Effects of a skill affinity on its subskills?

[Ignacius 31]

Quick question (checked the Affinities wurmpedia article but it didn't say):

 

If a character has an affinity in a skill that has subskills (for example, Smithing), does the skillgain boost also apply to the subskills beneath it (for example, Weapon smithing)?

 

Thank you in advance!

[Theodein 174]

No