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A Comparative Analysis of Protein and Fat Content between Wild and Cultivated Soybeans in China(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2009年04期
Page:
747-750
Research Field:
Publishing date:

Info

Title:
A Comparative Analysis of Protein and Fat Content between Wild and Cultivated Soybeans in China
Author(s):
LIUShun-hu1; 3; ZHOURui-bao2; GAIJun-yi1
1Soybean Research Institute of Nanjing Agricultural University；National Center for Soybean Improvement；and National Key Laboratory for Crop Genetics and Germplasm Enhancement，Nanjing 210095，Jiangsu；
2Soybean Processing Research Institute，Henan University of Technology，Zhengzhou 450012，Henan；
3Jining College，Qufu 273155，Shandong，China
Keywords:
Wild soybean(Glycine soja Sieb.et Zucc.); Cultivated soybean(Glycine max(L.)Merr.); Protein content; Fat content; Genetic variability; Eco-region
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2009.03.0747
Abstract:
It is a basic work to explore the genetic variability and selection potential of protein and fat content existed in soybean germplasm for the improvement of the two components.In the present study，total 768 accessions，including 138 wild entries (Glycine soja Sieb.et Zucc.)，408 cultivated landraces (Glycine max(L.) Merr.)and 145 released domestic cultivars sampled from various eco-regions as a representative in China，along with 77 released foreign cultivars，were tested for their protein and fat content by using Kjeltec and Soxtec technique in order to characterize the genetic variability of protein and fat content in respective kinds of germplasm.The data obtained were analyzed with the software of SAS 9.0 and SPSS 13.0.The results obtaind under the environmental conditions in Nanjing showed that the range of protein content，fat content and total of both in wild soybean were 39.2-54.2%，7.5-17.5%，47.3-64.6%，those in cultivated landraces 38.8-51.5%，11.5-22.5%，55.6-69.0%，those in released domestic cultivars 41.7-49.4%，12.9-22.9%，55.6-68.6%，respectively.The increase of fat content and protein plus fat content after domestication and the decrease of protein content as well as its range implied that the improvement of fat content happened during the artificial improvement process.There existed large amount of genetic variation of protein content，fat content and total of both contents in various eco-regions in different kinds of materials，with elite accessions in each eco-regions，but the variation was not large enough among ec-region means.No significant correlation between the three contents and the original latitude of the materials was found in wild accessions，while significant positive correlation between fat content and latitude existed in cultivated landraces and released cultivars and significant negative correlation between protein content and latitude was found only in released cultivars.There was no significant correlation between protein content and fat content in wild soybeans，but significant negative correlation between the two contents found in cultivated land races and released cultivars.The reason for this kind of change should be the differential artificial selection among the eco-regions.

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Last Update: 2014-09-21