We have, actually, had several discussions here about Lupus and heredity. You can use our search (above) to find those discussions. Just type in the word "heredity" and the engine will find all discussions, in these forums, where that word appears.
After reading those, if you still have questions about Lupus and heredity, please let us know and we will help you as much as we can. :lol:
In a nutshell, however, researchers do believe that genetics do play a large part in why family members get auto-immune disorders, such as Lupus. I have Lupus and my daughter developed Lupus (she lost her battle in 1999). My family (extended and nuclear) is replete with different auto-immune disorders.
Please keep us advised of how your tests go and I will keep both you and your daughter in my prayers!
Peace and Blessings
Look For The Good and Praise It!