| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
a Dep. of Crop and Soil Sciences, 3111 Miller Plant Sciences Building, Univ. of Georgia, Athens, GA 30602
b USDA-ARS and North Carolina State Univ., Raleigh, NC 27607
c USDA-ARS, National Center for Agricultural Utilization Research, Peoria, IL 61604
* Corresponding author (rboerma{at}arches.uga.edu)
Palmitic acid is one of the two major saturated fatty acids of soybean [Glycine max (L.) Merr.] oil that is closely related to nutritional quality of soybean oil. Reduction of palmitic acid content would lower the total saturated fatty acid content of soybean oil and improve the oil quality for human consumption. Several mutant lines with reduced palmitic acid content have been developed in which the genes conditioning palmitic acid content are located at different loci. The objective of this research was to map the genes conferring reduced palmitic acid from N87-2122-4 on the public soybean genetic linkage map with simple sequence repeat (SSR) markers. Four near-isogenic lines with normal and reduced palmitic acid content and the F2 and F2:3 generations of a population derived from the cross of ‘Cook’ x N87-2122-4 were used to perform the SSR mapping of the genes conditioning reduced palmitic acid. The results indicated that a major gene with an allele for reduced palmitic acid contributed by N87-2122-4 is located near the top of Linkage Group (LG) A1. A SSR marker, Satt684 in that region accounted for 38% of variation in palmitic acid content in the F2 generation and 31% of variation in the F2:3 generation. On LG-M, Satt175 accounted for 8% of the variation in the F2 and 9% of the variation in the F2:3 generation. This minor gene on LG-M had a significant interaction with the gene on LG-A1 in the F2 generation. When combined in a multiple regression equation, these markers explained 51% of total phenotypic variation for palmitic acid content in the F2 and 43% of the variation in the F2:3 generations.
Abbreviations: GLM, general linear model • LG, Linkage group • QTL, quantitative trait loci • RFLPs, restriction fragment length polymorphisms • SSRs, simple sequence repeats.
This article has been cited by other articles:
|
|
 |
|
  M. J. Monteros, J. W. Burton, and H. R. Boerma Molecular Mapping and Confirmation of QTLs Associated with Oleic Acid Content in N00-3350 Soybean Crop Sci., November 24, 2008; 48(6): 2223 - 2234. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. J. Cardinal, R. E. Dewey, and J. W. Burton Estimating the Individual Effects of the Reduced Palmitic Acid fapnc and fap1 Alleles on Agronomic Traits in Two Soybean Populations Crop Sci., March 19, 2008; 48(2): 633 - 639. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. J. Cardinal and J. W. Burton Correlations between Palmitate Content and Agronomic Traits in Soybean Populations Segregating for the fap1, fapnc, and fan Alleles Crop Sci., September 1, 2007; 47(5): 1804 - 1812. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. J. Cardinal, J. W. Burton, A. M. Camacho-Roger, J. H. Yang, R. F. Wilson, and R. E. Dewey Molecular Analysis of Soybean Lines with Low Palmitic Acid Content in the Seed Oil Crop Sci., February 6, 2007; 47(1): 304 - 310. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Zhu, D. R. Walker, H. R. Boerma, J. N. All, and W. A. Parrott Fine Mapping of a Major Insect Resistance QTL in Soybean and its Interaction with Minor Resistance QTLs Crop Sci., March 27, 2006; 46(3): 1094 - 1099. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Vadose Zone Journal | |||
| Journal of Natural Resources and Life Sciences Education |
Soil Science Society of America Journal | ||||
| Journal of Plant Registrations | Journal of Environmental Quality |
The Plant Genome | |||
