论文部分内容阅读
克尔伯(E. R. Kerber)关于六倍体小麦Triticum aestivum L. (AABBDD,2n=24)中分离四倍体成分AABB(2n=28)的报导,开始了小麦遗传进化学研究的新方向。AABBDD染色体组的重组,能用来解决小麦系统发育的一系列问题和确定基因在染色体组的位置。已经提出的方法能用来选择较低倍数性的基因型变异,但是由于同源染色体位点的补偿作用,六倍体不能表现出来。可能,能在二倍体小麦与具有AABB基因的植物亲本间获得六倍体的双二倍体。这种具有AABB基因的亲本是小麦的
E. Kerber’s report on the isolation of the tetraploid component AABB (2n = 28) from the hexaploid wheat Triticum aestivum L. (AABBDD, 2n = 24) started a new direction in the field of genetic evolution of wheat. The recombination of the AABBDD genome can be used to solve a series of problems in the development of the wheat system and to determine the location of the gene in the genome. The proposed method can be used to select lower-fold genotypic variations, but hexaploid can not be demonstrated due to the compensation of homologous chromosomal loci. It is possible to obtain hexaploid diploids between diploid wheat and a plant parent with the AABB gene. This parent with the AABB gene is wheat