Open AccessRestricted gene flow and subpopulation differentiation in Silene dioica
Author(s) -
GILES BARBARA E.,
LUNDQVIST ELISABETH,
GOUDET JEROME
Publication year - 1998
Publication title -
heredity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.441
H-Index - 118
eISSN - 1365-2540
pISSN - 0018-067X
DOI - 10.1046/j.1365-2540.1998.00348.x
Subject(s) - biology , archipelago , gene flow , silene , gynodioecy , caryophyllaceae , pollen , population , perennial plant , ecology , botany , evolutionary biology , dioecy , gene , genetics , genetic variation , demography , sociology
The size of breeding units and the hierarchical population structure of the dioecious perennial herb Silene dioica were investigated on four closely situated island populations in the Skeppsvik Archipelago in northern Sweden. F ‐statistics analyses of nine polymorphic allozyme loci revealed that plants on single islands are divided into many small breeding units, between 0.2 m 2 and 6 m 2 . Hierarchical analyses showed that levels of differentiation among subpopulations within islands ( F PL =0.080) were about twice as high as among islands ( F LT =0.048). These results are discussed in the light of what is known about pollen and seed movement in the archipelago.