Erratic Male Meiosis Resulting in 2𝑛 Pollen Grain Formation in a 4x Cytotype (2𝑛=28) of Ranunculus laetus Wall. ex Royle

Figure 2

(a–e) Meiocytes with normal meiotic behaviour in R. laetus. (a) A PMC with 14 bivalents at diakinesis. (b) A PMC showing 14 : 14 chromosomes distributions at A-I. (c) A PMC showing two poles at A-I. (d) A tetrad with four 𝑛 (reduced) microspores. (e) Apparently stained fertile 𝑛 (reduced) pollen grains. Scale bar = 10 μm (a–d); 20 μm (e).

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