Science. 1964 Jan 17;143(3603):253-5. doi: 10.1126/science.143.3603.253.
The tetraploid AABB genomic component of two varieties of common hexaploid wheat (AABBDD; 2n = 42) was reconstituted by a simple back-crossing technique in which known phylogenetic relationships between the hexaploid and tetraploid groups of Triticum were used. The reconstituted tetraploids do not closely resemble commonly described varieties of the present-day group of tetraploid species. The plants are dwarfed, lack vigor, and are partially or completely self-sterile, depending on the variety of the hexaploid source. Chromosome pairing is similar to that observed in a variety of durum wheat (AABB; 2n = 28). Synthetic hexaploids derived from hybrids between one of the reconstituted tetraploids and several strains of Aegilops squarrosa (D genome) are of normal growth and vigr and are highly fertile.
两个普通六倍体小麦品种（AABBDD；2n=42）的四倍体 AABB 基因组成分通过简单的回交技术得以重建，该技术利用了六倍体和四倍体小麦组之间已知的系统发育关系。重建的四倍体与当今四倍体物种组中常见的描述品种不太相似。这些植物生长矮小，缺乏活力，并且根据六倍体来源的品种不同，部分或完全自交不育。染色体配对与在各种硬粒小麦（AABB；2n=28）中观察到的相似。由其中一个重建四倍体与几种节节麦（D 基因组）杂交产生的合成六倍体生长和活力正常，并且高度可育。
