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Fig. 1 | BMC Plant Biology

Fig. 1

From: Comparative analysis of mitochondrial genomes of maize CMS-S subtypes provides new insights into male sterility stability

Fig. 1

Different sterility stability in two subtypes of CMS-S maize. a Pictures of tassel sectors on cytoplasm N, CMS-Sa, and CMS-Sb. Scale bar, 1 cm. The lower left panel show full image of each tassel. Scale bar, 10 cm. The lower right panel show representative pollen grains that stained with I-Ki solution in each subtypes. b Spontaneous reversion rate of CMS-S subtype Sa and Sb, plant with exerted anther in floret was considered as spontaneous reverted individuals. c Image of anthers in CMS-Sa and CMS-Sb. Scale bar, 1 cm. d Anther size calculated using Image J. Data are mean ± s.e.m. (n = 6). e Fertile pollen ratios, calculated as the ratio of darkly stained pollens versus the lightly stained pollens in each plantlets. f Tests of pollen viability, as illustrated by seed setting rate in representative ears pollinated using pollen from each subtypes

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