IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Print this page

The aboral ring and the development of early gonads in the echinoid Paracentrotus lividus (Echinodermata, Echinoidea)
Gosselin, P.; Spirlet, C.; Jangoux, M. (2003). The aboral ring and the development of early gonads in the echinoid Paracentrotus lividus (Echinodermata, Echinoidea). Invertebr. Biol. 122(3): 271-279
In: Invertebrate biology. Blackwell Publishing: Lawrence, Kan.. ISSN 1077-8306; e-ISSN 1744-7410, more
Peer reviewed article  

Available in  Authors 
    VLIZ: Open Repository 230830 [ OMA ]

Author keywords
    germ cells

Authors  Top 

Abstract
    The development of the genital apparatus is described for the echinoid Paracentrotus lividus. This apparatus derives from the aboral ring, an annular structure that includes an inconspicuous coelom and, in juveniles, the germinal rachis. The germinal epithelium grows out from the germinal rachis, and the gonadal wall and coelom in early (tubular) gonads share similarities with their equivalents in the aboral ring. The original germinal rachis regresses to form a genital cord one cell wide in late juveniles. A genital cord was observed in a few field-collected adult individuals (>40 mm test diameter).

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors