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THE KARYOTYPES OF CALICOPHORON-MICROBOTHRIUM AND CARMYERIUS-GREGARIUS FROM EGYPTIAN RUMINANTS
Faculty
Science
Year:
1995
Type of Publication:
Article
Pages:
107-111
Authors:
ASHOUR, AA, HASSAN, NHA, IBRAHIM, AM, ELKABBANY, AI
Journal:
JOURNAL OF HELMINTHOLOGY LONDON SCH HYGIENE TROP MED
Volume:
69
Research Area:
Parasitology; Zoology
ISSN
ISI:A1995RM97300003
Keywords :
, KARYOTYPES , CALICOPHORON-MICROBOTHRIUM , CARMYERIUS-GREGARIUS FROM EGYPTIAN RUMINANTS
Abstract:
The karyotypes of the two amphistomes Calicophoron microbothrium Fischoeder, 1901 and Carmyerius gregarius (Looss, 1896), Stiles and Goldberger, 1910 from Egyptian ruminants were studied using the air drying technique. The two species have similar number of chromosomes (n = 9), but differ in chromosome morphology. All the chromosomes of C. microbothrium are subtelocentric, except the first and the fifth are metacentric, whereas the chromosomes of C. gregarius are submetacentric, subtelocentric and acrocentric. Some cells in the two species showed tetraploidy. The results are discussed in terms of the phylogenetic relationship of different amphistomes.
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