黄瓜核心种质果实VC含量遗传多样性分析  

Genetic Diversity Analysis of Fruit Vitamin C Content in Cucumber Core Germplasm

作　　者：王壮壮 董邵云[2] 张丛莹 顾兴芳[2] 苗晗[2] 刘小萍 官健涛 徐奎鹏 张圣平[2] WANG Zhuangzhuang;DONG Shaoyun;ZHANG Congying;GU Xingfang;MIAO Han;LIU Xiaoping;GUAN Jiantao;XU Kuipeng;ZHANG Shengping(College of Horticulture,Qingdao Agricultural University,Qingdao 266000,Shandong,China;State Key Laboratory of Vegetable Biobreeding,Institute of Vegetable and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China;China Vegetable Seed Technology Co.,Ltd.(Beijing),Beijing 100081,China)

机构地区：[1]青岛农业大学园艺学院,山东青岛266000 [2]中国农业科学院蔬菜花卉研究所,蔬菜生物育种全国重点实验室,北京100081 [3]中蔬种业科技(北京)有限公司,北京100081

出　　处：《中国蔬菜》2023年第5期79-87,共9页China Vegetables

基　　金：国家现代农业产业技术体系项目(CARS-23);中国农业科学院创新工程项目(CAAS-ASTIP-2017-IVF);农业农村部园艺作物生物学与种质创制重点实验室项目。

摘　　要：黄瓜是我国重要的大宗蔬菜种类之一,VC含量是黄瓜果实内在品质的重要指标。采用紫外分光光度法,对不同季节种植的106份黄瓜核心种质果实VC含量进行测定,分析其遗传多样性并筛选高VC含量种质。结果表明,黄瓜果实VC含量受季节影响显著,2个春季之间具有较强的相关性,春、秋季之间相关性相对较低;整体来看,印度类型黄瓜种质果实VC含量高于东亚类型、欧洲类型和西双版纳类型。对64份在3个季节均测定到VC含量的黄瓜种质进行聚类分析,结果在相关系数为2时可将核心种质划分为4个类群,筛选出CG12(TGR580)、R89(唐秋选)、R97(绿宝石选)、CG97(大刺黄瓜)等4份稳定的高VC含量材料。Cucumber is an important vegetable crop in China,and the vitamin C(VC)content is an important indicator of the intrinsic quality of cucumber fruit.The VC content in fruits of 106 cucumber core accessions planted in different seasons were determined by UV spectrophotometry,the genetic diversity was analyzed and high VC content germplasm was screened.The results showed that the VC content of cucumber fruit was significantly affected by seasons,with a strong correlation between the two springs and weak correlation between spring and autumn.Overall,the VC content of Indian type germplasm fruits was higher than that of East Asian type,European type and Xishuangbanna type.The results of cluster analysis showed that when the Pearson correlation coefficient was 2,64 cucumber core germplasm were divided into four clusters according to fruit VC content,and four accessions with high VC content including‘TGR 580’‘Tangqiuxuan’‘Lyubaoshixuan’and‘Dacihuanggua’were selected.

关 键 词：黄瓜 VC含量 种质资源 遗传多样性 聚类分析 

分 类 号：S642.2[农业科学—蔬菜学]