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Stability Analysis of QTL Associated with Soybean Protein and Oil Content across Different Generations(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2015年01期
Page:
42-45
Research Field:
Publishing date:

Info

Title:
Stability Analysis of QTL Associated with Soybean Protein and Oil Content across Different Generations
Author(s):
LI Wen1;  SUN Ming-ming2;  ZHAO Dan3;  ZHANG Ji-yu1;  CAO Guang-lu1;  HAN Ying-peng1;  LI Wen-bin1;  TENG Wei-li1
1.Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology in Chinese Ministry of Education/ Key Laboratory of Soybean Biology and Breeding/Genetics of Chinese Agriculture Ministry, Harbin 150030, China; 2.Information Center, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; 3.School of Food Engineering, Harbin University of Commerce, Harbin 150076, China
Keywords:
Soybean;  Genetic population;  Protein content;  Oil content;  QTL;  Genetic stability
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2015.01.0042
Abstract:
?In this study, F2, F2∶3, F2∶4?and F2∶5?generation families were formed from a cross between high oil content cultivar Dongnong 46 and the high protein content line L-100. QTL analysis of protein, oil contents for genetic populations were carried via using SSR markers under different generations in different locations. Distribution of the protein and oil content in different generations nearly fitted normal distribution. The expression of the oil content trait in the populations trended to that of the parent Dongnong 46, and the expression of the protein content trait trended to that of the parent L-100. In F2∶4?generation, 2 QTLs of protein content were detected, located in MLG D2,K, and explained the phenotypic variation from 1.92% to 2.03%; especially the QTL in the vicinity of Satt226 in F2, F2∶3?and F2∶5?generations under different environmental conditions could be stably detected. In F2∶4generation, 2 QTLs of oil content were detected, located in MLG F, B2, and explained the phenotypic variation from 2.56% to 6.98%; especially the QTL in the vicinity of Satt577 in F2∶3?and F2∶5?generations under different environmental conditions could be stably detected. This study obtained a stable QTL associated with protein content and oil content, separately.

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Last Update: 2015-04-12