Chromosome engineering of pollen wheat

Chromosome engineering of pollen wheat is the new procedure combining anthe r culture and chromosome engineering techniques. It could transfer useful a lien genes into wheat varieties, enhancing genetic diversity for investigat ion of genetics and breeding. In the present study, two new procedures, at genome level and single chromosome level, were established. Compared with t he classical chromosome engineering, the chromosome engineering of pollen w heat has the following main characters: (i) diversity of products, (ii) rap id stability and (iii) high efficiency of selection. Experiments indicated that chromosome engineering of pollen wheat is an efficient way for creatin g alien translocation line, especially non-Robertsonian translocation line. Meanwhile, using this procedure combined with comprehensive identifying me thods, the investigation of useful genes and molecular markers on rye chrom osomes 1R and 6R respectively has been done. The roles and relationships be tween chromosome engineering of pollen wheat and gene engineering on crop i mprovement were discussed.