七宝黄金瓜EMS诱变群体的构建  

The Construction of Qibao Golden Melon EMS Mutagenesis Population

作　　者：徐美红[1] 陆文玉[1] 金明弟[1] 倪文津[1] 张燕霞[1] 关元妹 王晓磊[1] 吴锦霞[1] 

机构地区：[1]上海市闵行区农业技术服务中心,上海201101

出　　处：《分子植物育种》2015年第3期601-604,共4页Molecular Plant Breeding

基　　金：沪农科种字(2014)第3-2号资助

摘　　要：七宝黄金瓜是上海地区的传统名瓜,深受广大市民喜爱,由于长期混杂种植,使其种性退化。为了使七宝黄金瓜的品质得到恢复和提升,本研究选用1.5%(v/v)EMS浓度构建了它的甲基磺酸乙酯(EMS)诱变群体。研究结果显示:EMS诱变后的种子萌发率较对照降低,仅有55.3%;诱变后单株的子叶、叶片、茎及花等器官发生了形态学的改变;收获的果实形状、颜色、瓜棱数目、果肉厚度及中心糖度等性状均有所改变。优良变异的果实,果肉厚度最高达到2.5 cm,中心糖度达到14.2度。这些优良的变异将用于七宝黄金瓜的遗传改良,提高其品质。Qibao g olden melon loved by the people of Shanghai is one of the traditional melons. However,long-term mixed cultivation made its quality degrade. In order to improve its quality, the author constructed its ethyl methanesulfonate mutagenized（EMS） population. Compared with the control group, the seed germination reduced to 55.3%. The morphologic traits changed, such as cotyledon, leaf, stem and flower organs ect; The fruit shape,color, the number and shape of thin-rib, flesh thickness and brix center were also different. Some of good changes,such as 2.5 cm flesh thickness, 14.2 degree brix center would be used for genetic improvement of Qibao golden melon.

关 键 词：七宝黄金瓜 甲基磺酸乙酯诱变群体 变异 遗传改良 

分 类 号：S65[农业科学—果树学]