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Karyological studies of Isthmiophora melis (Schrank, 1788) from its type locality

Published online by Cambridge University Press:  05 June 2009

T. Mutafova ,
I. Kanev  and
U. Eizenhut
T. Mutafova
Affiliation:
Institute of Parasitology, Bulgarian Academy of Sciences, Block 25, 1113 Sofia, Bulgaria
I. Kanev
Affiliation:
Institute of Parasitology, Bulgarian Academy of Sciences, Block 25, 1113 Sofia, Bulgaria
U. Eizenhut
Affiliation:
Institute of Zoology, Erlangen, Germany
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Abstract

The karyotype of Isthmiophora melis (Trematoda:Echinostomatidae) is described. The chromosome number in the diploid cell is 2n = 20. The absolute (La) and relative (Lr) lengths of the chromosomes, as well as the centromere position (Ic), are determined. The differences in length between the adjacent chromosomes in the ordered series are not great, with the exception of chromosome 1 which occupies 20.58% of the genome length. This chromosome is metacentric, with lightly stained and elongated centromere region with Giemsa staining. Chromosome 7 is submetacentric. Chromosomes 2 to 6 are defined as telo-subtelocentric, while chromosomes 8 to 10 are subtelo-submetacentric. The fundamental number of arms in the I. melis karyotype is NF-22.

Keywords

Isthmiophora melischromosomesTrematodakaryotype
Type
Research Note
Information
Journal of Helminthology , Volume 65 , Issue 4 , December 1991 , pp. 255 - 258
Copyright
Copyright © Cambridge University Press 1991

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References

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