Abstract
A total of 72 meiotic chromosome numbers were determined for 58 taxa representing 23 genera of Acanthaceae from the United States, Mexico, Panama, and Peru. Chromosome numbers of 41 of these taxa are reported for the first time. Chromosome numbers obtained in Aphanosperma (n = 18), Chalarothyrsus (n = 18), Gypsacanthus (n = 18), Ixtlania (n = 14), Razisea (n = 18), and Teliostachya (n = 9) are the first for these genera. Our counts for Dicliptera resupinata (n = 40), Elytraria imbricata (n = 12), Justicia pectoralis (n = 11), and Yeatesia mabryi (n = 18) differ from previously published numbers for these species. Constancy of chromosome number appears to be characteristic of certain genera of Acanthaceae whereas variation due to polyploidy and aneuploidy occurs in others. Various generic relationships are discussed with respect to the chromosome numbers now known for neotropical Acanthaceae.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.