KARYOTYPE ANALYSIS AND NEW CHROMOSOME NUMBERS OF SOME SPECIES OF EUPHORBIA L. (EUPHORBIACEAE) IN IRAN

Document Type : Research Paper

Authors

1 Department of Plant Science, School of Biology, College of Science, University of Tehran

2 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.

3 Department of Plant Science, School of Biology, College of Science, University of Tehran.

Abstract

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.

Keywords


Article Title [Persian]

مطالعه کاریوتیپی و گزارش عدد کروموزومی جدید در برخی گونه‌های سرده فرفیون، تیره Euphorbiaceae در ایران

Authors [Persian]

  • جرن فصیحی 1
  • شاهین زارع 2
  • نسیم اذانی 3
  • یاسمن سلمکی 2
1 فارغ‌التحصیل کارشناسی ارشد گروه علوم گیاهی، دانشکده زیست‌شناسی، دانشگاه تهران، تهران، ایران
2 استاد قطب تبارزایی موجودات زنده ایران، گروه علوم گیاهی، دانشکده زیست‌شناسی، پردیس علوم، دانشگاه تهران،
3 دانشجوی دکتری سیستماتیک گیاهی، گروه علوم گیاهی، دانشکده زیست‌شناسی، دانشگاه تهران، تهران، ایران
Abstract [Persian]

عدد کروموزومی و کاریوتایپ 15 گونه از سرده فرفیون از بخشه­های مختلف موجود در ایران مورد بررسی قرار گرفت. عدد کروموزومی چهار گونه شامل، E. polycaulis (2n=18)، (2n=18)  E. inderiensis، E. phymatosperma (2n=16) و E. gypsicola (2n=54) برای اولین بار گزارش می­شود. همچنین نتایج مطالعه حاضر برای 11 گونه­ دیگر مورد مطالعه، تایید کننده پژوهش­های پیشین بود. وجود دو تیپ هسته­ای دیپلویید وتتراپلویید برای گونه E. microsciadia تایید می­شود. کاریوتایپ­ها متقارن بوده و اغلب شامل کروموزوم­های متاسنتریک و ساب­متا سنتریک هستند. همچنین نتایج ما تایید کننده وجود اعداد کروموزومی پایه متفاوت شامل  x = 7, 8, 9, 10 برای این سرده است که بر اهمیت تکاملی چنین داده­هایی دلالت دارد.


Keywords [Persian]

