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Heterotic pools in Asian and African pearl millet populations
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Heterotic pools in Asian and African pearl millet populations

  1. About ICRISAT: www.icrisat.org ICRISAT’s scientific information: http://EXPLOREit.icrisat.org May 2017 Heterotic pools in Asian and African pearl millet populations Concept Activities Strategy Outcome ▪▪ Morphological characterization of the diverse populations. ▪▪ To determine the molecular marker (SSR)-based genetic diversity within and between pearl millet populations (Asian and African). ▪▪ To establish heterotic pool patterns in a broad range of Pearl millet populations. ▪▪ To determine the fertility restoration or maintainer frequency of diverse populations. ▪▪ Plant material: 48 diverse populations (Asian and African). ▪▪ Number of SSR markers: 56. ▪▪ Assessment of inter- and intra-population distances. ▪▪ Inter-population crossing of diverse populations. ▪▪ 14 populations were selected and crossed in full diallele fashion to produce 91 population hybrids. ▪▪ Evaluation of crosses to determine heterotic patterns: 91 hybrids, 14 parents and 5 checks were planted in two replications at 3 locations (ICRISAT, Palem and Jamnagar). ▪▪ Once the heterotic groups are established, it would be possible to derive new wave of inbred lines from the identified populations showing highest heterosis. This will lead to the development of high-yielding pearl millet hybrids for the future. ▪▪ Identifying new sources of restorers for A1, A4 and A5 cytoplasm. ▪▪ Wide variability exists among different pearl millet populations. This can be exploited for deriving new inbred lines and developing hybrids with high heterosis through formation of heterotic pools. ▪▪ The proposed study will identify heterotic pool patterns among available diverse populations (involving promising Asian and African origin/bred populations) through assessment of intra- and inter-population genetic distances based on molecular markers. Clustering pattern of pearl millet populations based on SSR markers. K Sudarshan Patil Ph.D. Research Scholar, Scholarship: CRP-Dryland Cereals Funded by: Sehgal Foundation, USA
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