Canadian researchers introduce a computational method for discerning copy number and loss of heterozygosity patterns from tumor genome sequence data. The probabilistic model, known as TITAN, is designed to provide clues about copy number architecture in mixed cell populations, the team says, including the clonal populations that make up a tumor sample.

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Technology Review reports that researchers in the US have used CRISPR to modify a number of human embryos.

By introducing genes from butterfly peas and Canterbury bells, researchers in Japan have developed a blue chrysanthemum, according to NPR.

Plant researchers plan to sequence some 10,000 samples that represent the major plant clades, ScienceInsider reports.

In Nature this week: a Danish reference genome, and more.