The trunk and the roots of the eight olive trees
growing in the Garden of Gethsemane, near the Basilica of Agony, in the
place where Jesus sweated blood and was arrested, all have the same DNA
and so did not grow from different seeds but were born from one already
existing plant.
These are the findings of the study supported by the
Custody of the Holy Land, and presented at a press conference this
morning in Rome by the Custodian of the Holy Land, Fr. Pierbattista
Pizzaballa.
The research was carried out over three years and
was conducted by a team of researchers from the National Research
Council (CNR), and various Italian universities. The project was led by
Dr. Antonio Cimato of the Tree and Timber Institute (Ivalsa) / CNR, in
Florence and Professor Giovanni Gianfrate, of the cultural association
“Coltiviamo la pace” (Let's cultivate peace), in Florence.
Radiocarbon dating dates the trees back to the 12th
century (1092-1198) so it is clear the garden was being re-arranged
during the Crusades. These plants are therefore ancient and at least a
thousand years old.
But what attracted the scholars’ attention the
most was the fact that the olive trees have the same genetic profile.
Portions of quite large branches (branch cuttings), at least a metre
long, taken from a single plant which must have been quite large and had
at least nine large branches (one died and eight have survived) were
planted in the garden, giving birth to eight olive trees which are all
"children" of a single specimen.
Since the distance between each olive
tree does not match the criteria used in the Middle Ages, the olive
trees could have even been planted before the era of the Crusades.
The Mount of Olives has been called this way since the 3rd
century BC and was covered in olive trees. When these are cultivated
they do not grow into bushes rather than trees.
It is likely that one of
these plants was the subject of particular worship as it is clear that
special efforts were made to keep it alive by planting its most robust
branches.
The fact that this tree was therefore much older and that so
much care went into preserving it could mean it “witnesses” the start of
Jesus’ Passion.
The results of the research show the trees are
healthy. The custody of the Holy Land now has all the information it
needs to ensure the olive trees in the Garden of Gethsemane are
preserved in the best way possible.