  • Cytotypes
  • Euphorbia
  • flora of Iran
  • karyology
  • Taxonomy
  • Evolution
Beest, Te M., J.J., Richardson, D.M., Anne K. Brysting, A.K., Suda, J., Kubešová M., & Pyšek, P. 2012: The more the better? The role of polyploidy in facilitating plant invasions. – Ann. Bot. 109: 10-45.
Benedi, C., & Blanche, C. 1992: IOPB chromosome data 4. – International Organization of Plant Biosystematics Newsletter, 18/19: 6.
Chariat-Panahi, M.S., Lessani, H. & Cartier, D. 1982: Étude caryologique de quelques especes de la flore de Iran. – Rev. Cytol. Veg. Biot. 5: 189-196.
Dalgaard, V. 1985: Chromosome studies in flowering plants from Madeira. – Willdenowia 15: 137–156.
Franzen, R. & Gustavsson, L.A. 1983: In chromosome numbers in flowering plants from the high mountains of Sterea Ellas, Greece. – Willdenowia 13: 101-106.
Ghaffari, S.M. 1986: IOPB Chromosome number reports XCI. –Taxon 35: 407.
Ghaffari, S.M. 2006: New or rare chromosome counts of some angiosperm species from Iran. – Iran. J. Bot. 11(2): 185-192.
Ghaffari, S.M. 2008: Chromosome reports for some plant species from Iran. – Iran. J. Bot. 14: 39-46.
Govaerts, R., Frodin, D.G. & Radcliffe-Smith, A. 2000: World checklist and bibliography of Euphorbiaceae (and Pandaceae) – The Royal Botanical Garden, Kew.
Hans, A.S. 1973: Chromosomal conspectus of the Euphorbiaceae. – Taxon 22: 591–636.
Hayirlioğlu-Ayaz, S., Inceer, H., Beyazoğlu, O. 2002: Cytotaxonomic studies on some Euphorbia L. (Euphorbiaceae) species in Turkey. – Pak. J. Bot. 34(1): 494-500.
Horn, J.W., van Ee, B.W., Morawetz, J.J., Riina, R., Steinmann, V.W., Berry, P.E. & Wurdack, K.J. 2012: Phylogenetics and the evolution of major structural characters in the giant genus Euphorbia L. (Euphorbiaceae). – Mol. Phylogenet. Evol. 63: 305-326.
Khatoon, S. & Ali, S.I. 1993: Chromosome Atlas of the Angiosperms of Pakistan. – Department of Botany, University of Karachi, Karachi.
Lessani, H. & Chariat-Panahi, A. 1979: In IOPB chromosome number reports LXV. – Taxon 28: 635-636.
Levan, A. Fredga, K., & Sandberg, A.A. 1964: Nomenclature for centromeric position on chromosomes. – Hereditas 52: 201-220.
Urbatsch, L.E., Bacon, J.D., Hartman, R.L., Johnston, M.C., Watson, T.J., Webster, J.R., & Webster, G.L. 1975: Chromosome numbers for North American Euphorbiaceae. – Amer. J. Bot. 62(5): 494-500.
Nasseh, Y. 2013: Chromosome numbers of some Iranian species of the genus Euphorbia (Euphorbiaceae). – Takhtajania 2: 127-128
Mehra, P.N. & Choda, S.P. 1978: Cyto-taxonomical studies in the genus Euphorbia L. – Cytologia 43: 217-235.
Pahlevani, A.H., Maroofi, H. & Joharchi, M.R. 2011: Notes on six endemic or rare species of Euphorbia subg. Esula (Euphorbiaceae) in Iran. – Willdenowia 41: 267-276. 
Pahlevani, A.H., Liede-Schumann, S. & Akhani, H. 2015: Seed and capsule morphology of Iranian perennial species of Euphorbia (Euphorbiaceae) and its phylogenetic application. – Bot. J. Linn. Soc. 177: 335-377.
Parisod, C., Holderegger, R. & Brochmann, C. 2010: Evolutionary consequences of autopolyploidy. – New Phytol. 186: 5-17.
Pavone, P., Terrasi, C.M. & Zizza, A. 1981. In chromosome number reports LXXII. – Taxon 30: 695–696.
Perry, B.A. 1943: Chromosome number and phylogenetic relationships in the Euphorbiaceae. – Am. J. Bot. 30: 527-543.
Radcliffe-Smith, A. 2001. Genera Euphorbiacearum. – Royal Botanical Gardens, Kew. Rafinesque, C.S., 1837. Flora Telluriana 2. Rafinesque (self-published), Royal Botanical Gardens, Kew, UK.
Reeves, A. & Tear, J. 2000: Micro-measure software, Colorado State University.
Riina, R., Peirson, J.A., Geltman, D.V., Molero, J., Frajman, B., Pahlevani, A., Barres, L., Morawetz, J.J., Salmaki, Y., Zarre, S., Kryukov, A., Bruyns, P.V. & Berry, P.E. 2013: A worldwide molecular phylogeny and classification of the leafy spurges, Euphorbia subgenus Esula (Euphorbiaceae). – Taxon 62: 316– 342.
Romero Zarco, C. 1986: A new method for estimating karyotype asymmetry. – Taxon. 35(3): 526-530.
Salmaki, Y., Zarre, S., Esser, H.J. & Heubl, G. 2011: Seed and gland morphology in Euphorbia (Euphorbiaceae) with focus on their systematic and phylogenetic importance, a case study in Iranian highlands. – Flora 206: 957-973.
Schlaepfer, D.R. 2008: Ecological significance of ploidy level of native and invasive populations of Solidago gigantean. – Doctoral Thesis, ETH Zurich.
Sharma, A. 1990: Taxonomy as related to genetic diversity in plants. – J. Indian Bot. Soc. 69: 1-3.
Sheidai, M., Ghazi, M. & Pakravan, M. 2010: Contribution to cytology of the genus Euphorbia in Iran. – Cytologia 75 (4): 477-482.
Simon, J. & Vicens, J. 1999: E studis biosystemàtics en Euphorbia L., a la Mediterrània Occidental. – Institut d’ Estudis Catalans. Arx. Secc. Ci. 122:704 pp. Barcelona.
Stebbins, G.L. 1971: Chromosomal evolution in higher plants. – Edward Arnold Press.
Steinmann, V.W. & Porter, J.M. 2002: Phylogenetic relationships in Euphorbieae (Euphorbiaceae) based on its and ndhF sequence data. – Ann. Missouri Bot. Gard. 89: 453-490
Strid, A. & Franzen, R. 1981: In chromosome number reports LXXIII. – Taxon 30: 829–842.
Vicens, J., Molero, J. & Blanché C. 1991: Mediterranean chromosome number reports 1 (38–44). – Flora Medit. 1: 241–243.
Vignal, C. & Reynaud, C. 1992: Mediterranean chromosome number reports 2 (118-119). – Flora Medit. 2: 272-273.
Vogt, R. & Oberprieler, C. 1994: Chromosome numbers of North African phanerogams. IV. – Candollea 49: 549–570.
Webster, G.L. 1994: Synopsis of the genera and subgeneric taxa of Euphorbiaceae. – Ann. Missouri Bot. Gard. 81: 33-144.
Yang, Y., Riina, R., Morawetz, J.J., Haevermans, T., Aubriot, X. & Berry, P.E. 2012: Molecular phylogenetics and classification of Euphorbia subgenus Chamaesyce (Euphorbiaceae). – Taxon 61: 764–789.
Zehzad, B. 1978: Chromosome numbers for Euphorbia species from Iran. – Rev. Biol. Ecol. Mediterraneenne 1: 35-40.