甘蓝型油菜有、无花瓣近等基因系花器官的比较研究  

A comparison of nower organs between apetalous near-isogenic lines in rapeseed (B. napus L.)

作　　者：张洁夫[1,2] 傅寿仲[2] 戚存扣[2] 浦惠明[2] 陈玉卿[2] 陈新军[2] 高建芹[2] 

机构地区：[1]南京农业大学作物遗传与种质创新国家重点实验室,江苏南京210095 [2]江苏省农业科学院经济作物研究所,江苏南京210014

出　　处：《中国油料作物学报》2003年第3期1-4,共4页Chinese Journal of Oil Crop Sciences

基　　金：国家自然科学基金(30170583);江苏省自然科学基金(BK2001174);江苏省高新技术项目(BG2002303)

摘　　要：比较甘蓝型油菜有、无花瓣近等基因系花器官的形态差异,结果表明,无花瓣品系在花蕾、花萼、雌蕊长度上与有花瓣品系无差异,汉雄蕊长度有所下降;无花瓣品系因缺少花瓣,花蕾重量仅为有花瓣品系的55.89％,但花萼、雄蕊、雌蕊重量差异不大,其中花萼和雄蕊重量略有下降,而雌蕊重量则上升。无花瓣品系花器官各部分与有花瓣品系间的差异主要表现在花瓣缺失上,而花萼、雄蕊、雌蕊、花粉、柱头和蜜腺等形态均无明显差异,因此,该油菜花瓣缺失类型可能与拟南芥等植物花器官发育的ABC模型不符。The flower of apetalous near -- isogenic lines in rapeseed was compared. Results showed that there were no difference in the length of bud, sepal and pistil between the apetalous and petalous lines, while the stamen length of apetalous line was significantly shorter than that of the petalous. Owing to the loss of petal, the bud weight of apetalous line was only 55.89% as compared with the petalous, but there was little difference in the weight of sepal, stamen and pistil. The difference of flower shape between the apetalous and petalous lines was mainly at the loss of petal, while the sepal, stamen, pistil, pollen, stigma and nectary were same shaped. So the mechanic of a- petalous mutant in rapeseed was different with the ABC model of nower deyelopment in Arabidopsis.

关 键 词：甘蓝型油菜 有花瓣品系 无花瓣品系 近等基因系 花器官 比较研究 

分 类 号：S565.4[农业科学—作物学]