摘要
Yield is a complex trait that is determined predominantly by the number,size,and weight of grain produced by a plant,which are all in fluenced by multiple genes and environ mental factors.In cereals,grain size is in flue need by envir on mental signals including nutrient availability and temperature,and by variation for genes that control the dimensions of a grain or the size of floral organs(e.g.,Heang and Sassa,2012;Brinton et al.,2017;Adamski et al.,2021;Liu et al.,2021;Xiao et al.,2021).Three recent studies have investigated subspecies of tetrapioid and hexapioid wheat that produce Ion ger grains,which form in florets that contain elongated floral structures(Adamski et al.,2021;Liu et al.,2021;Xiao et al.,2021);their findings provide new understanding of the genes controlling floret architecture,which could be used by breeders to enhance grain size and yield.
基金
This work is supported by grants from the Australian Research Council(DP210103744)
Biotechnology and Biological Sciences Research Council(BB/T007133/1)
to S.B and Biotechnology and Biological Sciences Research Council(MR/S031677/1)to L.D.
