亚热带植物科学 ›› 2015, Vol. 44 ›› Issue (02): 127-129.DOI: 10.3969/j.issn.1009-7791.2015.02.008

• 植物资源与生态 • 上一篇    下一篇

硬枝黄蝉染色体计数与核型分析

郭蓉,申艳红   

  1. (福建农林大学 园艺学院,园艺植物遗传育种研究所,福建 福州 350002)
  • 收稿日期:2015-04-02 出版日期:2015-06-10 发布日期:2015-06-10
  • 通讯作者: 申艳红
  • 作者简介:郭蓉,本科,从事园艺学研究。
  • 基金资助:

    国家科技支撑计划子课题(No. 2007BAD07B03);福建农林大学本科教学改革项目(No. 111412103)

Chromosome Number and Karyotype of Allamanda neriifolia

GUO Rong,SHEN Yan-hong   

  1. (Institute of Genetics & Breeding in Horticultural Plants, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian China)
  • Received:2015-04-02 Online:2015-06-10 Published:2015-06-10
  • Contact: SHEN Yan-hong

摘要: 以硬枝黄蝉Allamanda neriifolia幼胚为试验材料,对其体细胞染色体进行计数与核型分析。结果表明,硬枝黄蝉幼胚细胞含9对染色体,由中部或近中部着丝粒染色体构成。核型公式为2n=2x=6sm+12m。核型不对称系数为58.95%,核型分类属于2A型。

关键词: 硬枝黄蝉, 染色体, 核型分析

Abstract: The chromosome number and karyotype of Allamanda neriifolia were studied using immature embryos as experimental materials. The results showed that the embryo cells normally contain 9 pairs of chromosomes, and all chromosomes were metacentric or submetacentric chromosomes. The karyotype formula was 2n=2x=6sm+12m. The karyotype was 2A type, and the asymmetry index was 58.95%.

Key words: Allamanda neriifolia, chromosome, karyotype

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