Análisis del cariotipo y detección de los genes 5s y 18s/25s RDNA en Chaetanthera microphylla (CASS.) Hook. Et ARN. (Asteraceae)

• Carlos M Baeza ^[1] ; Otto Schrader ^[2]
  1. [1] Universidad de Concepción

     Universidad de Concepción

     Comuna de Concepción, Chile

     
  2. [2] Institute of Horticultural Crops Federal Centre for Breeding Research on Cultivated Plants
• Localización: Gayana botánica, ISSN-e 0717-6643, ISSN 0016-5301, Vol. 62, Nº. 1, 2005, págs. 47-49
• Idioma: español
• Títulos paralelos:
  • Kayyotype analysis and detection of 5s and 18s/25s RDNA gene sequences in Chaetanthera microphylla (CASS.) Hook. Et ARN. (Asteraceae)
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• Resumen

  • Double fluorescence in situ hybridization was used to examine the karyotype of Chaetanthera microphylla (Cass.) Hook et Arn. from Chile, including the location of 5S and 18S/25S rDNA gene sequences. The species is 2n = 24, with 8m + 4st chromosomes. Signals of 5S and 18/25S rDNA were seen in two of the 12 chromosome pairs: n° 2 and 6