|Table of Contents|

Genetic Structure and Conservation of Soybean Landraces(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2008年03期
Page:
361-365
Research Field:
Publishing date:

Info

Title:
Genetic Structure and Conservation of Soybean Landraces
Author(s):
WANG Jun12WANG Lin-lin1LIU Zhang-xiong2GUAN Rong-xia2JIN Long-guo2LI Ying-hui2CHANG Ru-zhen2LUO Shu-ping1QIU Li-juan2
1Agronomy College of XinJiang Agricultural University,Urumqi 830052,Xinjiang;
2The National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI) / Key Laboratory of Germplasm & Biotechnology (MOA),Institute of Crop Sciences,Chinese Academy of Agricultural Sciences,Beijing 100081,China
Keywords:
SoybeanLandraceSSRPurity determinationGenetic integrityVariety preservation
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2008.03.0361
Abstract:
There are abundant soybean landraces in China,but few of them has been utilized in breeding program because of insufficient identification.In this study,two landraces of Yangyandou and Maodou were analyzed for their identity in order to provide instruction of purification and genetic integrity conservation of soybean landraces.The genome-wide SSR markers screening was used to analyze two landraces.Results showed(ⅰ) 44.8% of the 502 selected SSR markers showed polymorphism in Yangyandou and 167 of the 405 SSR markers showed polymorphism which accounted for 41.2% in Maodou;(ⅱ) The minimum numbers of SSR markers and individual seed to determine the purity of two landraces were 3 and 4 respectively;(ⅲ) Based on the cluster analysis,the two landraces could be segregated into 3 groups when the identity coefficient was at the level of 0.85.Results suggest that the purity of the two landrace are at low level.According to the genetic identity,one of the three groups could be utilized for one landrace and the others two groups could be separated as two different genetic integrity preservations for each of two landraces.

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Last Update: 2014-10-07