Meiosis in Aspergillus nidulans: another example for lacking synaptonemal complexes in the absence of crossover interference

Immature cleistothecia of A. nidulans were serial sectioned and studied by electron microscopy. Synaptonemal complexes or other conspicuous signs of chromosomal pairing were not observed in this material. This deviation from most other eukaryotes may be of significance for explaining the likewise un...

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Bibliographic Details
Published in:Hereditas 1982-01, Vol.97 (2), p.179-187
Main Authors: Egel-Mitani, M, Olson, L.W, Egel, R. (Copenhagen Univ. (Denmark). Genetisk Inst.)
Format: Article
Language:English
Subjects:
ASPERGILLUS
Aspergillus nidulans
Aspergillus nidulans - genetics
Aspergillus nidulans - ultrastructure
CELL DIVISION
Cell Nucleus - ultrastructure
CHAMPIGNON
Crossing Over, Genetic
DIVISION CELLULAIRE
DIVISION CELULAR
FISIOLOGIA
FONCTION PHYSIOLOGIQUE
FUNCION FISIOLOGICA
FUNGI
MANIFESTATION MALADIES DES PLANTES
MEIOSE
MEIOSIS
Microscopy, Electron
MOHO
MOISISSURE
MOULDS
PHYSIOLOGICAL FUNCTIONS
PHYSIOLOGIE
PHYSIOLOGY
PLANT DISEASE MANIFESTATIONS
PLANTAS
PLANTE
PLANTS
SINTOMAS
SINTOMAS DE ENFERMEDADES (PLANTAS)
Species Specificity
SYMPTOME
SYMPTOMS
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Description
Summary:Immature cleistothecia of A. nidulans were serial sectioned and studied by electron microscopy. Synaptonemal complexes or other conspicuous signs of chromosomal pairing were not observed in this material. This deviation from most other eukaryotes may be of significance for explaining the likewise unusual absence of crossover interference in this organism, as well as in Schizosaccharomyces pombe . In addition, the authors report on division spindles and spore formation in A. nidulans .
ISSN:0018-0661
1601-5223
DOI:10.1111/j.1601-5223.1982.tb00761.x