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.
Spakulova
M
M
Parasitological Institute of the Slovak Academy of Sciences, Kosice, Slovak Republic. spakulmalinuxl.saske.sk
Horák
P
P
Král'ová
I
I
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