Fig. 1From: Application of a modified drop method for high-resolution pachytene chromosome spreads in two Phalaenopsis speciesExamination of meiotic chromosome stage in pollen mother cells (PMCs). Pachytene stage in P. aphrodite subsp. formosana (a) and in P. equestris (b). Chromosomes at prometaphase I, metaphase I (c) and tetrad stages (d) of PMCs from P. aphrodite subsp. formosana. PMCs were stained with 1 % acetocarmine, scale bar = 20 μmBack to article page