甘蓝型油菜温敏细胞核雄性不育系160S花药败育的形态学特征和细胞学研究

唐鑫, 李圆圆, 陆俊杏, 张涛

Morphological characteristics and cytological study of anther abortion of temperature-sensitive nuclear male sterile line 160S in Brassica napus

TANG Xin, LI Yuan-Yuan, LU Jun-Xing, ZHANG Tao

图3 160S-MF花药不同发育阶段的显微结构 A和B: 造孢时期; C: 花粉母细胞时期; D: 减数分裂时期; E: 四分体时期; F: 单核靠边期; G: 双核期; H和I: 成熟花粉粒; Epi: 表皮层; Mid: 中层层; En: 药室内壁; T: 绒毡层; Sp: 造孢细胞; PMC: 小孢子母细胞; Te: 四分体; M: 小孢子; Po: 花粉粒。

Fig. 3 Microscopical structure of anthers at different developmental stages in 160S-MF A, B: sporogenous cell stage; C: pollen mother cell stage; D: meiotic stage; E: tetrad stage; F: late uninucleate stage; G: binucleate stage; H, I: mature pollen; Epi: epidermal; Mid: middle layer; En: endothecium; T: tapetum; Sp: sporogenous cell; PMC: pollen mother cell; Te: tetrad; M: microspore; Po: pollen.