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GEOGRAPHY OF CLAYTONIA VIRGINICA CYTOTYPES
Author(s) -
Lewis Walter H.,
Semple John C.
Publication year - 1977
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.1537-2197.1977.tb10797.x
Subject(s) - biology , ploidy , genetic algorithm , meiosis , evolutionary biology , zoology , ecology , genetics , gene
Three widespread ploidy levels have evolved in Claytonia virginica , a diploid represented by n = 8, 7, and 6 races, a triploid primarily by n = 12 and 11, and a tetraploid by n = 16, 15, 14, and other aneutetraploids. In addition, sporadic higher polyploids (5 x –24 x ) occur throughout eastern North America. These data are considered briefly in relation to meiotic behavior, to coexistence of major cytotypes, and to speciation.