University of Isfahan Taxonomy and Biosystematics 3115-9001 2 4 2010 11 22 Systematic study of simple-leaved group of Astragalus sect. Incani DC. in Iran مطالعه سیستماتیکی گروه گون‌های برگ ساده از بخش Incani DC. در ایران 33 46 17384 EN Massoud Ranjbar Department of Biology, Faculty of Science, Bu-Ali Sina University, Hamedan Samineh Nouri Department of Biology, Faculty of Science, Bu-Ali Sina University, Hamedan Roya Karamian Department of Biology, Faculty of Science, Bu-Ali Sina University, Hamedan, Iran Journal Article 2016 06 14 In this investigation, morphological pollen characteristics of different populations of 5 species belonging to simple-leaved group of Astragalus sect. Incani DC. in Iran were studied. Results showed that all studied taxa formed two groups. In addition, chromosome number and meiotic behavior were studied in 3 populations belonging to two species of this group. All taxa were diploid and had the basic chromosome number of 2n = 2x = 16. Although the taxa represented regular meiosis, but some abnormalities such as laggard and fragmented chromosomes in anaphase/telophase I and II and diakinesis/methaphase I, cytomixis in anaphase/telophase I and II, multipolar cells in telophase II, binucleouli cells in prophase I and bridges in anaphase I and telophase II were obseved. https://tbj.ui.ac.ir/article_17384_3681b425d4d6a389882b89bcfeefe784.pdf