title: [Progress on genetics of rice grain shape trait and its related gene mapping and cloning].
abstract: Increase of crop production is the primary goal of crop breeding. Rice grain shape is a quantitative trait that is directly related to yield traits and has a close relationship with quality traits. The evaluation of grain shape is mainly grain length, grain width, grain thickness, length/width, and length/thickness. In recent years, the quantitative genetic research on rice grain shape has made a significant progress and a number of important genes associated with rice grain shape have been cloned. This paper reviews the classic genetic analysis on rice grain traits, QTL mapping, grain shape gene cloning and functional analysis, and their application in rice breeding for super high yield.
authors.affiliation: State Key Laboratory of Rice Biology/China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China. yzxjgzq@yahoo.cn
authors.forename: Zhi-Qiang
authors.initials: ZQ
authors.lastname: Gao
authors.forename: Xiao-Deng
authors.initials: XD
authors.lastname: Zhan
authors.forename: Yong-Shu
authors.initials: YS
authors.lastname: Liang
authors.forename: Shi-Hua
authors.initials: SH
authors.lastname: Cheng
authors.forename: Li-Yong
authors.initials: LY
authors.lastname: Cao
mesh_terms: D001947:Breeding; D002874:Chromosome Mapping; D003001:Cloning, Molecular; D012275:Oryza / Q000033:anatomy & histology / Q000235:genetics*; D040641:Quantitative Trait Loci