This Week in Nature

In Nature this week, a group of US and Chinese investigators presents a genetic analysis of the improved yields from hybrid rice compared with inbred parent varieties — a phenomenon known as heterosis. They report large-scale genomic mapping for yield-related traits and effects by analyzing over 10,000 rice lines derived from 17 representative hybrid rice crosses, classifying modern hybrid rice varieties into three groups representing different breeding systems.

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The Jackson Laboratory has filed a complaint accusing Nanjing University of breeding and re-selling its mouse models, the Hartford Courant reports.

Oxford researchers are turning to virtual reality to visualize genes and regulatory elements, Phys.org says.

In Science this week: neutrophils rely on microRNA to protect against lung inflammation, and more.

China is moving forward with plans to sequence a million citizens, the Wall Street Journal reports.