Figure 2.

Vegetative and Inflorescence Traits in gif1-2.

(A) Whole plants during vegetative development.

(B) Excised mature leaf blades.

(C) Mature tassels. gif1-2 has fewer tassel branches.

(D) Immature, unpollinated ears. gif1-2 has fasciated ears.

(E) to (H) Male and female inflorescence observed by scanning electron microscopy. Male (E) and female (G) inflorescences of the wild type, and male (F) and female (H) inflorescences of gif1-2; gif1-2 has a fasciated inflorescence meristem in the tassel and ear.

(I) Entire ear of gif1-2 (5xB73).

(J) Outer nine husk leaves excised. Most husk leaves enclosed small axillary ears (white asterisks).

(K) Remaining husk leaves and any axillary ears (asterisks) excised. The primary ear is marked with a red star.

(L) Close-up of primary ear.

(M) Close-up of an axillary ear.

(N) A second axillary husk ear.

(O) Pistil. gif1-2 generates multiple silks per floret.

(P) Unfused carpels of the silk of gif1-2. Arrow points to expanded nucellus.

(Q) Internodes with leaves removed. gif1-2 has short and asymmetric internodes.

Bars = 100 μm in (E) to (H) and (L) to (N).