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SYNAPTONEMAL COMPLEXES AND MEIOSIS IN MYXOMYCETES
Author(s) -
Aldrich Henry C.,
Mims Charles W.
Publication year - 1970
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1970.tb09893.x
Subject(s) - biology , meiosis , spore , prophase , homothallism , physarum polycephalum , synaptonemal complex , botany , bivalent (engine) , meiosis ii , genetics , gene , chemistry , mating type , organic chemistry , metal
Synaptonemal complexes (SC) have been observed in spores 18–24 hr past cleavage in natural fruitings of Physarum cinereum, P. bogoriense, Hemitrichia stipitata, Tubifera ferruginosa , and Arcyria incarnata . Laboratory fruitings of Arcyria cinerea, Stemonitis herbatica , and a homothallic isolate of Physarum pusillum also have SC's present in spores during the same postcleavage period. The presence of these paired chromosomes of meiotic prophase in spores of species collected in nature and in a diversity of taxa suggests that the usual position of meiosis in Myxomycetes is inside the postcleavage spore. Criteria are proposed for evaluating the validity of the SC as an indicator of meiosis.