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Babesia bovis: genome size, number of chromosomes and telomeric probe hybridisation
S H Jones1, A E Lew, W K Jorgensen
1Department of Parasitology, University of Queensland, Brisbane, Australia.
International Journal for Parasitology
|February 19, 1998
Abstract:
Pulsed field gel electrophoresis of intact chromosomes of Babesia bovis revealed four chromosomes in the haploid genome. A telomere probe, derived from Plasmodium berghei, hybridised to eight SfiI restriction fragments of genomic B. bovis DNA digests indicating the presence of four chromosomes. A small subunit (18S) ribosomal RNA gene probe hybridised to the third chromosome only. The genome size of B. bovis is estimated to be 9.4 million base pairs. The sizes of chromosomes 1, 2, 3 and 4 are estimated to be 1.4, 2.0, 2.8 and 3.2 million base pairs, respectively.