Fig. 1.

Expression pattern of the two GS5 alleles. Fresh tissues of NIL(ZS97) and NIL(H94) grown under natural field conditions were used. (A) Expression pattern of GS5 during the entire life cycle of the rice plant. 1, Embryo at 72h after imbibition; 2, plumule at 48h after emergence; 3, leaf from seedlings at the single-leaf stage; 4, leaf blade at the trefoil stage; 5, young leaf blade at the tillering stage; 6, mature leaf blade at the tillering stage; 7, flag leaf blade at the heading stage; 8, leaf sheath at the trefoil stage; 9, leaf sheath at the tillering stage; 10, tiller bud at the tillering stage; 11, radicle at 48h after emergence; 12, root at the trefoil stage; 13, young culm at the booting stage; 14, young culm at the heading stage; 15, developing panicle of 0.1–1cm in length; 16, developing panicle of 1–5cm in length; 17, developing panicle of 5–10cm in length; 18, developing panicle of 10–15cm in length; 19, developing panicle of 15–20cm in length; 20, developing panicle of 20–25cm in length; 21, panicle at the heading stage; 22, panicle on the day of flowering; 23, hull at 2 days after pollination (DAP); 24, hull at 5 DAP; 25, hull at 8 DAP; 26, endosperm at 2 DAP; 27, endosperm at 5 DAP; 28, endosperm at 8 DAP. (B) Comparison of GS5 transcripts in NIL(ZS97) and NIL(H94) during young panicle development. All data are presented as the mean ±SE (n ≥3). *P<0.05; **P<0.01, t-test. (This figure is available in colour at JXB online.)