Document Detail

Histological observation of some of the endocrine glands in the sterile carp-funa hybrid (F1), with special reference to the hypophysis.
MedLine Citation:
PMID:  539886     Owner:  NLM     Status:  MEDLINE    
Some endocrine glands of the carp-funa hybrids were studied with a light microscope to elucidate their detailed structure and the possible causal factor of sterility in the males. Adult specimens of carp (Cyprinus carpio), gengoroh-buna (Carassius auratus cuvieri), and their hybrid (F1) were examined. The hybrid males are sterile as manifested by the failure of meiosis and seminomatous neoplasm in their testes. The hybrid females revealed well-developed ovaries, but their fertility was not tested. The hybrid hypophysis shows an intermediate condition between the parent species in the grade of ramification of the pars nervosa into the pars intermedia. Among seven types of granular cells demonstrated in the adenohypophysis, certain degenerative and anomalous changes are recognized only in the gonadotrophs of the hybrid hypophysis, especially in the female. These changes are discussed as a possible cause of sterility. A considerable amount of aldehyde fuchsin stainable neurosecretory material occurs in the cells of the nucleus preopticus and in the pars nervosa. The nucleus lateralis tuberis exhibits a histologically healthy condition.
A Chiba; Y Honma; S Yoshie; Y Ojima
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Archivum histologicum Japonicum = Nihon soshikigaku kiroku     Volume:  42     ISSN:  0004-0681     ISO Abbreviation:  Arch Histol Jpn     Publication Date:  1979 Jul 
Date Detail:
Created Date:  1980-05-14     Completed Date:  1980-05-14     Revised Date:  2011-07-29    
Medline Journal Info:
Nlm Unique ID:  0146564     Medline TA:  Arch Histol Jpn     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  305-18     Citation Subset:  IM    
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MeSH Terms
Carps / anatomy & histology*
Cyprinidae / anatomy & histology*
Fish Diseases / pathology
Hybridization, Genetic*
Hypothalamus / anatomy & histology
Infertility, Male / pathology,  veterinary
Interrenal Gland / anatomy & histology
Neurosecretory Systems / anatomy & histology
Ovary / anatomy & histology
Pituitary Gland / anatomy & histology*
Testis / anatomy & histology
Thyroid Gland / anatomy & histology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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