Pollen morphology of some Geranium subgenus Robertium species of Iran

  • Maryam Keshavarzi Plant Science Dept., Faculty of Biological Science, Alzahra University
  • M. Behzadifar Plant Science Dept., Faculty of Biological Science, Alzahra University
  • Z. Nazem Bokaee Plant Science Dept., Faculty of Biological Science, Alzahra University

Abstract

Geranium (Geraniaceae) comprises more than 23 annual or perennial species in Iran. There is no study in Iran with pollen morphology emphasize. The main aim of this study is to find diagnostic pollen characters in studied species. Totally 40 accessions of five species (G. albanum, G. molle, G. purpureum, G. mascatense and G. pusillum) were collected. Pollen grains were studied by use of light and scanning electron microscopy. To reveal the species relationships different multivariate statistical methods were used. The pollen grains were monad, isopolar, radially symmetric and of spheroid, prolate-spheroid or oblate-spheroid classes. The main ornamentation type was clavate, however reticulate but striate was also observed. All sections are clearly separated by their pollen features except of Batrachioidea which show confusion with Ruberta. Species relationship is discussed.

References

Aedo C., Garmendia F.M., Pando F. 1998. World checklist of Geranium L. Anales Jard. Bot. Madrid 56 (2): 1–42.
Bortenschlager S. 1967. Vorläufige Mitteilungen zur Pollenmorphologie in der Familie der Geraniaceen, und ihre systematische Bedeutung. Grana Palynol. 7: 400–468.
Deniz I., Çirpici A., Yildiz K. 2013. Palynological study of the Geranium (Geraniaceae) species from the Thrace region (Turkey-in-Europe). Phytologia Balcanica 19 (3): 347–355.
Hesse M., Halbritter H., Zetter R., Weber M. Buchner R., Frosch-Radivo A., Ulrich S. 2009. Pollen terminology. An illustrated handbook. Springer, Wein, New York.
Ingrouille M.J. 1986. The construction of cluster webs in numerical taxonomic investigation. Taxon 35: 541–545.
Park S.J., Kim Y.S. 1997. A palynotaxonomic study of Asian Geranium L. Kor. J. Plant Tax. 27 (3): 295–315.
Perveen A., Gaiser M. 1999. Pollen flora of Pakistan. XV. Geraniaceae. Turk. J. Bot. 23: 263–269.
Schonbeck-Temesy E. 1970. Geraniaceae. In: Rechinger K.H. (ed.), Flora Iranica 69: 30–58.
Shehata A.A. 2008. Pollen morphology of Egyptian Geraniaceae: An assessment of taxonomic value. Int. J. Bot. 4 (1): 67–76.
Stafford P.J., Blackmore S. 1991. The Northwest European pollen flora, 46. Geraniaceae. Rev. Palaeobot. Palyno. 69: 49–78.
Verhoeven R.L., Venter H.J.T. 1986. Pollen morphology of Erodium in South Africa. S. Afr. J. Bot. 53 (4): 279–283.
Yeo P.F. 1984. Fruit discharge type in Geranium (Geraniaceae): its use in classification and its evolutionary implications. Bot. J. Linn. Soc. 89: 1–36.
Fig. 4. Cluster analysis (Ward’s method) based on pollen features of Geranium.
Published
2016-06-01
How to Cite
KESHAVARZI, Maryam; BEHZADIFAR, M.; NAZEM BOKAEE, Z.. Pollen morphology of some Geranium subgenus Robertium species of Iran. Modern Phytomorphology, [S.l.], v. 10, p. 39-45, june 2016. ISSN 2227-9555. Available at: <http://ojs.phytomorphology.org/index.php/MP/article/view/12>. Date accessed: 11 apr. 2018. doi: https://doi.org/10.5281/zenodo.155359.
Section
Research Articles