Cytological Analysis of Synaptonemal Complex Protein ZYP1 during Meiosis in Autopolyploid Brassica rapa
Abstract：To understand the cytological mechanism of pairing and synapsis of homologous chromosomes in polyploid plants,the synaptonemal complex protein ZYP1 was cytologically analysed using immunostaining during meiotic prophase Ⅰ in autopolyploid Brassica rapa in comparison with diploid counterparts. The results showed that, compared with diploids, autopolyploids showed a regular meiosis course including normal pairing,synapsis and separation of homologous chromosomes,and a similar dynamic behavior of ZYP1 protein. However, the fluorescence signal of ZYP1 revealed by their specific antibody was significantly enhanced in autopolyploids in contrast with diploids. Therefore, the present study indicated that autopolyploids probably increased the expression level of ZYP1 protein to coordinate pairing and synapsis of homologous chromosomes,to ensure a normal meiosis behavior in polyploid plants.
Keywords：meiosissynaptonemal complexZYP1autoteraploidBrassica rapa
Publication Date：2017-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 78-82 )