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. 2022 Apr 29;13:890568. doi: 10.3389/fpls.2022.890568

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Copyright © 2022 Guo, Li, Xiong, Yan, Zou, Dai, Tang, Sun, Luan, Yang, Tan, Zhu, Zeng, Wang and Zhang.

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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Compatibility of WCILs. (A) Pollen grains stained by I₂-KI solution in F₁ hybrids of four crosses. Scale bar, 30 μm. (B) Spikelet fertility of the panicles in F₁ hybrids. Scale bar, 2 cm. (C) Pollen fertility and spikelet fertility of the F₁ hybrids from the crosses between WCILs (HJX74 as control) and indica testers (See Supplementary Tables 8–9). (D) Pollen fertility and spikelet fertility of the F₁ hybrids from the crosses between WCILs (HJX74 as control) and japonica testers (See Supplementary Tables 10–11). The information about nine WCILs (1121, 1123, 1127, 2221, 2223, 2227, 2721, 2723, and 2727) is given in Supplementary Table 6. HJX74 is a recipient of SSSLs. The 9311 is an indica tester. T65 is a japonica tester. Capital letters indicate statistical differences at the 0.01 probability level.