This Week in Science

This week in Science, scientists from the Institut National de Recherche Agronomique in France publish the genome sequence of Brassica napus, the plant from which canola oil is derived. B. napus is an allopolyploid, with chromosomes from Asian cabbage and Mediterranean cabbage that were found to continuously exchange corresponding genetic material. Such gene conversion events, the researchers say, appear to have been selected by humans as part of crop improvement.

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