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Chromosome specimen from kidney cells were prepared by using colchicines-low concentration-air drying method and Howell’s (1980) Ag-NORs staining method.The karyotype,Ag-NORs of Anguilla australis was observed.The result showed that the chromosome number of A.australis was 2n=38.The karyotype of A.australis was 2n=16m+4sm + 18t,NF = 58.The Ag-NORs staining pots could be found on the tips of short arm of sm2.
LEVAN A D.Nomenclature for centromeric position on chromosomes[J].Hereditas,1964,52:201-220.
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HOWELL W M,BLACK D.Visualization of ribosomal gene activity:Silver stains proteins associated with rRNA transcrbed from oocyte chromosomes[J].Chromosomes,1977,62 (4):361-367.