Genetic Correlation Between Fe and Zn Biofortification and Yield Components in a Common Bean (Phaseolus vulgaris L.).

Publication Overview
TitleGenetic Correlation Between Fe and Zn Biofortification and Yield Components in a Common Bean (Phaseolus vulgaris L.).
AuthorsDiaz S, Polania J, Ariza-Suarez D, Cajiao C, Grajales M, Raatz B, Beebe SE
TypeJournal Article
Journal NameFrontiers in plant science
Volume12
Year2021
Page(s)739033
CitationDiaz S, Polania J, Ariza-Suarez D, Cajiao C, Grajales M, Raatz B, Beebe SE. Genetic Correlation Between Fe and Zn Biofortification and Yield Components in a Common Bean (Phaseolus vulgaris L.).. Frontiers in plant science. 2021; 12:739033.

Abstract

Common bean (Phaseolus vulgaris L.) is the most important legume for direct human consumption worldwide. It is a rich and relatively inexpensive source of proteins and micronutrients, especially iron and zinc. Bean is a target for biofortification to develop new cultivars with high Fe/Zn levels that help to ameliorate malnutrition mainly in developing countries. A strong negative phenotypic correlation between Fe/Zn concentration and yield is usually reported, posing a significant challenge for breeders. The objective of this study was to investigate the genetic relationship between Fe/Zn. We used Quantitative Trait Loci (QTLs) mapping and Genome-Wide Association Studies (GWAS) analysis in three bi-parental populations that included biofortified parents, identifying genomic regions associated with yield and micromineral accumulation. Significant negative correlations were observed between agronomic traits (pod harvest index, PHI; pod number, PdN; seed number, SdN; 100 seed weight, 100SdW; and seed per pod, Sd/Pd) and micronutrient concentration traits (SdFe and SdZn), especially between pod harvest index (PHI) and SdFe and SdZn. PHI presented a higher correlation with SdN than PdN. Seventy-nine QTLs were identified for the three populations: 14 for SdFe, 12 for SdZn, 13 for PHI, 11 for SdN, 14 for PdN, 6 for 100SdW, and 9 for Sd/Pd. Twenty-three hotspot regions were identified in which several QTLs were co-located, of which 13 hotpots displayed QTL of opposite effect for yield components and Fe/Zn accumulation. In contrast, eight QTLs for SdFe and six QTLs for SdZn were observed that segregated independently of QTL of yield components. The selection of these QTLs will enable enhanced levels of Fe/Zn and will not affect the yield performance of new cultivars focused on biofortification.

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Pages

Projects
This publication contains information about 1 projects:
Project NameDescription
Bean-Fe_Zn_Biofort-Diaz-2022
Featuremaps
This publication contains information about 3 maps:
Map Name
Bean-SCR16/SMC40-F6.8-RIL
Bean-SMC44/SCR9-F6.8-RIL
Bean-SMC33/SCR16-F6.8-RIL
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SMC33/SCR16-F6.8-RILSMC33/SCR16-F6.8-RILpopulation
Properties
Additional details for this publication include:
Property NameValue
Publication ModelElectronic-eCollection
ISSN1664-462X
pISSN1664-462X
Publication Date2021
Journal AbbreviationFront Plant Sci
DOI10.3389/fpls.2021.739033
Elocation10.3389/fpls.2021.739033
CopyrightCopyright © 2022 Diaz, Polania, Ariza-Suarez, Cajiao, Grajales, Raatz and Beebe.
LanguageEnglish
Language Abbreng
Publication TypeJournal Article
Journal CountrySwitzerland