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Baseline status and effect of genotype, environment and genotype × environment interactions on iron and zinc content in Indian chickpeas (Cicer arietinum L.)

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Relation http://oar.icrisat.org/11750/
https://doi.org/10.1007/s10681-020-02673-Z
doi:10.1007/s10681-020-02673-Z
 
Title Baseline status and effect of genotype, environment and genotype × environment interactions on iron and zinc content in Indian chickpeas (Cicer arietinum L.)
 
Creator Misra, G
Joshi-Saha, A
Salaskar, D
Reddy, K S
Dixit, G P
Srivastava, A K
Jayalakshmi, V
Pithia, M S
Gaur, P M
 
Subject Biofortification
Chickpea
Genetics and Genomics
Food and Nutrition
 
Description Genetic biofortification is a cost-effective
strategy to address iron (Fe) and zinc (Zn) deficiencies
prevalent worldwide. Being a rich and cheap protein
source, chickpea, a food legume grown and consumed
across the globe, is a good target for biofortification.
Nineteen popular commercial cultivars of India were
analysed for Fe and Zn content at four locations
representing different agro-climatic zones to study the
genotypic and genotype 9 environment interactions
on Fe and Zn. Distribution of phytic acid (PA), an
important anti-nutrient that chelates and reduces the
mineral bioavailability, was also analysed. Influence
of other agronomic traits like days to flowering, plant height and 100 seed weight on Fe and Zn content was
also studied. All the traits showed significant G and
G 9 E interactions; however, the magnitude of variance
of GXE was lesser than that of G alone.
Genotype ? genotype-by-environment and genotype-
by-trait biplots were used to assess the relations
between different environments, genotypes and traits.
Iron and zinc content showed positive correlation
between them indicating a possibility of their coselection
in breeding. A negative correlation between
Zn and PA was observed. However, there was very
low variability for PA content in the cultivars under
study, indicating that moderate PA is naturally
selected in these cultivars during breeding. Despite
significant GXE interactions, cultivars with high Fe
([70 lg/g) and Zn content ([40 lg/g) at three out of
four test locations were identified. Such genotypes will be useful in breeding programs for enhancing mineral
micronutrient content and understanding the molecular
mechanisms governing their differential uptake.
 
Publisher Springer
 
Date 2020-08
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://oar.icrisat.org/11750/1/s10681-020-02673-z.pdf
Misra, G and Joshi-Saha, A and Salaskar, D and Reddy, K S and Dixit, G P and Srivastava, A K and Jayalakshmi, V and Pithia, M S and Gaur, P M (2020) Baseline status and effect of genotype, environment and genotype × environment interactions on iron and zinc content in Indian chickpeas (Cicer arietinum L.). Euphytica (TSI), 216 (9). pp. 1-16. ISSN 0014-2336