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朝鲜蒲公英生殖类型确定
引用本文:张建,吴志刚,赵鑫,马铭,宁伟.朝鲜蒲公英生殖类型确定[J].中国蔬菜,2013,1(14):78.
作者姓名:张建  吴志刚  赵鑫  马铭  宁伟
作者单位:(;1. 沈阳农业大学园艺学院,辽宁沈阳 110866;;2. 农业部东北野菜种质异位保存 圃 与鉴定中心,辽; 宁沈阳 110866)
基金项目:农业部公益性行业野生植物资源保护项目
摘    要:利用根尖染 色体计数、人工授粉试验以及流式细胞仪检测等方法,确定朝鲜蒲公英为四倍体,人
工授粉试验表明朝鲜蒲公英生殖系统为兼性无融合生殖类型,无融合发生率为50% 左右;流式细胞仪 检测结
果表明种子细胞内存在3 种倍性水平2C∶3C∶4C。四倍体朝鲜蒲公英为兼性无融合生殖类型,胚乳自主发育。

关 键 词:朝鲜蒲公英  生殖系统  流式细胞仪  兼性无融合  
收稿时间:2013-03-15;

Reproductive Type Confirmation of Taraxacum coreanum Nakai
ZHANG Jian , WU Zhi-gang , ZHAO Xin , MA Ming , NING Wei.Reproductive Type Confirmation of Taraxacum coreanum Nakai[J].China Vegetables,2013,1(14):78.
Authors:ZHANG Jian  WU Zhi-gang  ZHAO Xin  MA Ming  NING Wei
Institution:(;1.College of Horticulture, Shenyang Agricultural University, Shenyang 110866, Liaoning, China; ;2.Ex-situ Conservation; Garden and Identification Center of Potherb Germplasm in Northeast China, Ministry of Agriculture,; Shenyang 110866, Liaoning, China)
Abstract:Counting root tip chromosome numbers,artificial pollination experiments and flow
cytometry,etc. were used to confirm that Taraxacum coreanum Nakai was tetraploid. Artificial
pollination experiments showed that Taraxacum coreanum reproductive type was facultative apomixes,
and apomixes rate was around 50%.The result of testing by flow cytometer showed that the ratio of seed
cell ploidy level was 2C∶3C∶4C.The reproductive type of tetraploid T. coreanum was facultative
apomixes with independent endosperm development.
Keywords:Taraxacum coreanum Nakai  Reproductive system  Flow cytometer  Facultative apomixes
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