Karyotype of an avian schistosome Trichobilharzia szidati (Digenea: Schistosomatidae).
Somatic chromosomes of Trichobilharzia szidati Neuhaus, 1952 are described from larval stages dissected from snails, air-dried on slides and stained with Giemsa and C-banding technique, used for the first time in Trichobilharzia sp. The karyotype consisted of 7 autosomal pairs and 1 pair of sex chromosomes, ZZ in the male and ZW in the female, where Z and W chromosomes are of different sizes and both are classified as submetacentric. C-banding aided in identification of chromosomes Nos 4, satellited 6 and 8. No heterochromatin was observed in the W chromosome. The results were not in agreement with those previously reported and represent new findings. The possible explanation for this fact is given.
Parasitological Institute of the Slovak Academy of Sciences, Kosice, Slovak Republic. spakulmalinuxl.saske.sk
M
M
Spakulova
P
P
Horák
I
I
Král'ová
D000818:Animals; D002871:Chromosome Banding; D002875:Chromosomes / Q000737:chemistry; D005260:Female; D006570:Heterochromatin; D007621:Karyotyping; D008297:Male; D012551:Schistosomatidae / Q000235:genetics*; D012730:Sex Chromosomes
D006570:Heterochromatin