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Karyotype variation of Fritillaria graeca and F. davisii from Greece
Author(s) -
Zaharof Eugenia
Publication year - 1989
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/j.1756-1051.1989.tb01013.x
Subject(s) - parapatric speciation , biology , subspecies , botany , zoology , population , karyotype , phylogenetic tree , genetic variation , genetics , chromosome , gene flow , demography , sociology , gene
The karyotypes of two Greek endemic species of Fritillaria, F graeca and F. davisii were examined in 29 population samples, using conventional staining techniques. Specific marker chromosomes which predominate in particular geographical areas serve to distinguish 5 major cytotypes within F. graeca. These cytotypes absolutely coincide with the morphologically previously determined subspecies: graeca, guicciardii, ionica, thessala and its var. othria. Cytological findings together with morphology and geographical distribution of the species agree in suggesting a close phylogenetic relationship between the parapatric species F. graeca and F. davisii.