芹菜花粉母细胞减数分裂观察.pdf

2011, 23( 4) : 70 ~ 71 A cta A gr iculturae J iangx i * 赵 冬, 张蜀宁 , 张 宇, 李俊星, 刘惠吉 ( , 2 10095) : 以中国芹品种铁杆芹花蕾为材料, 采用改良卡宝 色压片法对芹菜花粉母细胞减数分裂进行了细胞学研究结 果表明: 花粉母细胞减数分裂为胞质同时型, 四分体为正四面体型或十字交叉型, 中期和中期细胞可见赤道板外 色体, 后 期和后期部分细胞出现 色体桥及落后 色体 : 芹菜 花粉母细胞 减数分裂 : S636. 3 : A : 1001- 8581( 2011) 04 - 0070 - 02 Observation on M eio sis of Pollen M other Cells in Ap ium graveo lens * ZHAO D ong, ZHANG Shu - n ing , ZHANG Yu, L I Jun- x ing, L IU H u i- j i ( Co llege of H orticu lture, N an jing A gricu ltura l U niversity K ey Op en ing Laboratory of Southern V egetable Crop G enetic Improve m ent, M in istry of A gr iculture, N anj ing 210095, China) A bstract: The flow er buds o f ce le ry (Ap ium g rav eolens ) w ere u sed to stu dy the m itosis in po llen m other ce lls w ith enzym e- dye- squash techniqu e. The result s show ed th at the po llen m othe r cells carr ied on their m eiosis and cy tok inesis smi ultaneou sly and the ir tet rads w ere te trahedra l or decu ssate type a tm etaphases and there show ed a sm a ll number of chromosom es sca ttered outs ide their e qu ator ia l p la te at anaph ases and there app eared chromosom e bridges and lagg ed chromo som es in som e po llen mother ce lls. K ey w ords: A p ium g rav eolens P ollen m other cells M e iosis (Ap ium graveolens L. ) 2 I: , , , 2n= 2x = 22, , ( 1- A ) , , , , , , ( 1- B) , , , , , [ 1] ( 1- C) , , , , , X ( 1- D) , , , ( 1 1- E ), 11 11, ( 1- F) ( 1- G ), 1. 1 , ,