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. 2019 Sep 25;36(3):181–185. doi: 10.5511/plantbiotechnology.19.0814a

Figure 2. Microsporogenesis and pollen grain of Oncidium “Honey Snow” MF-1. (A) Chromosomal laggard at anaphase I stage during microsporogenesis. The laggard caused some chromatids to separate unequally into daughter cells. (B) Microspore formation showing abnormal types of diads and hexads (right panel), as well as triads and tetrads of various sizes (left panel). Unequal chromatid separation caused the abnormal microspore formation. (C) Pollen grains showing irregular shape, abnormal development of cell shape, and cell content. Acetocarmine staining was not homogenous in pollen cells. Scale indicates 50 µm.

Figure 2. Microsporogenesis and pollen grain of Oncidium “Honey Snow” MF-1. (A) Chromosomal laggard at anaphase I stage during microsporogenesis. The laggard caused some chromatids to separate unequally into daughter cells. (B) Microspore formation showing abnormal types of diads and hexads (right panel), as well as triads and tetrads of various sizes (left panel). Unequal chromatid separation caused the abnormal microspore formation. (C) Pollen grains showing irregular shape, abnormal development of cell shape, and cell content. Acetocarmine staining was not homogenous in pollen cells. Scale indicates 50 µm.