Investigation of chromosome number of several plant species native to Iran

Document Type : Research Paper

Authors

1 Assistant Prof, Botany research Division, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), P.O. Box 13185-116, Tehran, I.R. of Iran.

2 Prof, Botany research Division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran.

Abstract

Research on chromosomes helps to clarify the relationship between taxa. Chromosome number is the simplest parameter that generates valuable information in cytotaxonomic and genome studies of a species. In the plant genome, genetic information includes plant phenotypes, which is why cellular studies are so important.Chromosome number is one of the most important and helpful factors in examining the boundaries of species and genera in plants. In this study, the somatic chromosomal number of 7 species of native plants of Iran was investigated. In this study, Achillea vermicularis (2n=36), Codonocephalum peacockianum (2n=20), Cousinia multiloba (2n=26), Nepeta heliotropifola (2n=36), Pteropyrum aucheri (2n=22), Rumex elbursensis (2n=30), Reaumuria oxiana (2n=22) was reported. Chromosome numbers of Nepeta heliotropofila, Pteropyrum aucheri, Rumex elbursensis, Reaumuria oxiana were reported for the first time. The Chromosome numbers of mitosis of Codonocephalum peacockianum and Cousinia multiloba were reported for the first time. The purpose of this research is to complete the index chromosome of native plants of Iran. Analyses were performed by Micromeasure 3.3 and Excel softwares.

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Volume 35, Issue 1
April 2022
Pages 22-30
  • Receive Date: 14 July 2021
  • Revise Date: 01 September 2021
  • Accept Date: 29 September 2021
  • First Publish Date: 20 October 2021