Premium
Genotypic succession in the cyclomorphosis of Bosmina longirostris (Cladocera)
Author(s) -
BROCK DAVID A.
Publication year - 1980
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.1980.tb01199.x
Subject(s) - esterase , biology , cladocera , bosmina , phenotypic plasticity , ecological succession , phenotype , zoology , ecology , crustacean , genetics , enzyme , gene , biochemistry
SUMMARY. The pattern of cyclomorphosis of Bosmina longirostris was followed over a 21‐month period in Lake Travis, Texas. Appreciable variation was observed in body size and in the lengths of antennules and mucrones. Electrophoresis of clonal isolates collected over the period of study showed a seasonal cycle in esterase phenotypes. A definite association was demonstrated between the esterase phenotypes and morphologies of these clonal isolates. Individuals of one esterase phenotype were usually large and long‐featured, whereas individuals of the other esterase phenotypes were smaller, with short features. The association of morphology and esterase phenotypes from laboratory experiments corresponded to the association observed in field samples. These results support the hypothesis that the cyclomorphosis of Lake Travis Bosmina involves a succession of clones as well as phenotypic plasticity.