Record Details

Doubling grain Fe and Zn concentration in sorghum to combat the micronutrient malnutrition in sorghum eating populations

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/11779/
 
Title Doubling grain Fe and Zn concentration in sorghum to combat the micronutrient malnutrition in sorghum eating populations
 
Creator Ashok Kumar, A
Anuradha, K
Phuke, R
Gorthy, S
Jaganathan, J
Gaddameedi, A
Hariprasanna, K
Kalpande, H V
Mehtre, S P
 
Subject Sorghum
Food and Nutrition
 
Description Dietary induced micronutrient malnutrition (MNM) is one of the greatest global challenges of
our times and India has largest number of malnourished people globally. Sorghum is among
the major staples and a cheapest sources of micronutrients therefore, biofortification of
sorghum is of high priority. From screening of more than 4000 accessions and breeding
lines we identified promising donors for Fe and Zn and established the genetic control. Fe
and Zn are quantitatively inherited. While grain Zn in predominantly under additive gene
control, non-additive gene actions also has role in controlling grain Fe. To develop hybrids
with high Fe and Zn both parents should have high Fe and Zn. We demonstrated the prediction
of F1 hybrid performance based on mid-parental value for Fe and Zn. Both Fe and Zn are
positively correlated (r=0.6 to 0.8) and simultaneous improvement for Fe and Zn is feasible.
Using RIL population sorghum genetic map was constructed with 2,088 markers (1148 DArTs,
927 DArTSeqs and 13 SSRs) covering 1355.52 cM with an average marker interval of
0.6cM. Forty-seven QTLs (individual) and 7 QTLs (across) environments with small maineffect
and 21 co-localized QTLs for Fe and Zn were identified.
 
Date 2018-12
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://oar.icrisat.org/11779/1/NGC-2018_DoublinggrainFeandZnconcentrationinsorghumtocombatthemicronutrientmalnutritioninsorghumeatingpopulations%20%281%29.pdf
Ashok Kumar, A and Anuradha, K and Phuke, R and Gorthy, S and Jaganathan, J and Gaddameedi, A and Hariprasanna, K and Kalpande, H V and Mehtre, S P (2018) Doubling grain Fe and Zn concentration in sorghum to combat the micronutrient malnutrition in sorghum eating populations. In: 1st National Genetics Congress on Genetics for Sustainable Food, Health and Nutrition Security, December 14-16, 2018, New Delhi.