You've just started. You are still in the first tech age. Those technologies are in the second age. Check the bottom of the screen bars.
Ok the techs look like these ones are unlocked by certain abilities.
It's a combination of being a starting tech based on your ability, and not having unlocked the age yet. From my perspective it doesn't look like a but.
What are all your species abilities.
Without having a computer screen in front of me right now I'm guessing your the Thalans, or at least Time Travelors.
I think game wise it would be better if the starting techs weren't ever on the trees.