Studies on Meiotic Behavior of Pollen Mother Cells of bitter gourd (Momordica charantia L.)

Meiotic behaviors of pollen mother cells (PMCs) of bitter gourd (Momordica charantia L.) were characterized. It was found that the pollen mother cell of bitter gourd revealed a simultaneous cytokinesis with unsynchronized phenomenon in meiotic division. Nucleolus disappeared gradually from prophase I to metaphase I, reappeared at prophaseⅡand then disappeared. Chromosome became more and more identifiable from prophase I to metaphase I, and illegible at telophase I with unwinding. Moreover, multi nucleoli was investigated in prophase I and prophase Ⅱ. Frequent polyads were observed in this study, which was likely related to the weather adversity and unsynchronized phenomenon in meiotic division.