True enough; but that is not the same as what the tree of life in the Garden represented. A symbol is not limited to a single representation.
Jewish apocalyptic symbols tend to be consistent across multiple authors/books.
In Judges, Jotham tells a parable in which the Israelites invite the olive tree, the fig tree, the grape vine, and the bramble bush to be king over the nation.
Ezekiel designated the King of Assyria as "the tallest tree in Eden."
When Daniel interpreted Nebuchadnezzar's dreams, the great tree there represented the king.
Zechariah writes down Zerubbabel as "the branch."
Isaiah has "the root of Jesse" rising to reign over the Gentiles.
Jesus calls Himself "the true vine."
Paul writes down the nation of Israel as branches attached to the Olive Tree which is the Lord.
Revelation has Jesus as "the root of David."
In short, trees are a common symbol for kings throughout the Bible, and by extension their kingdoms (that which dwells under their covering).
So, what do the trees in Genesis represent?