From: Identification of an extensive gene cluster among a family of PPOs in Trifolium pratense L. (red clover) using a large insert BAC library
Gene
PPO variant
Estimated no. BAC clones containing PPO
Confirmed no. sequences from BAC clones
Predicted PPO copy no.
PPO1 (total)
≥ 28
11
3–5
PPO1/2
4
2
1
PPO1/4
≥ 26a
5
PPO1/5
9
1–2
PPO2
PPO4
6
PPO5