Abstract
The present study shows the meiotic behaviour in two species of Asteraceae family. Erigeron annuus (2n=27) and Eupatorium adenophorum (2n=51) are triploid (i.e. 3x based on x=9 and x=17, respectively) appear to be apomictic in nature due to the presence of highly abnormal meiotic course and high pollen sterility but with normal seed setting. Meiosis in these species is characterized by the formation of many univalents and trivalents with a few bivalents. Anaphases and telophases are highly abnormal with the formation of many laggards and micronuclei during microsporogenesis. Cytomixis is also a common phenomenon noticed in all Eupatorium adenophorum populations. Pollen sterility varies from 40-71%. Both the species are widespread in nature and grow as weeds certainly reproduce through asexual means.
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 callMore From: Zenodo (CERN European Organization for Nuclear Research)
Disclaimer: 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.
