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Two distinctly different sperm storage organs in female Dysdera erythrina (Araneae: Dysderidae).
MedLine Citation:
PMID:  18088924     Owner:  NLM     Status:  PubMed-not-MEDLINE    
The haplogyne spider D. erythrina possesses two distinctly different sperm storage organs: a bilobed anterior spermatheca and a large, sac-like posterior diverticulum. The glandular equipment of both storage types is markedly different: the glandular tissue of the spermatheca is composed of complicated glandular units comprising a cuticular ductule and three canal cells (class 3 cells) whereas the glandular tissue of the posterior diverticulum is composed of simple gland cells that discharge their product through the cuticle (class 1 cells). Thus, the glandular products produced differ, leading to different storage conditions for the spermatozoa from copulation to egg laying. It is suggested that multiple organ types have evolved to facilitate specialization in short-term and long-term storage and to allow (posterior diverticulum) or prevent (spermatheca) males from accessing previously stored sperm.
G Uhl
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Arthropod structure & development     Volume:  29     ISSN:  1873-5495     ISO Abbreviation:  Arthropod Struct Dev     Publication Date:  2000 Apr 
Date Detail:
Created Date:  2007-12-19     Completed Date:  2008-04-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100972232     Medline TA:  Arthropod Struct Dev     Country:  England    
Other Details:
Languages:  eng     Pagination:  163-9     Citation Subset:  -    
Institute of Zoology, Department of Ethology, Kirschallee 1, 53115 Bonn, Germany.
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