Abstract

Cytological studies have been made on three species of Paspalum, two of which were collected from natural populations while P. scrobiculatum is a cultivated species. P. commersonii consists of forms with diverse morphological varieties, occurring either as mesophyte or hydrophyte. P. scrobiculatum and P. orbiculare show regular meiosis with n=20 and 2n=40. In contrast, in P. commersonii which has a somatic number of 2n=60 meiosis is very irregular with total asynapsis of chromosomes. This species is probably of hybrid origin and apomictic. The results of the present cytological studies clearly indicate that variations in morphological characters and habit shown by these species are correlated with cytological distinctness. Therefore these three taxa deserve separate specific rank as suggested by Bor (1960).

Full Text
Paper version not known

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 call

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.