The tea's DNA is now mapped. It was a lot of work when the tree tree has four times as many genes as the coffee plant, more specifically 37,000 genes.
It is now believed that thanks to the mapping, you will be able to produce (both cultivated and GMO) variants that, for example, can withstand drought better. Which would help tea a lot when drought is a major threat to the world's most popular drink (after water).
It also gives a better view of the history of tea