alexa Karyotype of Acanthocephalus lucii: the first record of supernumerary chromosomes in thorny-headed worms.
Veterinary Sciences

Veterinary Sciences

Journal of Veterinary Science & Technology

Author(s): Spakulov M, KrlovHromadov I, Dudink V, Reddy PV

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Abstract The karyotype of Acanthocephalus lucii(Müller, 1776), a parasite of perch, consists of six autosomal biarmed chromosomes and two subtelocentric sex X chromosomes in females or one X in males. The sex determining mechanism is of the XX-X0 type. Most of the acanthocephalans (85\%) exhibit small supernumerary metacentric B chromosomes, the number of which varies from one to five. Our data represent the first record of B chromosomes in thorny-headed worms. A possible relationship between the occurrence of B chromosomes and a heavy metal accumulation in acanthocephalan tissue from contaminated aquatic environments is briefly discussed. This article was published in Parasitol Res and referenced in Journal of Veterinary Science & Technology

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