Mechanisms and control of rapid genomic changes in flax.

ABSTRACT:

Background and aims

The nuclear DNA of certain varieties of flax (Linum usitatissimum) can vary within a single generation when the plants are grown under specific environmental conditions. This review details the genomic variations that have been identified and associated with this environmental response.

Conclusions

The variation occurs across the whole spectrum of sequence repetition and has been shown to occur in the highly repeated, middle repetitive and low copy number sequences. Although the variation has been shown to be spread throughout the genome it does not occur at random, as similar molecular events have been shown to occur repeatedly. The changes in two labile regions in the nucleus, the ribosomal RNA genes and a site-specific insertion event, have been shown

SUBMITTER: Cullis CA 

PROVIDER: S-EPMC4246718 | biostudies-literature | 2005 Jan

REPOSITORIES: biostudies-literature