A synopsis of the cytogenetics of the genus Phlomoides (Lamiaceae) in Iran. Issue 4 (1st October 2016)

• Record Type: Journal Article
• Authors: Ranjbar, Massoud; Mahmoudi, Chonour; Jahaniyan, Sepideh
• Is Part Of: Caryologia. Volume 69:Issue 4(2016)
• Page Start: 330
• Page End: 338
• Publication Date: 2016-10-01
• Subjects: Chromosome number -- Lamiaceae -- meiotic study -- Phlomoides; Cell nuclei -- Periodicals; Cytogenetics -- Periodicals; Cytology -- Periodicals; 571.66
• DOI: 10.1080/00087114.2016.1224402
• Languages: English
• ISSNs: 0008-7114

Abstract

Abstract: The present study reports the chromosome number and meiotic behavior of 11 populations belonging to four species of Phlomoides (L.) Moench. All populations showed the diploid chromosome number 2 n = 2 x = 22; consistent with the proposed base number of x = 11. Almost all taxa studied here displayed regular bivalent pairing and chromosome segregation at meiosis. However, meiotic abnormalities observed included varied degree of fragmented chromosomes, laggards and bridge in anaphase I to telophase II, precocious division of centromeres, asynchronous nucleus and cytomixis. In addition, a survey on chromosome counts of different species belonging to the genus Phlomoides throughout the world is presented and the base chromosome numbers and polyploidy levels discussed here.