南京林业大学学报(自然科学版) ›› 2012, Vol. 36 ›› Issue (03): 23-27.doi: 10.3969/j.jssn.1000-2006.2012.03.006

• 研究论文 • 上一篇    下一篇

百合远缘杂交及其杂种鉴别研究

张睿婧1,2,姜 珊2,席梦利2*,施季森2,黄寿先1*,吴祝华2   

  1. 1.广西大学林学院,广西 南宁 530004; 2.南京林业大学,林木遗传与生物技术省部 共建教育部重点实验室,江苏 南京 210037
  • 出版日期:2012-05-30 发布日期:2012-05-30
  • 基金资助:
    收稿日期:2011-10-28 修回日期:2012-03-01 基金项目:国家林业局“948”项目(2007-4-06); 国家自然科学基金项目(30972407) 第一作者:张睿婧,硕士生。*通信作者:席梦利,副教授。E-mail: ximenglinjfu@126.com。黄寿先,教授。E-mail:huangshouxian@163.com。 引文格式:张睿婧,姜珊,席梦利,等. 百合远缘杂交及其杂种鉴别研究[J]. 南京林业大学学报:自然科学版,2012,36(3):23-27.

Distant hybridization of Lilium var. Constanta’ × Lilium regale Wilson and the hybrids identification

ZHANG Ruijing1,2, JIANG Shan2, XI Mengli2*, SHI Jisen2,HUANG Shouxian1*, WU Zhuhua2   

  1. 1.College of Forestry, Guangxi University, Nanning 530004, China; 2.Key Laboratory of Forest Genetics and Biotechnology Ministry of Education, Nanjing Forestry University, Nanjing 210037, China
  • Online:2012-05-30 Published:2012-05-30

摘要: 百合种间远缘杂交的不亲和性和杂交后代鉴别,影响着百合杂交育种效率。以东方百合杂交品种‘康斯坦萨’(Lilium var. Constanta’)为母本,我国的特有野生百合岷江百合(Lilium regale Wilson)为父本,采用直接授粉法、切柱法、切柱加柱头液法3种方法在温室栽培条件下进行授粉实验; 子房发育至20 d以后,采集不同处理的子房经过表面灭菌处理,横切为0.3 cm的子房薄片,接种于MS+6-BA(0.01 mg/L)+NAA(0.1 mg/L)的培养基上进行胚拯救培养; 用SRAP分子标记对拯救获得的再生植株进行杂种鉴定。结果表明:3种不同授粉方法中,采用直接授粉法子房生长情况最好,切柱加柱头液法次之,切柱法最差。通过胚拯救培养获得一批杂种后代株系。分子检测结果显示,后代中7个株系均具有典型的父本及母本条带。因此可以认为,‘康斯坦萨’和岷江百合远缘杂交的障碍为受精后障碍,通过子房切片胚拯救培养获得的7个株系均为杂种。

Abstract: In this research,Lilium var. ‘Constanta’(oriental lily hybrid)was chosen as female parent, while the endemic wild lily in China. Lilium regale Wilson was regarded as the male parent. Direct stigma pollination, cut-style pollination, and cut-style pollination with smear stigma fluid were carried out for pollination. Ovaries with different pollination method were collected 20 d after pollination and sterilized, the ovaries were transversely cut into 0.3 cm slices, and were embryo rescue cultured on the MS medium supplemented with 0.01 mg/L 6-BA and 0.1 mg/L NAA. SPAP method was used to identify the strains after embryo rescue culture. The results showed that stigma pollination was the most appropriate pollination method. Through the sliced ovaries rescue culture, seven strains were obtained and all the strains exist typical two parents’ molecular band. In conclusions, the barriers would appear after fertilization in this distant hybridization between Lilium var. ‘Constanta’ and Lilium regale Wilson. And all the seven rescued strains are hybrids.

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