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THE SIGNIFICANCE OF HYBRIDIZATION FOR PLANT TAXONOMY AND EVOLUTION
Author(s) -
Stebbins G. Ledyard
Publication year - 1969
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1218589
Subject(s) - reticulate evolution , reticulate , evolutionary biology , biology , taxonomy (biology) , phylogenetics , plant evolution , zoology , genome , genetics , paleontology , gene
Summary The pattern of evolutionary phylogeny has been highly reticulate mainly on account of hybridization (crossing between individuals belonging to populations which have different adaptive norms) followed by stabilization and perpetuation of some of the hybrid derivatives. The significance of hybridization in obtaining a picture of evolutionary relationships is discussed. First the evolutionary advantages that might result from hybridization are considered, second the drawbacks; finally the ways and degrees to which such drawbacks may be overcome are discussed.