QTL Mapping of Quality Traits in Soybean with Advanced Backcross Introgression Population
Author:
Affiliation:

Institute of Crop Science, Chinese Academy of Agricultural Sciences / Key Laboratory of Soybean Biology (Beijing), Ministry of Agriculture

Clc Number:

Fund Project:

Major National Special Project of GMO New Varieties Breeding (2016ZX08004-004),National Key R & D Project (2017YFD0101400), Science and Technology Innovation Project of Chinese Academy of Agricultural Sciences

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    QTL mapping of soybean quality traits can provide a theoretical basis for molecular hybridization breeding. In this study, 113 genetic pairs of SSR primers with polymorphism were used to construct a genetic linkage map with a total length of 1630.95 cM and an average genetic distance of 14.43 cM, covering 19 soybean linkage groups (except B2) of 142 lines of advanced backcross introgression population BC2F7 derived from soybean ‘Zhonghuang 13’ (recurrent parent) × ‘Dongshan 69’ (donor parent). Near-infrared spectroscopy (NIR) and gas chromatography (GC) were used to determine the contents of protein, fat and five major fatty acids in soybean. A total of 33 QTLs were identified using ICIM-ADD in two years. The number of mapped QTL were 5, 2, 6, 11, 4, 3, and 3 for protein (PR), fat (OIL), stearic acid (SA), palmitic acid (PA), linoleic acid (LA), oleic acid (OA), and linolenic acid (LNA), respectively. Sat_003 - Sat_147 were negatively correlated with OA in the two years. Satt523 - Sat_405 were correlated with PA and PR. Staga001 -Satt658 and Satt263 - Satt651 were correlated with OA and SA. Satt228 - att525 were correlated with LA and PR. Satt658 - Satt433 were correlated with LNA and SA. The mapping results have clarified the correlation of quality traits to a certain extent, and have reference significance for the selection of excellent varieties in soybean molecular breeding.

    Reference
    Related
    Cited by
Get Citation
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:January 02,2020
  • Revised:April 10,2020
  • Adopted:May 06,2020
  • Online: September 09,2020
  • Published:
You are the th visitor 京ICP备09069690号-23
® 2024 All Rights Reserved
Supported by:Beijing E-Tiller Technology Development Co., Ltd.