四色相(等间隔)配色;
The tetrads eventually shrivel or are resorbed.
这种四分体最终萎缩或被再吸收.
Super-microspore happened in the 5 % ~30 % or more tetrads and its formation was directly concerned with B-chromosome.
四分体中额外小孢子的形成与B - 染色体直接有关,其频率为5%~30%或更高.
Cytokinesis is of the simultaneous type and microspore tetrads are mainly tetrahedral.
小孢子母细胞减数分裂为同时型.
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