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NUMERICAL TAXONOMY APPLIED TO CUCURBITA RELATIONSHIPS
Author(s) -
Bemis W. P.,
Rhodes A. M.,
Whitaker Thomas W.,
Carmer S. G.
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.tb09830.x
Subject(s) - interspecific competition , biology , cucurbita , hybrid , interspecific hybrids , domestication , interspecific hybridization , numerical taxonomy , taxonomy (biology) , botany , zoology , ecology , evolutionary biology
In a numerical study of taxonomic relationships in Cucurbita , the inclusion of F 1 interspecific hybrids did not materially alter the species grouping in the phenogram. The F 1 interspecific hybrids tend to cluster with one of the parent species or species groups unless the parents are widely divergent. Also, the F 1 interspecific hybrids between wild and domesticated species cluster with the wild parent Both parent species or species groups of an F 1 interspecific hybrid can usually be determined from Q‐correlation values. It is essential that compatibility relations be determined between species; i.e., species groups must be established before Q‐correlation values can be successfully used in determining the parentage of hybrids. Undescribed collections can usually be correctly placed in the proper species group.