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Developmental genetics

Female silkworms have the sex factor

Sex determination in the silkworm Bombyx mori has been found to depend on the presence or absence of a small RNA. This is thought to be the first example of a molecule other than a protein mediating this process. See Letter p.633

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Figure 1: Sex determination in silkworms.


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Correspondence to František Marec.

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Marec, F. Female silkworms have the sex factor. Nature 509, 570–571 (2014).

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