生物技术进展 ›› 2013, Vol. 3 ›› Issue (4): 248-251.DOI: 10.3969/j.issn.2095-2341.2013.04.04

• 研究论文 • 上一篇    下一篇

利用多重PCR-SSR标记鉴别三系杂交棉种子混杂和SSR位点杂合

马维军,任爱民*,尹国,张玉娟,韩秋成,崔明晖   

  1. 邯郸市农业科学院, 河北 邯郸 056001
  • 收稿日期:2013-04-16 出版日期:2013-07-25 发布日期:2013-07-03
  • 通讯作者: 任爱民,研究员,硕士,从事棉花三系应用研究。E-mail:renaimin2008@163.com
  • 作者简介:马维军,研究员,硕士,从事棉花三系应用研究。
  • 基金资助:

    国家863计划项目(2011AA10A102);河北省重大技术创新项目(11227118Z);国家转基因生物新品种培育重大专项(2011ZX08005-001-002)资助。

Distinguishment of Seeds Impurity and SSR Loci Heterozygosis in The Three Line Hybrid Cotton Using Multiplex PCR-SSR Markers

MA Wei-jun, REN Ai-min, YIN Guo, ZHANG Yu-juan, HAN Qiu-cheng, CUI Ming-hui   

  1. Handan Academy of Agricultural Sciences, Hebei Handan 056001, China
  • Received:2013-04-16 Online:2013-07-25 Published:2013-07-03

摘要: 杂交种纯度优劣直接决定了杂交种产量,而常规方法鉴定周期长,不能及时反映杂交种纯度,难以指导生产应用。由于种子混杂和SSR位点杂合都会造成株间带型的差异,为提高杂交种纯度鉴定的准确性,本研究从196对SSR引物中筛选到4对在双亲间表现稳定多态性的引物,根据带型特点进行组合,结果显示,利用多重PCR-SSR技术可以区分棉花杂交种种子混杂和SSR位点杂合,为杂交种快速准确鉴定提供技术支持。

关键词: 棉花, 多重PCR-SSR, 种子纯度, SSR位点杂合

Abstract: Hybrid seed purity decides the hybrid yield. The conventional identification method lasts long time and can not display the seed purity promptly, so not to meet the production need. Since it is difficult to distinguish the bands pattern differences of hybid lines caused by mixed seeds and SSR loci heterozygous, in order to improve the accuracy of hybrid purity identification, 4 pairs of SSR primers showing stable polymorphism in the parents were selected from 196 pairs of primers, and combined according to the characteristic of PCR banding pattern, the results showed that the multiplex PCR-SSR technology could distinguish hybrid seed impurity and SSR loci heterozygous, so as to provide technical support for rapid and accurate seed purity identification of hybrids.

Key words: cotton, multiplex PCR-SSR, seed purity, SSR loci heterozygosis