Tetrad analysis of mating type, mutations, esterase and aggressiveness in Phaeosphaeria nodorum
| Autor: | P. Halama, B. Dehorter, M. Skajennikoff |
|---|---|
| Přispěvatelé: | Station de pathologie végétale, Institut National de la Recherche Agronomique (INRA) |
| Rok vydání: | 1999 |
| Předmět: |
0106 biological sciences
Genetics 0303 health sciences Mating type biology [SDV]Life Sciences [q-bio] Strain (biology) Mutant Plant Science biology.organism_classification 01 natural sciences Esterase Phaeosphaeria nodorum 03 medical and health sciences POUVOIR PATHOGENE Genetic marker Ascospore Ascus ComputingMilieux_MISCELLANEOUS Ecology Evolution Behavior and Systematics 030304 developmental biology 010606 plant biology & botany Biotechnology |
| Zdroj: | Mycological Research Mycological Research, Elsevier, 1999, 103 (1), pp.43-49 |
| ISSN: | 0953-7562 1469-8102 |
| Popis: | Ascospore progenies from two crosses between a wild single-ascospore strain and two mutants of Phaeosphaeria nodorum were obtained in vitro. Cultural characters, sensitivity to carbendazim (MBC), nitrate utilization, mating type, esterase zymograms and aggressiveness of these progenies and parents were compared and differences were detected between the ascospores. The single-ascospore strains from each single ascus could always be grouped into four pairs using a combination of markers. Recombinations were observed between nitrate non-utilizing phenotype and mating type or esterase patterns for one cross. For the other cross, recombinations between MBC resistance and esterase patterns were detected. The values of aggressiveness in each progeny were distributed along a wide range confirming the polygenic character of aggressiveness in P. nodorum. No close relationship was observed between in vitro conidiogenesis, the intensity of leaf necrosis and the fertile pycnidia production on leaf lesions. |
| Databáze: | OpenAIRE |
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