Chromosome Structure in Cereals: The Analysis of Regions Containing Repeated Sequence DNA and Its Application to the Detection of Alien Chromosomes Introduced into Wheat

  • R. Appels
Part of the Basic Life Sciences book series (BLSC, volume 26)


The concept of chromosome engineering of plants is well established in plant breeding. As early as 1937 Blakeslee and Avery commented in their article on chromosome doubling by colchicine that “with increasing knowledge of the constitution of chromosomes and of methods whereby their structure and behavior may be altered, there arises an opportunity for the genetic engineer who will apply knowledge of chromosomes to building up to specification forms of plants adapted to the surroundings in which they are to grow, and suited to specific economic needs.” The colchicine doubling technique which inspired this comment was taken up by plant breeders who had been interested in producing wheat-rye hybrids. Routine production of colchicine doubled wheat-rye hybrids with some fertility allowed intensive plant breeding for improved fertility, yield, seed quality, etc. (14,29,46). The breeding effort has resulted in recent years in many farmers around the world growing triticale as a crop. More directed chromosome engineering has been carried out for introducing alien chromosome segments carrying disease resistance (37,55,56).


Chromosome Structure Heterochromatic Region rDNA Region Secondary Constriction Alien Chromosome 
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Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • R. Appels
    • 1
  1. 1.Division of Plant IndustryCSIROCanberra CityAustralia

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