An air carrier First Officer reported release had SID fixes listed rather than the transition resulted in missed fix and a CFTT event. First Officer also stated that fatigue factor affected mistake.

Narrative

Departing Reno to the south from runway 17R. Release had us filed via the ZEFFR8 Departure; ZEFFR; JCKPT; MRLET; and more. The PM built the original route as filed. During route discussion as the PF I expressed confusion why we would be filed for multiple points that were on the SID rather than just filing for the SID with an ending transition. When the PDC came it was ZEFFR8; MRLET we went and deleted JCKPT from the flight route and continued. Even during the before takeoff brief we discussed how weird it was that we were going to ZEFFR skip two points on the departure (EPOSE and JCKPT) and go on to MRLET. Neither of us really recognized the mistake nor queried ATC. On climb out departure asked why we started the turn early and inquired whether we saw the terrain. At that point we were already over 10;000 and could clearly see the terrain below us but that is when we identified the issue.Cause: I think this was a combination of confusion and a bit of fatigue. We had two long days in a row. Day 3 ended at XA00 and then was a 10:32 minute rest into an early start. First flight of the morning with all the extra briefing material because of Reno we didn't recognize the issue with our thinking regarding the departure.Suggestions: Not putting the release clearance in or completely restarting the route upon receipt of the PDC. Confirming with ATC if there is any confusion or questions.