Open AccessEvidence for Endoreduplication: Germ Cell DNA Levels Prior to Chromatin Diminution in Mesocyclops edax
Author(s) -
Ellen M. Rasch,
Grace A. Wyngaard
Publication year - 2001
Publication title -
journal of histochemistry and cytochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.971
H-Index - 124
eISSN - 1551-5044
pISSN - 0022-1554
DOI - 10.1177/002215540104900615
Subject(s) - chromatin , biology , feulgen stain , somatic cell , dna , endoreduplication , microbiology and biotechnology , cell division , mitosis , anaphase , genetics , cell , cell cycle , gene
We studied the functional significance of marked differences in the DNA content of somatic cells and germ line nuclei by static Feulgen–DNA cytophotometry for several species of microcrustaceans that exhibit chromatin diminution during very early stages of embryogenesis. Mature females and males showed many gonadal nuclei with elevated amounts of DNA that persist until dispersal of this “extra” DNA throughout the cytoplasm as fragments and coalescing droplets of chromatin during anaphase of the diminution division.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom