The CGIAR
HarvestPlus Challenge Program on biofortification of crops has launched
a multidonor-supported research program to genetically fortify crops
with micronutrients essential for human nutrition. Iron, zinc, and
vitamin A have been identified as priority nutrients because their
deficiency poses a serious threat to health in the poorer sections
of society, especially in South Asia and sub-Saharan Africa. About
3.5 billion people in the developing world suffer from iron deficiency.
The primary victims are women and pre-school children. About half
a million children go blind every year due to vitamin A deficiency.
Hundreds of thousands of people suffer from zinc deficiency, which
causes stunted growth, susceptibility to infections, and skin lesions.
ICARDA, a partner in the HarvestPlus Challenge program, has been involved
in the development of bio-fortified crops through genetic manipulation.
Lentil, one of ICARDA's global mandate crops, is one of the 16 target
crops in the HarvestPlus Challenge Program.
Preliminary analysis of more than 1000 lentil accessions, including
germplasm, breeding lines, and released varieties, for iron and zinc
has shown tremendous variability among the lentil lines. This provides
the opportunity for breeders to develop micronutrient-dense lentil
cultivars. Breeders are using lines that contain high levels of micronutrients
for crossing to develop lentils with higher iron and zinc content.
Screening for vitamin A content is yet to start.
Some of the cultivars grown by farmers represent a spillover benefit
from ICARDA's breeding program for high-yielding and disease-resistant
lentil lines. For example, a popular and widely grown lentil variety
'Alemaya' has been found to possess a high content of iron (82 mg/kg)
and zinc (66 mg/kg) in Ethiopia. Also, breeders have found a high
iron content in 'Idlib-2' (73 mg/kg) and 'Idlib-3' (72 mg/kg) in Syria,
a high iron and zinc content in 'Beleza' (iron 74 mg/kg and zinc 56
mg/kg) released in Portugal, and high zinc content in 'Meyveci-2001'
(53 mg/kg) in Turkey. These varieties are contributing to reduce micronutrient
deficiency in the developing world.
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