中国农业科学 ›› 2013, Vol. 46 ›› Issue (23): 4985-4995.doi: 10.3864/j.issn.0578-1752.2013.23.015

• 园艺 • 上一篇    下一篇

基于AFLP分子标记的核桃核心种质的构建

 王红霞1, 赵书岗2, 高仪3, 玄立春4, 张志华1   

  1. 1.河北农业大学山区研究所/河北省山区农业工程技术研究中心,河北保定 071001
    2.河北农业大学生命科学学院,河北保定 071001
    3.河北农业大学园艺学院,河北保定 071001
    4.迁安市林业局,河北迁安 064400
  • 收稿日期:2013-05-28 出版日期:2013-12-01 发布日期:2013-08-20
  • 通讯作者: 张志华,Tel:0312-7526346;E-mail:zzh@hebau.edu.cn
  • 作者简介:王红霞,Tel:0312-7526344;E-mail:whx@hebau.edu.cn
  • 基金资助:

    国家“十二五”科技支撑计划(2013BAD14B0103)

A Construction of the Core-Collection of Juglans regia L. Based on AFLP Molecular Markers

 WANG  Hong-Xia-1, ZHAO  Shu-Gang-2, GAO  Yi-3, XUAN  Li-Chun-4, ZHANG  Zhi-Hua-1   

  1. 1.Mountainous Areas Research Institute, Agricultural University of Hebei/Research Center for Agricultural Engineering Technology of Mountain District, Baoding 071001, Hebei
    2.College of Life Science, Agricultural University of Hebei, Baoding 071001, Hebei
    3.College of Horticulture, Agricultural University of Hebei, Baoding 071001, Hebei
    4.Forestry Bureau of Qian’an, Qian’an 064400, Hebei
  • Received:2013-05-28 Online:2013-12-01 Published:2013-08-20

摘要: 【目的】构建核桃核心种质以便更好地保存、评价和利用丰富的核桃种质资源。【方法】利用AFLP分子标记,对131份核桃原始种质采用逐步聚类法建立候选核心种质,比较不同候选核心种质的多态性位点数、多态性位点百分率,结合形态学指标及地理来源,最终确定核桃核心种质,并进行评价。【结果】建立的核桃核心种质保留了原始种质10%的样品,分别为河北的天桥1号、陕西的西洛2号和西林1号、山西的晋龙1号、山东的丰辉、辽宁的辽宁8号和辽73013、新疆的温185、河南的绿波、北京的北京746、美国引进品种维纳、日本引进品种清香和朝鲜的品种安边1号。根据遗传多样性评价结果,与原始种质相比,核心种质的多态性位点保留率为75.4%。【结论】构建的核桃核心种质能较大程度地代表原始种质的遗传信息,符合核心种质要求。

关键词: 核桃 , 核心种质 , AFLP , 遗传多样性

Abstract: 【Objective】 Walnut is an important economic tree species in China, and its germplasm resources are very rich. There were many problems in the processing of germplasm preservation such as large area occupied, higher management costs, which brought great difficulties to the conservation, utilization and evaluation. Therefore, construction of walnut core collection is very important for preservation, study and application of Juglans regia L. germplasm resources.【Method】 Based on AFLP markers, candidate core collections were constructed by using proportional strategy and UPGMA clustering sampling method within subgroups after dividing 131 Juglans regia germplasm into 45 subgroups. The core collection was eventually identified by comparison of the genetic diversity parameters of these candidate core collections, such as the number of polymorphic loci, percentage of polymorphic loci, and morphological indicators. 【Result】The core collections including Tianqiao1 from Hebei province, Xiluo2 and Xilin1 from Shaanxi province, Jinglong1 from Shanxi province, Fenghui from Shandong province, Liaoning8 and Liao73013 from Liaoning province, Wen185 from Xinjiang, Lvbo from Henan province, Beijing746 from Beijing, Vina from America, Qingxiang from Japan, Anbian1 from North Korea, reserved 10% samples of original collection. The retention rate of polymorphic loci was 75.4% in the core collection.【Conclusion】The core collection which was constructed in this study can largely represent the genetic information of the original germplasm, and it was matched with the requirements of the core collection.

Key words: Juglans regia L. , core collection , amplified fragment length polymorphism (AFLP) , genetic diversity