Pathogenic Variability in Isolates of Fusarium Oxysporum F. SP. Ciceris
Twenty isolates of Fusarium oxysporum f. sp. ciceris were isolated from wilted chickpea plants obtained from different districts of north part of Iraq to assess variability in pathogenecity of the populations. Each isolate was tested on 12 differential chickpea varieties . Isolates showed highly significant variation in wilt severity on the differential varieties . Based on the reaction types that induced on differential varieties, isolates were grouped into four groups, First group included isolates FocS1 , FocQ7 , FocQ10 , FocF13 , FocH17 and FocH18 The Second group included isolates FocS2 , FocS3 , FocS4 , FocQ5 , FocQ8 , FocQ9 , FocF11 , FocF12 , FocF14 and FocH19 The Third group included isolates FocF15 , FocH16 , FocH20 .Where the isolate FocQ6 was placed in the Fourth group .Results showed that the percentage of genetic similarity was ranged 42% to 100% and was 42% between the first group and other groups and 72% between the three groups the rest and thus this indicate the presence of four races of the fungus which are zero, 4, 5, and 1B / C this represent the first record of these races in Iraq.
Al-taae,A.K.M., Al_Taae,H.H and Murad,S.S.(2010). Study on Fusarium wilt of chichpea .Mesoptamia J.Agric. 38:5-13.
Cabrera De La Colina J, Trapero-Casas , A. and Jimenz-Diaz RM. (1985). Races of Fusarium oxysorum f.sp.ciceri in Andalusia, South Spain.InternationalChickpea Newsletter. 13:24–26.
Dolar, F.S. (1997). Determination of the races of Fusarium oxysorum f.sp.ciceri in Ankara Province, Turkey.Turkish Phytopathology. 26:11–15.
Haq, I., Jamil, F.F. (1995). Comparison of vascular discoloration and growth of Fusarium oxysporum in various segments of chickpea grown in ‘wilt sickplot’ in Faisalabad, Pakistan. International Chickpea and Pigeonpea Newsletter. 2:30–32.
Haware, M.P., Nene, Y.L. (1982). Races of Focs.Plant Disease. 66:809–810.
Honnareddy ,N. and Dubey, S.C. (2006). Pathogenic and molecular characterization of Indian isolates of Fusarium oxysporum f.sp. ciceris causing chickpea wilt. Curr. Sci., 91:661-666
Jimenez-Diaz ,R.M., Alcala-Jimenez, A.R., Hervas, A. and Trapero-Casas, J.L. (1993). Pathogenic variability and host resistance in the Focs /Cicer arietinum pathosystem. Proc. 3rd Eur. Semin.Fusarium mycotoxins, taxonomy, pathogenicity and host resistance. Radzikov (Poland): Plant Breeding and Acclimatization Institute. p. 87–94.
Jimenez-Gasco, M.M., Perez-Artes, E. and Jimenez-Diaz, R.M.(2001). Identiﬁcation of pathogenic races 0, 1B/C, 5, and6of Focwith random ampliﬁed polymorphic DNA (RAPD). European Journal of Plant Pathology. 107:237–248.
Jimenez-Fernandez, D., Montes-Borrego,M., Jimenez-Diaz,R.M. . Navas-Cortes, J.A.and Landa ,B.B. (2011). In planta and soil guantification of Fusarium oxysporum f.sp. ciceri and evaluation of Fusarium wilt resistance in chickpea with a newly developed quantiative poly merase chain reaction assay . Phytopathology, 101:250-262.
Jiménez-Gasco, M. M. and Jiménez-Díaz, R.M. ( 2003). Development of a specific polymerase chain reaction-based assay for the identification of Fusarium oxysporum f. sp. ciceris and its pathogenic races 0, 1A, 5, and 6. Phytopathology, 93:200-209.
Jimenez-Gasco, M. M.,Perez-Artes,E. and Jimenez-Diaz,R.M. ( 2001), Identification of pathogenic races 0, 1B/C, 5 and 6 of Fusarium oxysporum f. sp. ciceri with Random Amplified Polymorphic DNA (RAPD). Eur. J. Plant Pathol., 107, 237–248.
Jimenez-Gasco, M. M., Navas-Cortes,J.A. and Jimenez-Diaz,R.M. (2004).The Fusarium oxysporum f. sp. ciceris/ Cicer arietinum pathosystem: a case study of the evolution of plant-opathogenic fungi into races and pathotypes. Int. Microbiol., 7, 95–104.
Kelly, A., Alcala-Jimenez, A.R., Bainbridge, B.W., Heale, J.B.,Perez-Artes, E. and Jimenez-Diaz, R.M. (1994). Use of genetic ﬁnger printing and random ampliﬁed polymorphic DNA to characterize pathotypes of Foc infecting chickpea. Phytopathology. 84:1293–1298.
Landa, B.B.,Navas-Cortes ,J.A., Jimenez-Gasco,M.M.,Katan,J.,Retig,B. and Jimenez-Diaz,R.M. (2006). Temperature response of chickpea cultivars to races of Fusarium oxysporum f.sp. ciceris causal agent of Fusarium wilt . Plant Dis., 90:365-374.
Shehabu ,M., Ahmed,S. and Sakhuja,P.K. (2008).Pathogenic variability in Ethiopian isolates of Fusarium oxysporum f.sp. ciceris and reaction of chickpea improved varieties to the isolates. Int.J.PestManag., 54(2): 143-149.
Navas-Cortes, J.A., Hau,B.and Jimenez-Diaz, R.M. (1998).Eﬀectof sowing date, host cultivar, and race of Focon development of Fusarium wilt of chickpea. Phytopathology. 88:1338–1346.
Phillips, J.C. (1988). A distinct race of chickpea wiltin California. International Chickpea Newsletter.18:19–21.
Sharma, K. D.,Chen,W. and J.Muehlbauer,F. (2005). Genetics of chickpea resistance to five races of Fusarium wilt and a concise set of race differentials for Fusarium oxysporum f. sp. ciceris. Plant Dis., 89:385-390.
Trapero-Casas, A. and Jimenez-Diaz, R.M. (1985). Fungal wilt androot rot disease of chickpea in Southern Spain.Phytopathology. 75:1146–1151.
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