摘要
花生是主要的油料作物,脂肪酸组成受环境等的影响而不稳定。本研究选取60份黄淮及长江流域产区主推的花生品种,连续2年在湖北武汉、河北石家庄、河南濮阳和河南周口4个环境下种植,利用GB/T5510-2011法检测种子脂肪酸含量。结果表明,高油酸花生品种油酸含量比普通油酸品种稳定,普通油酸品种棕榈酸和亚油酸含量比高油酸品种稳定;武汉种植环境有利于花生油酸含量的提高,2年60份品种的平均油酸含量均最高,分别为52.93%和52.64%;高油酸花生品种除油酸含量显著提高外,花生烯酸含量也提高了54.1%;而棕榈酸和亚油酸含量分别降低了45.20%和90.44%。结合前期SSR研究结果,本研究涉及的6份高油酸品种属于不同的类群(G1、G2c和G2e),其遗传背景差异较大。本研究结果为花生品种的合理布局和进一步的遗传改良提供了理论依据。
Peanut is an important oil crop,and its fatty acids contents were not stable due to different environments grown.In this study,60 peanut varieties including six accessions with high oleic acid and 54 accessions with normal oleic acid widely grown in Huanghuai and Yangtze river areas were planted in four ecological regions of Wuhan,Shijiazhuang,Puyang,and Zhoukou in 2016–2017.After harvesting,the dried mature seeds were tested for fatty acid content according to the method in GB/T 5510-2011.The content of oleic acid in peanut varieties with high oleic was more stable than that with normal oleic acid.However,the contents of palmitic and linoleic acids were more stable in normal oleic acid varieties than in high oleic acid cultivars.Regarding the effect of environment grown on the fatty acids,the content of oleic acid of cultivars grown in Wuhan was higher than that grown in other regions in the present study,with the average of 52.93%and 52.64%in the two years.Comparing the fatty acid composition between high oleic varieties and normal oleic varieties,the arachidonic acid content was significantly increased by 54.10%,besides the significant increase of oleic acid content in high oleic varieties.However,the palmitic and linoleic acids were much less in high oleic varieties than in normal oleic varieties,reduced by 45.20%and 90.44%respectively.Combined with the diversity of the 60 varieties by SSR technique previously,the six high oleic acid varieties should be in different groups(G1,G2c,and G2e),showing considerable large genetic variations.These results from the present study provide a basis for the reasonable planting layout and further genetic improvement of peanut varieties.
作者
郭建斌
吴贝
陈伟刚
黄莉
陈玉宁
周小静
罗怀勇
刘念
任小平
姜慧芳
GUO Jian-Bin;WU Bei;CHEN Wei-Gang;HUANG Li;CHEN Yu-Ning;ZHOU Xiao-Jing;LUO Huai-Yong;LIU Nian;REN Xiao-Ping;JIANG Hui-Fang(Oil Crops Research Institute,China Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Oil Crops,the Ministry of Agriculture and Rural Affairs,Wuhan 430062,Hubei,China)
出处
《作物学报》
CAS
CSCD
北大核心
2019年第5期676-682,共7页
Acta Agronomica Sinica
基金
国家自然科学基金项目(31471534
31571713
31801403
31871666)
农作物种质资源保护项目(2017NWB033)
国家农作物种质资源共享服务平台项目(NICGR2017-36)
国家现代农业产业技术体系建设专项(CARS-13-种质资源评价)资助~~
关键词
花生
脂肪酸
油酸
稳定性
cultivated peanut
fatty acid
oleic acid
stability
