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Genetic variability and virulence among Verticillium albo-atrum isolates from hop


, : Genetic variability and virulence among Verticillium albo-atrum isolates from hop. European journal of plant pathology 116(4): 301-314

Verticillium wilt, caused by Verticillium albo-atrum or V. dahliae, is an important disease of many worldwide crop species. In Europe, V. albo-atrum isolates infecting hop express different levels of virulence, inducing mild or lethal disease syndromes, and it is therefore an attractive model for studying the virulence of this pathogen. In this work, eleven amplified fragment length polymorphism (AFLP) primer combinations were used to analyze genetic variability among 55 V. albo-atrum hop isolates from four European hop growing regions, as well as isolates from other hosts and V. dahliae isolates. Cluster analysis divided V. albo-atrum and V. dahliae isolates into two well-separated groups. Within the V. dahliae cluster, isolates were separated without host specific grouping, although no host adapted isolates were included. In V. albo-atrum, the alfalfa isolates were distinct from isolates of other hosts, where a high association with virulence was observed in hop and tomato isolates. All lethal hop isolates were genetically different from mild hop isolates. The lethal hop isolates from England and Slovenia expressed the same virulence phenotype, although they showed a different AFLP pattern. The mild hop isolates formed two subgroups, to which isolates clustered irrespective of geographical location. These data suggest multiple origins of V. albo-atrum hop isolates, and the possible appearance of new virulent isolates in the future in other hop growing regions.

US$19.90

DOI: 10.1007/s10658-006-9061-0


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Taketomi, S.; Nakagawa, T.; Takeda, H.; Nakajima, K.; Nakayama, S.; Fukai, A.; Hirota, J.; Kachi, Y.; Kawano, H.; Miura, T.; Fukui, N.; Nakamura, K., 2011: Anatomical placement of double femoral tunnels in anterior cruciate ligament reconstruction: anteromedial tunnel first or posterolateral tunnel first?. The purpose of this study was to know which tunnel--the anteromedial (AM) bundle or the posterolateral (PL) bundle--should be prepared first to create the 2 femoral tunnels accurately in anatomic double-bundle (DB) anterior cruciate ligament (ACL)...

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Schmitz, G.; Jabs, H.U.; Assmann, G., 1983: Densitometry of phosphatidylcholine and sphingomyelin in high-density lipoproteins. The estimation of phosphatidylcholine and sphingomyelin in plasma, serum and high-density lipoproteins is described.

Duggleby, S.L.; Jackson, A.A.; Godfrey, K.M.; Robinson, Sân.M.; Inskip, H.M., 2008: Cut-off points for anthropometric indices of adiposity: differential classification in a large population of young women. Anthropometric indices of adiposity include BMI, waist circumference and waist:height ratio. In the recruitment phase of a prospective cohort study carried out between 1998 and 2002 we studied a population sample of 11 786 white Caucasian non-preg...

Baagoe, H.; Roer, H., 1991: Proceedings fifth European Bat Research Symposium Nyborg Strand, Denmark August 20th - 25th 1990. Myotis, 29: 5-160

Claus, R.; Karg, H., 1976: Boar taint. New physiological data and their significance. In this review, consideration is given to the origin of boar taint and the effects of oestrogen treatment and castration on it.

Fang, P.; Zhao, Z.; Tian, H.; Zhang, X., 2012: RIN1 exhibits oncogenic property to suppress apoptosis and its aberrant accumulation associates with poor prognosis in melanoma. Malignant melanoma is an increasing disease in China, and its molecular mechanisms of development and progression are limited. The objective of this study was to investigate the expression of Ras interaction/interference 1 (RIN1) protein and its c...

Ranganadham, P.; Dinakar, I., 1989: Blood-fluid level in intracerebral hematoma in an infant. Ajr. American Journal of Roentgenology 152(4): 896-897

Fellmann, N., 1996: Fluid compartments and very long-term tests. Archives of Physiology & Biochemistry 104(4): D91-D93

Roonwal, ML.; Verma, SC., 1974: Broad-postmentum latigula-group species of termite genus Odonototermes Termitidae from the Orient with a new lndian species. Journal lndian Acad Wood Sci, 42: 88-91