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. 2018 Aug 21;9:1227. doi: 10.3389/fpls.2018.01227

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Copyright © 2018 Zhao, Zhang, Wang, Wang, Xu, Gao and Liu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Development of young ears in WT and sk-A7110. (A,F) Ear at the elongating stage. (B,G) Ear at the spikelet late-differentiation stage. (C,H) Ear at the floret pre-differentiation stage. Every floret includes a pair of glumes, three stamen primordia, and one pistil primordium. (D,E) Normal ear at the floret late-differentiation stage. The pistil primordia bulged and began to elongate rapidly. (I,J) The sk-A7110 ear at the floret late-differentiation stage. The pistil primordia shrinked and began to degenerate (Red arrowhead).SM, Spikelet meristem; st, Stamen primordium; pi, Pistil primordium; gl, Glume. Bars = 100 μm in (A,C,F,H) and 50 μm in (B,D,E,G,I,J).