Abstract
Frequencies of chromosomal aberrations were examined during three successive cell generations in the root meristem of two-rowed barley following X-ray irradiation of 24-hr soaked seeds with a moderate exposure of 300R. Dicentric bridges and acentric fragments observed at anaphase and dicentrics, rings and chromosomes with obvious deletions detected at metaphase were scored. Frequencies of these chromosomal aberrations decreased rapidly with the progress of cell generation. Their rapid reduction in number, especially of the dicentric bridges which decreased much more rapidly than expected, indicates that elimination of the cells carrying aberrant chromosomes occurs in the meristematic cell population. The elimination seems to be attributable to the loss of reproductive integrity of the cells carrying such aberrations, probably as a result of the loss of chromosome segments.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
