The majority of cultivated wheat varieties have glaucous spikes, leaves and leaf sheaths, and the non-glaucous phenotype is rare in modern varieties. The glaucousness/non-glaucousness phenotype is not selectively neutral. It was expected that wild wheat may be the source of the allele to control non-glaucousness. We developed near-isogenic lines of durum wheat ‘LD222’ for glaucousness inhibitor loci Iw1, Iw3 and Iw4 derived from wild relatives. The Iw1 locus was derived from ‘MG4343’, an accession of Triticum dicoccoides (Körn. ex Asch. et Graebn.) Schweinf. (2n = 4x = 28, BBA^uA^u genome), and Triticum aestivum L. s. str. (2n = 6x = 42, BBA^uA^uDD genome) ‘Shamrock’. The Iw3 locus in chromosome arm 1BS is unique in tissue specificity of wax regulation in the spikes. The Iw3 locus was introduced from the lines that originated from crosses with T. dicoccoides and Aegilops speltoides Tausch (2n = 2x = 14, SS genome) for two near-isogenic lines. The allelic variation for A-genome non-glaucous gene has not been recorded in polyploid wheat. The Iw4^m allele for non-glaucousness was introduced from the wild einkorn, Triticum boeoticum Boiss. (2n = 2x = 14, A^mA^m genome).

大多数栽培小麦品种具有白霜穗、叶和叶鞘，现代品种中少见非白霜表型。白光/非白光表型不是选择性中性的。预计野生小麦可能是控制无白霜的等位基因的来源。我们开发了近等基因的硬粒小麦 'LD222' 系，用于来自野生近缘种的白霜抑制基因座Iw1、Iw3和Iw4。所述IW1轨迹是从“MG4343”，的加入衍生野生二粒小麦（光辉。前阿希。等Graebn）Schweinf。（2n = 4x = 28，BBA ^u A ^u基因组）和小麦。海峡 (2n = 6x = 42, BBA ^u一个^ü DD基因组）“三叶草”。染色体臂 1BS 中的Iw3基因座在穗状花序中蜡调节的组织特异性方面是独一无二的。所述IW3基因座从源自杂交与线引入T.野生二粒和山羊speltoides Tausch（2N = 2×= 14，SS基因组）两个近等基因系。在多倍体小麦中尚未记录到 A 基因组非白光基因的等位基因变异。用于非白霜性的Iw4 ^m等位基因是从野生单粒小麦Triticum boeoticum Boiss 中引入的。（2n = 2x = 14，A ^m A ^m基因组）。