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. 2020 Nov 16;11:600820. doi: 10.3389/fpls.2020.600820

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Copyright © 2020 Fu, Wang, Shen, Zhang, Higgins and Liang.

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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Phenotypic comparison between wild-type and osbrca2-1 mutant. (A) Wild-type and osbrca2-1 plants after heading. (B) Wild-type and osbrca2-1 panicles showing fertile and infertile grains, respectively. (C) Wild-type and osbrca2-1 spikelets after removing lemma. (D) Wild-type and osbrca2-1 pistils at stage 12. (E) Wild-type (left) and osbrca2-1 (right) anthers. (F) I₂-KI staining of wild-type and (G) osbrca2-1 pollen grains at mature stage. Bars = 5 cm in (A) and (B), 5 mm in (C), 1 mm in (D) and (E), and 100 μm in (F) and (G).