Abstract
Hybrids between the two diploid species Festuca donax and F. drymeja had regular chromosome association, forming 7 bivalents at metaphase I. However, when the two species were crossed with a third species F. scariosa, the hybrids involving F. drymeja showed greater desynapsis than those with F. donax. When the F1 hybrid F. donax × F. drymeja was crossed with F. scariosa, the trispecific progeny could be grouped into three classes according to the degree of desynapsis recorded. Abnormalities associated with the fusion of pollen mother cells, which produced highly polyploid cells, were also observed in the trispecific hybrids. Failure of chromosomal pairing and the occurrence of syncytes is attributed to genotypic interactions.
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.
