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Progress on genetic and genomic research for enhanced oil.content and qual.ty in peanut

Oil.Crop science 2016年第1期1卷 1-8页

作者： Boshou l.AO Yong l.I l. HUANG sil.ng CHEN Xiaoping REN l.ying YAN Yurong l. Dongxin HUAI Xiaojing ZHOU l.yun WAN Yuning CHEN Wei HUA Huifang JIANG Oil.Crops Research Institute of Chinese Academy of Agricul.ural.sciences Wuhan 430062 P. R. China Cereal.and Oil.Crops Research Institute of Hebei Academy of Agricul.ural.and Forestry sciences Shijiazhuang 050035 P. R. China

Peanut or groundnut （ arachis hypogaea l. ） is an important source of vegetabl. oil. in the worl.. Genetic enhancement for high yiel. and high oil.content has greatl. contributed to enhanced pro-ductivity of peanut and increased suppl. of peanut oil. Further improving oil.content and qual.ty of peanut is stil. crucial.for increasing productivity of arabl. l.nd and market competitiveness of peanut oil. Based on investigation among the peanut germpl.sm accessions incl.ding wil. arachis species, the oil. content coul. 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 al.el.s with major and minor additive effects. Improved testing techniques for oil.content in breeding l.nes with reduced cost have accel.rated breeding progress for high oil.content. ssR markers associated with oil.content have been identified by association and l.nkage anal.sis. The stabil.ty of oil.content in peanut across seasons and l.cations is highl. associated with col. tol.rance, high nutrition efficiency and drought tol.rance. Recent progress on improving fatty acids in particul.r marker assisted backcrossing breeding has contributed to higher qual.ty peanut oil.and other products. High oil.peanut l.nes with im-proved resistance to afl.toxin production have been devel.ped. The wil. arachis species woul. be of great val.e for peanut breeding in increasing oil.content.

关键词： s: arachis hypogaea l. wil. arachis species oil.content ol.ic acid fatty acid compo-nents resistance to afl.toxin production heterosis marker assisted breeding

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