sample tissue condition fpkm SRR527840 24hpf normal 0.061672000000000005 SRR797917 embryo pbx2/4-MO and prdm1-/- 0.0306613 SRR1021215 sphere stage Mzeomesa 0.028996499999999998 ERR594418 retina transgenic flk1 and develop tumors 0.0176306