Intra-population genetic variance for grain iron and zinc contents and agronomic traits in pearl millet

Govindaraj, Mahalingam; Kedar, N.; Shanmugasundaram, P.

doi:10.1016/j.cj.2015.11.002

Cited by 26 publications

(19 citation statements)

References 18 publications

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“…The Pearson correlation coefficient among the trait means showed that, association was very high (r = 0.8, p < 0.01) between grain Fe and Zn content (Table 6). Earlier reports on pearl millet also showed similar relationship (Govindaraj et al 2016;Kanatti et al 2014Kanatti et al , 2016, as they may share some common physiological process, right from uptake of micronutrients from soil to finally sequestration in to the grains. Previous study in pearl millet by Kumar et al (2010), reported two co-mapped QTLs for both of these traits.…”

Section: Association Analysismentioning

confidence: 66%

Evaluation of pearl millet [Pennisetum glaucum (L.) R. Br.] for grain iron and zinc content in different agro climatic zones of India

Anuradha¹,

Satyavathi²,

Meena³

et al. 2017

Ind. Jrnl. Gen. Plnt. Bree.

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Micronutrient malnutrition, especially the paucity of iron (Fe) and zinc (Zn) is posing a big threat to the world affecting nearly 25% of worldwide population. Pearl millet is endowed with huge amount of variability for micronutrients especially for grain Fe and Zn content. Micronutrient enrichment in pearl millet is possible by identifying stable genotypes for high levels of micronutrients and utilising them in breeding programme. In this context, a set of 40 pearl millet genotypes along with one check, Dhanshakti (G30), were evaluated at three different agro climatic zones during the year 2014 for grain iron (Fe) and zinc (Zn) contents using Atomic Absorption Spectrometry. The genotypes contributed 58.3% and 52.8% of the total variation for grain Fe and Zn content, respectively. The magnitude of variation contributed by interaction component was also relatively high (39.7% and 32.5% for grain Fe and Zn). Both AMMI and GGE biplot analysis identified desirable genotypes; PPMI 708 (G40), PPMI 1102 (G25) and PPMI 683 (G39) for grain Fe content, whereas PPMI 708 (G40), PPMI 1116 (G24) and PPMI 683 (G39) for grain Zn content. The Pearson correlation coefficient for grain Fe and Zn content showed that both traits are highly associated (r = 0.8, p <0.01) and these traits did not associate significantly with grain yield. Hence, there is possibility for simultaneous improvement of both grain Fe and Zn content without compromising for grain yield.

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Section: Association Analysismentioning

confidence: 66%

Evaluation of pearl millet [Pennisetum glaucum (L.) R. Br.] for grain iron and zinc content in different agro climatic zones of India

Anuradha¹,

Satyavathi²,

Meena³

et al. 2017

Ind. Jrnl. Gen. Plnt. Bree.

View full text Add to dashboard Cite

show abstract

“…Previous reports also indicate the greater importance of additive gene action for grain Fe and Zn in pearl millet [12,15,16]. Heritability of these micronutrients was very high and not much influenced by environments [17][18][19] Pedigree breeding method is a most common method in pearl millet breeding which is entirely deals with the progenies derived from bi-parental crosses and this method well described by Andrews et al (1997) [20]. This method also utilizes composites as a base population that has potential to accelerate the genetic gains for yield in hybrids and widen the genetic base of hybrid-parents and cultivars.…”

Section: Biofortification Breeding Approachmentioning

confidence: 99%

Breeding Biofortified Pearl Millet Varieties and Hybrids to Enhance Millet Markets for Human Nutrition

