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Theiler Stages

The definitions of Theiler stages used in GUDMAP, and their relationship to days post-coitum (dpc), are those that appear on the EMAP website.

Each Theiler stage is identified with one 'average' age, and a range of variation of real ages, centring on this average, that can be seen when real developing embryos are studied.

Theiler Stage (TS) Alternative Staging Theiler Stage (TS) Alternative Staging
TS10 7 dpc (range 6.5 - 7.75) TS20 12 dpc (range 11.5 - 13)
TS11 7.5 dpc (range 7.25 - 8) TS21 13 dpc (range 12.5 - 14)
TS12 8 dpc (range 7.5 - 8.75 TS22 14 dpc (range 13.5 - 15)
TS13 8.5 dpc (range 8 - 9.25) TS23 15 dpc
TS14 9 dpc (range 8.5 - 9.75) TS24 16 dpc
TS15 9.5 dpc (range 9 - 10.25) TS25 17 dpc
TS16 10 dpc (range 9.5 - 10.75) TS26 18 dpc
TS17 10.5 dpc (range 10 - 11.25) TS27 P0 - P3
TS18 11 dpc (range 10.5 - 11.25) TS28 P4 - Adult
TS19 11.5 dpc (range 11.5 - 12.25)    

Click here to browse gene expression data in GUDMAP by Theiler Stage.