Progress on genetic and genomic research for enhanced oil content and quality in peanut  

作　　者：Boshou LIAO Yong LEI Li HUANG Silong CHEN Xiaoping REN Liying YAN Yurong LI Dongxin HUAI Xiaojing ZHOU Liyun WAN Yuning CHEN Wei HUA Huifang JIANG 

机构地区：[1]Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan 430062, P. R. China [2]Cereal and Oil Crops Research Institute of Hebei Academy of Agricultural and Forestry Sciences, Shijiazhuang 050035, P. R. China

出　　处：《Oil Crop Science》2016年第1期1-8,共8页中国油料作物学报(英文版）

摘　　要：Peanut or groundnut （ Arachis hypogaea L. ） is an important source of vegetable oil in the world. Genetic enhancement for high yield and high oil content has greatly contributed to enhanced pro-ductivity of peanut and increased supply of peanut oil. Further improving oil content and quality of peanut is still crucial for increasing productivity of arable land and market competitiveness of peanut oil. Based on investigation among the peanut germplasm accessions including wild Arachis species, the oil content could be as high as 65%. Heterosis has been observed for oil content in hybrids derived from diverse crossing parents. Segregates with enhanced oil content have been obtained by pyramiding different genes or alleles with major and minor additive effects. Improved testing techniques for oil content in breeding lines with reduced cost have accelerated breeding progress for high oil content. SSR markers associated with oil content have been identified by association and linkage analysis. The stability of oil content in peanut across seasons and locations is highly associated with cold tolerance, high nutrition efficiency and drought tolerance. Recent progress on improving fatty acids in particular marker assisted backcrossing breeding has contributed to higher quality peanut oil and other products. High oil peanut lines with im-proved resistance to aflatoxin production have been developed. The wild Arachis species would be of great value for peanut breeding in increasing oil content.

关 键 词：s： Arachis hypogaea L. wild Arachis species oil content oleic acid fatty acid compo-nents resistance to aflatoxin production HETEROSIS marker assisted breeding 

分 类 号：S565.2[农业科学—作物学]