Open AccessSpatial and temporal components of genetic variation in triploid parthenogenetic Trichoniscus pusillus (Isopoda: Crustacea)
Author(s) -
CHRISTENSEN BENT,
NOER HENNING
Publication year - 1986
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1986.tb00674.x
Subject(s) - biology , isopoda , parthenogenesis , habitat , ecology , crustacean , genetic variation , zoology , genetics , embryo , gene
Distribution of four genetically distinct clones in triploid parthenogenetic Trichoniscus pusillus was investigated at 48 stations representing four different habitat types. Eleven of these stations were investigated annually 1980‐84, and simultaneous fluctuations in clone frequencies at these stations imply that the observed variation is adaptive. In spite of overlap in clonal composition between some of the habitat types considered, significant differences exist in the distribution of clones with respect to such important ecological factors as type of soil and moisture regime. Based upon the available electrophoretic evidence, it is concluded that evolution has occurred in triploid T. pusillus, and this evolution is discussed in relation to the observed ecological variation between clones.