Original sentence: The study concludes that this does not mean that any of these present-day groups bear direct ancestry from people who lived in the Middle-to-Late Bronze Age Levant or in Chalco-lithic Zagros; rather, it indicates that they have ancestries from populations whose ancient proxy can be related to the Middle East
Edited sentence: The study concludes that this does not mean that any of these present-day groups bear direct ancestry from people who lived in the Middle-to-Late Bronze Age Levant or in Chalco-lithic Zagros; rather, it indicates that they have ancestries from populations whose ancient proxy can be related to the Middle East, but also that their results suggest that those modern populations are consistent with having 50% or more of their ancestry from the Bronze Age Levant and the Chalcolithic Zagros