The chart below shows how to build the diatonic triads from any major scale. The diatonic triads built from the major scale include the major , the minor , the dominant 7th ( the dominant 7th is a major triad it becomes a dominant 7th when the b7th is added eg a 7th chord ) , and the half diminished triad.
The bass chord examples eg triads are shown as arpeggios.
The example shown in Bass tab is taken from the "Constructing Walking Jazz Bass Lines " series Book I The Blues in 12 keys Bass Tab Edition
The Minor Triads
In the above example the minor triads are shown related to the key of F major.
The minor triads in the key of F are the II chord Gmin The III chord Amin and the VI chord Dmin.