|Table of Contents|

Geographical Sources of Germplasm and Their Nuclear Contribution to Soybean Cultivars Released during 1983 to 2010 in Beijing(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2013年01期
Page:
1-11
Research Field:
Publishing date:

Info

Title:
Geographical Sources of Germplasm and Their Nuclear Contribution to Soybean Cultivars Released during 1983 to 2010 in Beijing
Author(s):
LIU Zhang-xiong1;  LI Wei-dong2;  SUN Shi1;  CHANG Ru-zhen1;  QIU Li-juan1
1.National Key Facility for Gene Resources and Genetic Improvement/Key Laboratory of Crop Germplasm Utilization,Ministry of Agriculture,Institute of Crop Sciences,Chinese Academy of Agricultural Science,Beijing 100081;
2.Institute of Industrial Crops Research,Henan Academy of Agricultural Sciences,Zhengzhou 450002,Henan,China
Keywords:
Soybean; Parents; Geographical resource; Genetic contribution
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2013.01.002
Abstract:
The characters of the cultivar evolution and parents selection can be illustrated for soybean breeding practice by tracing pedigree of cultivars.Based on the pedigree analyses of soybean cultivars released during 1980-2010 in Beijing,90 cultivars were traced back to 100 nuclear and 25 cytoplasmic ancestors and each cultivar had 1.11 nuclear ancestor.The domestic ancestors for nuclear contribution mainly came from Huanghuai valleys and foreign ancestor for nuclear contributaion mainly came from America.Twenty-one core original ancestors were selected based on the their nuclear contribution.It tends to be using modern cultivars as parents in recent breeding program compared to that in previous time.The genetic bases of modern cultivars from Beijing are comparatively abundant but utilization of new germplasm need to be strengthened to broaden the genetic base of cultivar in the future.

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Last Update: 2013-02-20