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Geographical gaps identified in germplasm collections at the ICRISAT genebank
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Geographical gaps identified in germplasm collections at the ICRISAT genebank

  1. About ICRISAT: www.icrisat.org ICRISAT’s scientific information: http://EXPLOREit.icrisat.org Feb 2018 Geographical gaps identified in germplasm collections at the ICRISAT genebank HD Upadhyaya, KN Reddy, M Irshad Ahmed, M Vetriventhan, Gumma Murali Krishna and Senthil Ramachandran ▪▪ Plant genetic resources (PGR) are finite, vulnerable and fast eroding. The ICRISAT genebank at Patancheru, India conserves the largest collections (125,050 accessions) of its mandate crops: sorghum, pearl millet, chickpea, pigeonpea, groundnut and finger millet and five small millets, from 144 countries ▪▪ Gap analysis was performed for identifying geographical gaps in the existing collections for future exploration to ensure the availability of wide variability to researchers ▪▪ FloraMap®, a window based GIS software and passport data were used to predict the probability of species distribution and ArcGIS® was used to prepare the maps ▪▪ Georeferenced accessions in existing collections were plotted over probability maps. Maps showing the districts/provinces with high probability (50%-75%) and few or without collection sites were identified as geographical gaps (shaded area in figures) in the collections (Figures 1-14 and Table 1). Fig. 10 Gaps in chickpea collection from Turkey. Fig. 12. Gaps in Cajanus scarabaeoides collection from South East Asia. Fig. 13. Gaps in pigeonpea collection from East and Southern Africa. Fig. 14. Gaps in groundnut collection from South America Fig. 11 Gaps in Cajanus scarabaeoides collection from India Fig. 9. Gaps in Pennisetum pedicellatum collection.Fig. 8. Gaps in Pennisetum monodii collectionFig. 7. Gaps in pearl millet collection from East and Southern Africa. Fig. 6. Gaps in pearl millet collection from India. Fig. 1. Gaps in sorghum collection from South Asia. Fig. 2. Gaps in sorghum collection from East Africa. Fig. 3. Gaps in sorghum collection from West and Central Africa. Fig. 4. Gaps in sorghum collection from Southern Africa. Fig. 5. Gaps in pearl millet collection from West and Central Africa. Table 1. Summary of geographical gaps (districts/provinces) identified in germplasm collections at the ICRISAT genebank, India. Crop Total collection (countries) Region/ Collection studied No. of georeferenced landraces (countries represented) No. of geographical gaps identified No. of countries with gaps Reference Figure no. Sorghum 39,923 (93) South Asia 5340 (5) 131 4 Upadhyaya et al 2016, PGR doi:10.1017/ S147926211600023X Fig. 1 East Africa 7914 (10) 153 10 Upadhyaya et al 2016, (AJCS 11(04): 424-437) Fig. 2 West and Central Africa 3991 (12) 386 11 Upadhyaya et al. 2017, The Crop Journal doi:10.1016/j. cj.2017.07.002 Fig. 3 Southern Africa 2343 (8) 108 8 - Fig. 4 Pearl millet 23,092 (52) West and Central Africa 6434 (8) 145 6 Upadhyaya et al 2009, PGR 8(1): 45-51 Fig. 5 Asia 5497 (2) 146 3 Upadhyaya et al 2010, PGR 8(3): 267-276. Fig. 6 East and Southern Africa 3750 (11) 110 11 Upadhyaya et al 2012, PGR 10(3): 202-213 Fig. 7 Pennisetum monodii collection 335 (13) 354 8 Upadhyaya et al 2014, PGR 12(2): 226-235 Fig. 8 Pennisetum pedicellatum collection 134 (8) 194 21 Upadhyaya et al 2014, IJPGR 27(2): 93-101 Fig. 9 Chickpea 20,602 (59) Collection from Turkey 516 (1) 189 1 - Fig. 10 Pigeonpea 13,771 (74) Cajanus scarabaeoides collection 76 (5) 790 12 Upadhyaya et al 2011, PGR 11(1): 3-14 Fig. 11 and Fig. 12 East and Southern Africa 916 (7) 138 7 Upadhyaya et al 2015, IJPGR 28(2): 180-188 Fig. 13 Groundnut 15,446 (92) South America 1078 (7) 2,913 9 - Fig. 14
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