What component of the common ancestry theory is suggested to be negligible or nonexistent in one competing theory emphasizing Iberian purity?

Answer

The Bloodhound influence.

One theory champions a purer Iberian origin, suggesting that the Bloodhound influence is negligible or nonexistent in the breed's ancestry.

What component of the common ancestry theory is suggested to be negligible or nonexistent in one competing theory emphasizing Iberian purity?
DogbreedFila Brasileiro