Transgressive Segregation for Oleate Content in Three Soybean Populations

Abstract

FA22 and N98-4445A do not have the deletion of Fad2-1 present in M23 (Alt et al., 2005). Increased oleate content of soybean [Glycine max (L.) Merr.] oilThe objective of this study was to determine if the may be useful for food and industrial applications requiring increased alleles conditioning mid-oleate in FA22, N98-4445A, oxidative stability. The objective of this study was to determine if and M23 were sufficiently different to result in transtransgressive segregates for oleate content could be found in crosses between three mid-oleate lines: FA22 from Iowa State University, gressive segregation for the trait. If transgressive segre-N98-4445A from the USDA-ARS/North Carolina State University, gates were found, they could be useful for elevating the and M23 from Saga University, Japan. Single-cross populations of oleate content of soybean in a cultivar development FA22 ϫ M23, FA22 ϫ N98-4445A, and N98-4445A ϫ M23 were deprogram.

Association of candidate genes for fatty acid content in soybean by temperature-switch PCR (TSP) genotyping

“…The range of variation for oleic acid in this population was 12.81% to 46.38%, an indication of transgressive segregation. Other authors identified transgressive segregation in populations derived from FA22 (Alt et al 2005). The existence of transgressive segregants indicates the possibility of genetic complementation by fixing alleles of different loci in order to increase the oleic acid content.…”

“…The A29 genotype (1% linolenic acid) was obtained by hybridization and selection from mutant strains for low content of linolenic acid (Ross et al 2000). The FA22 line was selected for higher levels of oleic acid (~ 50%) (Alt et al 2005). CD219RR and Tucunaré (cultivars adapted to conditions in central Brazil) have linolenic acid and oleic acid concentrations of 8% and 19%, respectively.…”

Soybean Oil: Genetic Approaches for Modification of Functionality and Total Content

“…Soybean genotypes with mid-oleic acid phenotypes, 30% to 70%, have been developed through conventional breeding by exploiting the variation found in the soybean germplasm (Takagi and Rahman, 1996;Rahman et al, 2001;Alt et al, 2005b). However, commercial planting of mid-oleic acid germplasm has never materialized, primarily due to yield drag associated with the trait (Bachlava et al, 2008a;Scherder and Fehr, 2008).…”

Effect of Soybean Oil Fatty Acid Composition and Selenium Application on Biodiesel Properties

“…2 Relationship between polyunsaturated FAME content (wt%) and IP (R 2 0.722) Fig. 3 Relationship between saturated FAME content (wt%) and CP (R 2 0.9197) and PP (R 2 0.9511) [28]. However, the genetic modification involved the use of the bla gene for ampicillin resistance as a selectable marker.…”