KARYOTYPE ANALYSIS AND NEW CHROMOSOME NUMBERS OF SOME SPECIES OF EUPHORBIA L. (EUPHORBIACEAE) IN IRAN
Publish place: The Iranian Journal of Botany، Vol: 22، Issue: 1
Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJB-22-1_012
تاریخ نمایه سازی: 27 آذر 1402
Abstract:
The somatic chromosome numbers and karyotype features of ۱۵ species of Euphorbia (Euphorbiaceae) from Iran were analyzed. The chromosome counts of four species including E. inderiensis (۲n=۱۸), E. polycaulis (۲n=۱۸), E. phymatosperma (۲n=۱۶) and E. gypsicola (۲n=۵۴) are reported for the first time, while the chromosome number of ۱۱ more studied species are confirmed. We also confirm the occurrence of two different cytotypes in E. microsciadia: one diploid (۲n=۱۸) and the other tetraploid (۲n=۳۶). 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= ۷, ۸, ۹ and ۱۰ within the genus, indicating the potential evolutionary importance of such data in the genus.
Authors
Jeren Fasihi
Department of Plant Science, School of Biology, College of Science, University of Tehran
Shahin Zarre
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. ۱۴۱۵۵-۶۴۵۵.
Nasim Azani
Department of Plant Science, School of Biology, College of Science, University of Tehran.
Yasaman Salmaki
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. ۱۴۱۵۵-۶۴۵۵.
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