In a paper published online in advance in Nucleic Acids Research this week, researchers at Israel's Weizmann Institute of Science and Tel Aviv University show that a "lack of co-adaptation between the codon usage of the transferred gene and the tRNA pool of the recipient organism" is a previously unrecognized central barrier to horizontal gene transfer between microbes.

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Jay Shendure and his colleagues have developed a new method to more comprehensively identify human cell types, the NY Times reports.

Researchers in the UK and Japan have shown that infertility in mice with three sex chromosomes can be overcome, according to the Guardian.

China is embracing preimplantation genetic diagnosis, Nature News reports. 

In PLOS this week: host genetic factors associated with cervical neoplasia progression, population patterns for an ancient flowering rainforest plant, and more.