conclude in their paper, published in Nature

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Reactions: Yeast with over half of its genome synthetic developed for the first time

A team of researchers has managed to combine more than seven synthetic chromosomes made in the laboratory in a single yeast cell. This involves developing for the first time a eukaryotic cell with more than 50% synthetic DNA, which survives and replicates in a similar way to wild yeast strains. The results, which are part of the Synthetic Yeast Genome Project (Sc2.0), are published in the journal Cell.

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Reactions to the finding of new combinations of mutations, 'mutational signatures', associated with specific cancers

Whole genome analysis of more than 12,000 tumors has identified new patterns of mutations associated with specific cancers. These combinations generate specific mutational signatures, the study of which provides information on environmental factors causing the mutations. The work is published in Science.

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