18S rDNA and ß-tubulin diversity in Rhizoctonia zeae voorhees. | [Pakistan Journal of Botany • 2016]

Author(s):

1. Cem Tolga Gürkanli: Ordu University, Fatsa Faculty of Marine Sciences, Department of Fisheries Technology Engineering, Fatsa, Ordu, Turkey

2. Emine Banu Aydin: Ondokuz Mayis University, Faculty of Arts and Science, Department of Biology, Atakum, Samsun, Turkey

3. Erkol Demirci: Karadeniz Technical University, Maçka Vocational School, Trabzon, Turkey

4. Ismail Erper: Ondokuz Mayis University, Faculty of Agriculture, Department of Plant Protection, Atakum, Samsun, Turkey

5. Gürsel Karaca: Suleyman Demirel University, Faculty of Agriculture, Department of Plant Protection, Isparta, Turkey

6. Ting-Fang Hsieh: Floriculture Research Center, Taiwan Agricultural Research Institute, Yunlin, Taiwan

7. Luiz Sebastiao Poltronieri: Marco - BELÉM-PA-BRAZIL CX Postal 48 CEP 66095-100, Brasil

8. Ibrahim Özkoç: Ondokuz Mayis University, Faculty of Arts and Science, Department of Biology, Atakum, Samsun, Turkey

Abstract:

Waitea circinata Warcup & Talbot, which is related to the anamorphic form-genus Rhizoctonia D.C., is a world wide distributed soil-borne fungal pathogen. Several molecular based studies have been published based on rDNA-ITS sequences to determine the phylogenetic relations between and within the different Rhizoctonia groups. It is generally accepted that phylogenies depending on a single gene may be misleading. In this study, we phylogenetically analysed three varieties of Waitea circinata (var. circinata, var. zeae and var. oryzae) using the nucleotide sequences of two commonly used markers 18S rDNA and β-tubulin for identification. Our phylogenetic analysis clearly supported the distinction of the three varieties. In W. circinata var. zeae, we determined a total of three lineages, two of which are distributed worldwide and one is unique for Americas. We observed both of the global lineages in Turkey and due to their dispersion, the invasion of these two lineages to Turkey probably occurred in different periods of times. Additionally, our results in this study once again suggested the Americas as the origin for W. circinata var. zeae.

Page(s): 645-651

DOI: DOI not available

Published: Journal: Pakistan Journal of Botany, Volume: 48, Issue: 2, Year: 2016

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