Genetics of Egypt's Siwa Berbers?

[Sikeliot]

They often look very Sub-Saharan.

What is their origin compared to other Berbers?

[Amhas]

They often look very Sub-Saharan.

What is their origin compared to other Berbers?

Haplogroup wise, they are unique, they have multiple haplogroups (E-M81, E-M78, R-V88,E-M2, A..) , but we don't have any autosomal from there.

[NetNomad]

They often look very Sub-Saharan.

What is their origin compared to other Berbers?

It was an important node during the Trans-Saharan slave trade. I think they will be like those Southern Morocco samples autosomally but shifted towards Egypt.

[Nebro]

They don't look often sub-saharn at all , they are tribes but some tribes is mixed with sub-saharan in them ,
this is how they look.
https://www.shorouknews.com/uploadedimages/Sections/People%20-%20Life/Women/original/1lr4ns3t14447.jpg
http://journeythroughegypt.com/wp-content/uploads/2014/02/Siwa-girls-dressed-in-their-families-wedding-gowns.-Postcard-image..jpg
https://www.nomadgallery.net/images/uploads/Shawls-Siwa%20Oasis/Siwan%20Bride0001.jpg
https://previews.123rf.com/images/urfl/urfl1512/urfl151201463/50320448-people-in-the-town-and-oasis-of-farafra-in-the-lybian-or-western-desert-of-egypt-in-north-africa.jpg