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Inheritance of Elevated Palmitate in Soybean Seed Oil
Author(s) -
Narvel James M.,
Fehr Walter R.,
Ininda Jane,
Welke Grace A.,
Hammond Earl G.,
Duvick Daniel N.,
Cianzio Silvia R.
Publication year - 2000
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci2000.403635x
Subject(s) - biology , ethyl methanesulfonate , allele , cultivar , genotype , soybean oil , mutant , genetic analysis , horticulture , food science , genetics , gene
Elevated palmitate in soybean [ Glycine max (L.) Merr.] seed oil may be useful for some food and industrial products. Four mutant alleles, fap2 , fap2‐b , fap4 , and fap5 , each elevate palmitate to ≈170 g kg −1 compared with ≈110 g kg −1 for common soybean cultivars. A new mutant line, A25, with a palmitate content of ≈170 g kg −1 was developed by treatment of seeds of ‘Kenwood’ with ethyl methanesulfonate. The objective of our study was to determine the genetic control of elevated palmitate in A25. A25 was crossed reciprocally to lines possessing fap1 , fap2 , fap2‐b , fap3 , fap4 , or fap5 The analysis of reciprocal F 1 and parent seeds from the crosses indicated no maternal effect or dominance for palmitate content. The phenotypic analysis of F 2 seeds and the genotypic analysis of F 2 plants indicated that elevated palmitate in A25 was controlled by an allele, designated fap6 , at a single locus that was independent of fap1 , fap2 , fap3 , fap4 , and fap5 The combination of fap2‐b , fap4 , and fap6 resulted in a genotype with seeds that contained up to 398 g kg −1 palmitate.