Results 121 to 130 of about 1,696 (170)

Chromosome Size Polymorphism inLeptosphaeria maculans

Phytopathology, 1993
Chromosome size polymorphism among nine isolates of Leptosphaeria maculans was studied by hybridization of homologous and heterologous DNA fragments to chromosomes separated by contour-clamped homogeneous electric field (CHEF) electrophoresis. Four of the fungal isolates were highly virulent and three were weakly virulent in Brassica plants; the ...
Morales, Victor M., Séguin-Swartz, Ginette, Taylor, Janet L.   +2 more
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Organisation of ribosomal DNA in the ascomycete Leptosphaeria maculans

Microbiological Research, 1997
In the ascomycete Leptosphaeria maculans tandem repeats of ribosomal DNA (rDNA) are restricted to one or two particular chromosomes of the 15 chromosomes of 19 field isolates examined. Ribosomal DNA can account for size differences of 35% between homologous chromosomes in a particular tetrad.
B J, Howlett, B D, Rolls, A J, Cozijnsen
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The Leptosphaeria maculans – Leptosphaeria biglobosa species complex in the American continent

Plant Pathology, 2009
Stem canker of oilseed rape (canola, Brassica napus ) is associated with a species complex of two closely related fungal species, Leptosphaeria maculans and L. biglobosa . Of these, L. maculans
Dilmaghani, A., Balesdent, M., Didier, J., Wu, C., Davey, J., Barbetti, M., Li, Hua, Moreno-Rico, O., Phillips, D., Despeghel, J., Vincenot, L., Gout, L., Rouxel, T.   +12 more
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Leptosphaeria maculans, the Causal Agent of Blackleg Disease of Brassicas

Fungal Genetics and Biology, 2001
The loculoascomycete Leptosphaeria maculans (anamorph: Phoma lingam) causes blackleg of Brassicas, including Brassica napus (canola or rapeseed). This fungus probably comprises several morphologically similar species; taxonomic relationships between them are being clarified and nomenclature is being revised.
B J, Howlett, A, Idnurm, M S, Pedras
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Inheritance of chromosomal length polymorphisms in the ascomycete Leptosphaeria maculans

Molecular and General Genetics MGG, 1995
Pulsed field gel electrophoresis experiments show that chromosomal length polymorphisms are produced during meiosis in the ascomycetous plant pathogen Leptosphaeria maculans. Homologues in tetrads of L. maculans were identified on the basis of their binding to chromosome-specific probes that included beta-tubulin, nitrate reductase, 18S ribosomal DNA ...
K M, Plummer, B J, Howlett
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Meiotic behaviour of the minichromosome in the phytopathogenic ascomycete Leptosphaeria maculans

Current Genetics, 1996
All Leptosphaeria maculans field isolates displayed a minichromosome (MC) clearly separated from the overall electrokaryotype following pulsed-field gel electrophoresis. MCs exhibited a length polymorphism ranging from 650 to 950 kb. Tetrad analyses revealed the parental inheritance of MC length polymorphism (50% of the tetrads) or else the generation ...
Leclair, S., Ansan-Melayah, D., Rouxel, Thierry, Balesdent, Marie-Helene   +3 more
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Genetic linkage maps and genomic organization in Leptosphaeria maculans

European Journal of Plant Pathology, 2006
Leptosphaeria maculans is a haploid outcrossing ascomycete with a genome size of about 34 Megabases (Mb) which is predicted to have between 10,000 and 12,000 genes. The chromosomes of L. maculans are of a size range (0.7–3.5 Mb) and number (15–16) that can be readily resolved by pulsed field gel electrophoresis.
Marie-Line Kuhn, Lilian Gout, Barbara J. Howlett, Delphine Melayah, Michel Meyer, Marie-Hélène Balesdent, Thierry Rouxel   +6 more
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GENETIC ANALYSIS OF THE BLACKLEG FUNGUS LEPTOSPHAERIA MACULANS

Acta Horticulturae, 2000
A genetic and physical map has been developed for Leptosphaeria maculans, which causes blackleg of oilseed Brassicas. The genetic map was constructed from 58 F1 progeny and comprises 154 Amplified Fragment Length Polymorphic (AFLP) markers, 3 Random Amplified Polymorphic DNA (RAPD) markers, a gene encoding a retinal-binding protein, the mating type ...
B.J. Howlett, A.J. Cozijnsen, K. Popa, A. Idnurm, A.C. Sexton, A. Purwantara   +5 more
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Leptosphaeria maculans the ascogenous state of Phoma lingam

Transactions of the British Mycological Society, 1964
Observations in 1956–1957 showed that Leptosphaeria maculans (Desm.) Ges. & de Not. was the ascogenous state of Phoma lingarn (Tode ex Fr.) Desm. in New Zealand and South Australia. This fungus is responsible for dry-rot and black leg disease of brassicas.
H.C. Smith, B.C. Sutton
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Biology ofLeptosphaeria maculans

Canadian Journal of Plant Pathology, 1992
(1992). Biology of Leptosphaeria maculans. Canadian Journal of Plant Pathology: Vol. 14, No. 1, pp. 30-35.
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