Both Plant And Human DNA
Plant DNA offers a rich lineage in addition to what scientists learned from human DNA. It looks to include DNA from all over the globe. The shroud included samples of European spruce trees, Mediterranean clovers, East Asian plum trees, and North American trees, among other things.
It Was Close Enough
In any case, the most well-known ones were from the Caucasus and the Middle East. That might be a clue as to where it came from. Indeed, it’s not a stretch to believe it came from a location near the alleged grave of the Messiah himself.