Cytotypes and Multiple NORs in an Astyanax altiparanae population(Pisces, Tetragonopterinae)
スポンサーリンク
概要
- 論文の詳細を見る
Fourteen Astyanax altiparanae specimens were analyzed cytogenetically. The diploid number was equal to 50 chromosomes but different karyotype formulae were evidenced presenting three cytotypes : cytotype 1 with 10M+26SM+4ST+10A (NF=90), cytotype 2 with 10M+24SM+4ST+12A (NF=88) and cytotype 3 with 10M+22SM+4ST+14A (NF=86). Multiple AgNORs were detected in the telomeric regions of the short or long arm of different chromosomes, showing a variation of 1 to 4 nucleolar chromosomes. One SM chromosome with marking in the two telomeres was observed. Treatment with chromomycin A_3 (CMA_3) showed regions rich in GC in different chromosomes, probably coinciding with the AgNORs.
- 財団法人染色体学会の論文
著者
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DIAS Ana
Universidade Estadual de Londrina, CCB, Depto. de Histologia
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Dias Ana
Universidade Estadual De Londrina
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GIULIANO-CAETANO Lucia
Universidade Estadual de Londrina, CCB, Depto. de Biologia Geral
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Giuliano-caetano Lucia
Universidade Estadual De Londrina Ccb Depto De Biologia Geral
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Pacheco Rosiley
Universidade Estadual De Londrina Ccb Depto De Biologia Geral
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