Is there an Iranian influence in Yemen?

[Dr_Maul]

We know that countries such as Oman and UAE have a high level of South Asian contribution, and they have an interaction with Iranian peoples.
What about Iranian effects and phenotypes in Yemen?

There are a handful of Sassanid abna left in yemen, actually yemen's ambassador to tehran Ibrahim Al-Daylami belongs to this tribe, I do not believe that they have affected the country in any meaningful way genetically
I saw a yemeni matching with Turkish Zazas (who are also Daylami origin) on R1a, but the TMRCA was not adding up to the historical situation