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CHROMOSOME NUMBERS AND EVOLUTION IN PRIMITIVE ANGIOSPERMS
Author(s) -
Ehrendorfer F.,
Krendl F.,
Habeler E.,
Sauer W.
Publication year - 1968
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1217392
Subject(s) - biology , perianth , monophyly , botany , annonaceae , phylogenetic tree , chromosome number , lauraceae , reticulate , ploidy , evolutionary biology , chromosome , karyotype , genetics , clade , pollen , stamen , gene
Summary New chromosome counts on material of wild origin from the Magnoliales: Winteraceae, Himantandraceae, Annonaceae, Myristicaceae and from the Laurales: Austrobaileyaceae, Amborellaceae, Monimiaveae, Lauraceae, Hernandiaceae , and Chloranthaceae substantiate the assumption that primitive Angiosperms (woody Polycarpicae) are mostly ancient palaeo‐polyploids, ranging tot 24‐ploidy (table 1). Chromosomal data point to the parallel and reticulate evolutionary patterns of woody Polycarpicae (fig. 2) and give important hints for phylogenetic affinities and improved systematic arrangements on family and generic levels. Remarkable chromosomal similarities with Amentiferae strongly suggest a monophyletic origin of Angiosperms from progenitors with x = 7.