Premium
The history of the germ cells in the viviparous teleost platypoecilus maculatus
Author(s) -
Wolf Louis E.
Publication year - 1931
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.1050520106
Subject(s) - biology , somatic cell , coelom , mesoderm , germ , anatomy , germ line development , ontogeny , sex organ , zoology , sexual maturity , microbiology and biotechnology , ecology , genetics , gene , embryonic stem cell
This study is based upon a series of ontogenetic stages from just before coelom formation to maturity. Primordial germ ceils are first seen at the outer edge of the lateral mesoderm and are traced from there to a position in the genital analagen. Counts indicate that most of them succeed in reaching the genital anlagen, where they from definitive reproductive cells in both sexes. The evidence seems to show that there is some transformation of somatic cells into germ cells in the immature female, but that this transformation is not extensive. In the male the primordial germ cells are the sole source of the definitive elements.