First karyotype analysis of Nerium oleander populations in Iran
Publish place: Botanical Journal of Iran، Vol: 22، Issue: 2
Publish Year: 1400
Type: Journal paper
Language: English
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Document National Code:
JR_ROST-22-2_002
Index date: 15 October 2022
First karyotype analysis of Nerium oleander populations in Iran abstract
Somatic chromosome numbers and karyotypes of five populations of Nerium oleander in Iran were determined. karyological studies showed that, all the studied populations were diploid (2n = 2x = 22). The present study is the first report of the karyotype characteristics of N. oleander. The highest values of mean chromosome length (1.45 µm) and haploid chromosome length (15.9 µm) were found in the Chabahar population. The general shape of the karyotypes, indicated symmetry for all populations, as all chromosomes were metacentric type. According to Stebbin’s classification (1971), populations fall in class 1A, thus indicating occurrence of chromosome symmetry among the populations. In addition, a detailed account of karyomorphology and estimates of asymmetry indices showed that, all of the populations were symmetric, among which Khash and Kuhdasht populations were considered as the most asymmetrical and symmetrical karyotypes, respectively. Based on karyotypic parameters, the considered populations were categorized into two groups viz. Chabahar, Fanuj, and Khash populations which were previously reported as N. indicum in Flora Iranica, separated from Karaj and Kuhdasht populations.
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First karyotype analysis of Nerium oleander populations in Iran authors
فاطمه ابراهیمی
MSc Student of Horticultural Science, Department of Horticultural Science, Karaj Branch, Islamic Azad University, Karaj, Iran
مجید قربانی نهوجی
Assistance Prof., Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran
سیدمهدی میری
Associate Prof., Department of Horticultural Science, Karaj Branch, Islamic Azad University, Karaj, Iran
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