Overview
TitleIdentification of Quantitative Trait Loci for Protein Content, Oil Content and Oil Quality for Groundnut (Arachis hypogaea L.)
AuthorsSarvamangala C, Gowda MVC, Varshney RK
TypeJournal
Media TitleField Crops Research
Volume122
Issue1
Year2011
Page(s)49-59
CitationSarvamangala C, Gowda MVC, Varshney RK. (2011). Identification of Quantitative Trait Loci for Protein Content, Oil Content and Oil Quality for Groundnut (Arachis hypogaea L.). Field Crops Research. 122:1 49-59

Abstract

Very few efforts have been made to improve the nutritional quality of groundnut, as biochemical estimation of quality traits is laborious and uneconomic; hence, it is difficult to improve them through traditional breeding alone. Identification of molecular markers for quality traits will have a great impact in molecular breeding. An attempt was made to identify microsatellite or simple sequence repeat (SSR) markers for important nutritional traits (protein content, oil content and oil quality in terms of oleic acid, linoleic acid and oleic/linoleic acid ratio) in a mapping population consisting of 146 recombinant inbreed lines (RILs) of a cross TG26 x GPBD4. Phenotyping data analysis for quality traits showed significant variation in the population and environment, genotype x environment interaction and high heritability was observed for all the traits. Negative correlation between protein content and oil content, oleic acid and linoleic acid indicated their antagonistic nature. After screening >1000 SSR markers, a partial genetic linkage map comprising of 45 SSR loci on 8 linkage groups with an average inter-marker distance of 14.62 cM was developed. QTL analysis based on single marker analysis (SMA) and composite interval mapping identified some candidate SSR markers associated with major QTLs as well as several minor QTLs for the nutritional traits. Validation of these major QTLs using a wider genetic background may provide the markers for molecular breeding for improving groundnut for nutritional traits.
Maps
This publication contains information about 1 maps:
Map Name
TT_TG26_x_GPBD4_b
Projects
This publication contains information about 3 projects:
Project NameDescription
Sarvamangala, Gowda et al., 2011a exp1Identification of Quantitative Trait Loci for Protein Content, Oil Content and Oil Quality for Groundnut (Arachis hypogaea L.)
Sarvamangala, Gowda et al., 2011a exp2Identification of Quantitative Trait Loci for Protein Content, Oil Content and Oil Quality for Groundnut (Arachis hypogaea L.)
Sarvamangala, Gowda et al., 2011a exp3Identification of Quantitative Trait Loci for Protein Content, Oil Content and Oil Quality for Groundnut (Arachis hypogaea L.)
Properties
Additional details for this publication include:
Property NameValue
Publication Speciesarahy
URLhttp://www.sciencedirect.com/science/article/pii/S0378429011000591
KeywordsGroundnut, Nutritional traits, Molecular markers, SSRs, QTLs, Molecular mapping
Cross References
This publication is also available in the following databases:
DatabaseAccession
DOI: Document Object IdentifierDOI:10.1016/j.fcr.2011.02.010
Stocks
This publication contains information about 1 stocks:
Stock NameUniquenaemType
TT_TG26_x_GPBD4_bTT_TG26_x_GPBD4_bCultivar