Reorganization of wheat and rye genomes in octoploid triticale (× Triticosecale).

ABSTRACT:

Main conclusion

The analysis of early generations of triticale showed numerous rearrangements of the genome. Complexed transformation included loss of chromosomes, t-heterochromatin content changes and the emergence of retrotransposons in new locations. This study investigated certain aspects of genomic transformations in the early generations (F5 and F8) of the primary octoploid triticale derived from the cross of hexaploid wheat with the diploid rye. Most of the plants tested were hypoploid; among eliminated chromosomes were rye chromosomes 4R and 5R and variable number of wheat chromosomes. Wheat chromosomes were eliminated to a higher extent. The lower content of telomeric heterochromatin was also found in rye chromosomes in comparison with parental rye. Studying the location o

SUBMITTER: Kalinka A 

PROVIDER: S-EPMC5856900 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature