Ras1^CA overexpression in the posterior silk gland improves silk yield

Correction to: Cell Research (2011) 21:991; doi:10.1038/cr.2011.36; published online 15 March 2011

The authors apologize for the mislabeling of Figure 1B, the left label should be Fil-GAL4/3XP3-DsRed2, the right one should be UAS-Ras1^CA/3XP3-EGFP. In the legend of Figure 1A, and Materials and Methods, DsRed2 was used instead of DsRed. The correct Figure 1B is as follows.

Figure 1.

The binary GAL4/UAS transgenic silkworm system and 4 different phenotypes. (A) The GAL4 (pBac{Fil-GAL4-3XP3-DsRed2}) and UAS (pBac{UAS-Ras1^v12-3XP3-EGFP}) plasmid constructs. (B) The UAS lines are crossed with the GAL4 lines to generate the Fil-GAL4/UAS-Ras1^CA lines, in which Ras1^CA was specifically overexpressed in the posterior silk gland. The progeny of this crossing shows four different phenotypes in terms of eye color (1) neither DsRed2-positive nor EGFP-positive, wild type, [D(−)E(−)]; (2) only DsRed2-positive, GAL4 lines, [D(+)E(−)]; (3) only EGFP-positive, UAS lines, [D(−)E(+)]; and (4) both DsRed2-positive and EGFP-positive, GAL4/UAS lines, [D(+)E(+)].