Overview
TitleInheritance of Seed Condensed Tannins and their Relationship with Seed-Coat Color and Pattern Genes in Common Bean (Phaseolus vulgaris L.)
AuthorsCaldas GV, Blair MW
TypeJournal
Media Title0
Volume119
Issue1
Year2009
Page(s)131-142
CitationCaldas and Blair, 2009a

Abstract

Condensed tannins are major flavonoid end products that affect the nutritional quality of many legume seeds. They chelate minerals and interact with proteins, thus reducing their bioavailability. Tannins also contribute to seed coat color and pigment distribution or intensity. The objective of this study was to analyze the relationship between quantitative trait loci (QTL) for seed tannin concentration in common bean and Mendelian genes for seed coat color and pattern. Three populations of recombinant inbred lines, derived from crosses between the Andean and Mesoamerican genepools were used for QTL identification and for mapping STS markers associated with seed color loci. Seed coat condensed tannins were determined with a butanol-HCl method and a total of 12 QTL were identified on separate linkage groups (LGs) in each of the populations with individual QTL explaining from 10 to 64% of the phenotypic variation for this trait. Loci on linkage groups B3 and B10 were associated with the Mendelian genes Z and Bip for partly colored seed coat pattern, while a QTL on linkage group B7 was associated with the P gene which is the primary locus for the control of color expression in beans. In conclusion, this study found that the inheritance of tannin concentration fits an oligogenic model and identifies novel putative alleles at seed coat color and pattern genes that control tannin accumulation. The results will be important for the genetic improvement of nutritionally enhanced or biofortified beans that have health promoting effects from higher polyphenolics or better iron bioavailability.
Maps
This publication contains information about 2 maps:
Map Name
DOR364_x_G19833_b
BAT93_x_JALOEEP558_a
Projects
This publication contains information about 3 projects:
Project NameDescription
Caldas and Blair, 2009a exp1Inheritance of seed condensed tannins and their relationship with seed-coat color and pattern genes in common bean (Phaseolus vulgaris L.)
Caldas and Blair, 2009a exp2Inheritance of seed condensed tannins and their relationship with seed-coat color and pattern genes in common bean (Phaseolus vulgaris L.)
Caldas and Blair, 2009a exp3Inheritance of seed condensed tannins and their relationship with seed-coat color and pattern genes in common bean (Phaseolus vulgaris L.)
Properties
Additional details for this publication include:
Property NameValue
DOI10.1007/s00122-009-1023-4
KeywordsNULL
Cross References
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DatabaseAccession
DOI: Document Object IdentifierDOI:10.1007/s00122-009-1023-4
PMID: PubMedPMID:19363663
Stocks
This publication contains information about 2 stocks:
Stock NameUniquenaemType
DOR364_x_G19833_bDOR364_x_G19833_bMapping Population
BAT93_x_JALOEEP558_aBAT93_x_JALOEEP558_aMapping Population