Govindaraj¹,

Rai²,

Cherian³

et al. 2019

Preprint

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Pearl millet is an important food crop in the arid and semi-arid tropical regions of Africa and Asia. These regions are home to millions of poor smallholder's households living in harsh agroecology and reported higher prevalence of malnutrition. . Indeed, pearl millet is one of the food crops they continue to grow for their food and nutritional security. Considering inherent high nutritional values and climate resilient nature (drought and heat), demand for pearl millet as food, beside valued for its Stover as a source of livestock fodder, is projected to grow strongly in Asia (India) and Africa (West and Central Africa). Iron (cause anemia) and zinc (cause stunting) deficiencies are widespread and serious public health problems worldwide, including India and Africa. Biofortification is a cost-effective and sustainable agricultural strategy to address this problem. Aim of this review is to provide current status and future directions of pearl millet biofortification for growing nutrition markets. Research on pearl millet has shown that large genetic variability (30-140 mg kg −1 Fe and 20-90 mg kg −1 Zn) available in this crop can be effectively utilized to develop high-yielding cultivars with high iron and zinc densities. Both Open -pollinated varieties (Dhanshakti and Chakti) and hybrids (ICMH 1202, ICMH 1203 and ICMH 1301) of pearl millet with high grain yield (>3.5 tons/ha in hybrids) and high levels of iron (70-75 mg kg −1 ) and zinc (35-40 mg kg −1 ) densities have been developed and released in India. Currently, India growing >70,000 ha of biofortified pearl millet, besides more pipeline hybrids and varieties are under various stage of testing at the national (India) and international (west Africa) trials for possible release. Biofortification program utilized the existing high-Fe lines identified from the mainstream program to serve the immediate objective of developing high-yielding and high-Fe hybrids. Genomic tools will be an integral part of biofortification breeding program particularly to use diagnostic markers and genomic selection for micronutrients. Several biofortified varieties and hybrids released in pearl millet. Till today, no markets to promote biofortified varieties and hybrids as no incentive price and such products aims to address food and nutritional security challenges simultaneously. The demand is likely to increase only after investment in crop breeding and integration into modern public distribution system, nutritional intervention schemes, private seed and food companies with strong mainstreaming nutritional policies. In the non-traditional regions, this will contribute to livestock and poultry feed industry as spill-over benefits to improve nutrition. The following sections of this review describing various aspects of breeding for increased market opportunity of this crop towards addressing micronutrient malnutrition.

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“…Previous reports also indicate the greater importance of additive gene action for grain Fe and Zn in pearl millet [12,15,16]. The heritability of these micronutrients was very high and not much influenced by the environments [17][18][19]. The pedigree breeding method is a most common method in pearl millet breeding which deals entirely with the progenies derived from bi-parental crosses, and this method is well described by Andrews et al [20].…”

Section: Biofortification Breeding Approachmentioning

confidence: 99%

Breeding Biofortified Pearl Millet Varieties and Hybrids to Enhance Millet Markets for Human Nutrition

et al. 2019

Self Cite

View full text Add to dashboard Cite

Pearl millet is an important food crop in the arid and semi-arid tropical regions of Africa and Asia. Iron and zinc deficiencies are widespread and serious public health problems worldwide, including in India and Africa. Biofortification is a cost-effective and sustainable agricultural strategy to address this problem. The aim of this review is to provide the current biofortification breeding status and future directions of the pearl millet for growing nutrition markets. Research on the pearl millet has shown that a large genetic variability (30–140 mg kg−1 Fe and 20–90 mg kg−1 Zn) available in this crop can be effectively utilized to develop high-yielding cultivars with high iron and zinc densities. Open-pollinated varieties (Dhanashakti) and hybrids (ICMH 1202, ICMH 1203 and ICMH 1301) of pearl millet with a high grain yield and high levels of iron (70–75 mg kg−1) and zinc (35–40 mg kg−1) densities have been developed and released first in India. Currently, India is growing > 70,000 ha of biofortified pearl millet, and furthermore more pipeline cultivars are under various stages of testing at the national (India) and international (west Africa) trials for a possible release. Until today, no special markets existed to promote biofortified varieties and hybrids as no incentive price to products existed to address food and nutritional insecurity simultaneously. The market demand is likely to increase only after an investment in crop breeding and the integration into the public distribution system, nutritional intervention schemes, private seed and food companies with strong mainstreaming nutritional policies. The following sections describe various aspects of breeding and market opportunity for addressing micronutrient malnutrition.

show abstract

Intra-population genetic variance for grain iron and zinc contents and agronomic traits in pearl millet

Cited by 26 publications

References 18 publications

Evaluation of pearl millet [Pennisetum glaucum (L.) R. Br.] for grain iron and zinc content in different agro climatic zones of India

Evaluation of pearl millet [Pennisetum glaucum (L.) R. Br.] for grain iron and zinc content in different agro climatic zones of India

Breeding Biofortified Pearl Millet Varieties and Hybrids to Enhance Millet Markets for Human Nutrition

Breeding Biofortified Pearl Millet Varieties and Hybrids to Enhance Millet Markets for Human Nutrition

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