TY - JOUR ID - 106637 TI - KARYOTYPE ANALYSIS AND NEW CHROMOSOME NUMBERS OF SOME SPECIES OF EUPHORBIA L. (EUPHORBIACEAE) IN IRAN JO - The Iranian Journal of Botany JA - IJB LA - en SN - 1029-788X AU - Fasihi, Jeren AU - Zarre, Shahin AU - Azani, Nasim AU - Salmaki, Yasaman AD - Department of Plant Science, School of Biology, College of Science, University of Tehran AD - Center of Excellence of Living Organisms in Iran and Department of Plant Science, School of Biology, College of Science, University of Tehran, P.O. Box. 14155-6455. AD - Department of Plant Science, School of Biology, College of Science, University of Tehran. Y1 - 2016 PY - 2016 VL - 22 IS - 1 SP - 65 EP - 71 KW - Cytotypes KW - Euphorbia KW - flora of Iran KW - karyology KW - Taxonomy KW - Evolution DO - 10.22092/ijb.2016.106637 N2 - The somatic chromosome numbers and karyotype features of 15 species of Euphorbia (Euphorbiaceae) from Iran were analyzed. The chromosome counts of four species including E. inderiensis (2n=18), E. polycaulis (2n=18), E. phymatosperma (2n=16) and E. gypsicola (2n=54) are reported for the first time, while the chromosome number of 11 more studied species are confirmed. We also confirm the occurrence of two different cytotypes in E. microsciadia: one diploid (2n=18) and the other tetraploid (2n=36). The karyotypes are often symmetrical composing mainly of metacentric and submetacentric chromosomes. The results also confirm the presence of different basic chromosome numbers including x= 7, 8, 9 and 10 within the genus, indicating the potential evolutionary importance of such data in the genus. UR - https://ijb.areeo.ac.ir/article_106637.html L1 - https://ijb.areeo.ac.ir/article_106637_acecd5a51eda62d8f8af7077d7bea018.pdf ER -