Premium
Variation in the chromosome number of Parnassia palustris L. in the British Isles
Author(s) -
GORNALL R. J.,
WENTWORTH J. E.
Publication year - 1993
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1993.tb03749.x
Subject(s) - biology , ploidy , chromosome number , chromosome , botany , glacial period , zoology , genetics , paleontology , karyotype , gene
SUMMARY The varieties of Parnassia palustris L. in the British Isles (var. palustris and var. condensata Travis & Wheldon) each have two cytodemes: a diploid (2 n = 18) and a tetraploid (2 n = 36). The distribution of the cytodemes is loosely correlated with the limits of the Devensian glaciation.