Biotechnology Bulletin ›› 2013, Vol. 0 ›› Issue (2): 72-75.

• Research report • Previous Articles     Next Articles

Karyotype Analysis of Four Herbaceous Flowers

Qi Yuqing1 Li Xinling1 Zhang Yanni2 Li Feng1   

  1. （1. College of Life Sciences and Technology，Harbin Normal University，Harbin 150025 ；2 . College of Landscape Architecture，Northeast Forestry University，Harbin 150040）
  • Received:2012-08-17 Revised:2013-02-27 Online:2013-02-26 Published:2013-02-27
  • Contact: 李新玲，女，副教授，研究方向：植物遗传育种；E-mail ：lixinling2002@126.com

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Abstract: In this paper, conven-tional pressed slice method was used to study chromosome number and karyotype of four herbaceous flowers. The results showed that Diranthus chinensis：chromosome number 2n=14, karyotype formula K（2n）=14=12 m+2 sm, belonging to “1A” type; Lavatera trimestris Linn ：chromosome number 2n=14, karyotype formula K（2n）=14=6 m+8 sm, belonging to “2A” type; Capsicum frutescans ：chromosome number 2n=24, karyotype formula K（2n）=24=24 m, belonging to “1B” type; Impatiens balsamina ：chromosome number 2n=14, karyotype formula K（2n）=2x=14=10 m+4 sm, belonging to “1B” type. This is the first report of karyotype of these four flowers, and may help breeding and classification of flowers.

Key words: Diranthus chinensis, Lavatera trimestris Linn., Capsicum frutescans, Impatiens balsamina, Chromosome, Karyotype