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The Pacific yam (Dioscorea nummularia Lam.), an under-exploited tuber crop from Melanesia

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Abstract

This study aims to explore the potential of Dioscorea nummularia Lam. and to gather information as a prelude to its improvement by plant breeding. After a taxonomic clarification and a review of the botanical data, its geographical areas of origin and distribution are determined. A germplasm survey conducted on nine islands of Vanuatu enabled the collection of 110 accessions corresponding to 84 cultivars. These were grouped into: (1) wild forms under domestication, (2) annual types, (3) perennial-type cultivars of D. nummularia and (4) natural interspecific hybrids with D. alata L. Within each group, remarkable morphological variation exists for stem spininess, leaf shape, emerging leaf colour, tuber shape and tuber flesh colour. Selected accessions examined for ploidy had chromosome numbers ranging from 2n = 3x = 60 to 2n = 6x = 120. Chloroplast counts conducted on stomatal guard cells confirmed the variation in ploidy levels. Eight different male cultivars were studied for pollen fertility, but <5% of the pollen grains appeared to be fertile when stained with acetocarmine. However, profuse flowering and synchrony favour pollination and result in fruit set. All accessions are resistant to anthracnose. Viruses were detected but are morphologically not discernible, with no incidence on yield. Physicochemical analyses of tubers from 16 accessions revealed that D. nummularia and interspecific hybrids have high percentages of dry matter (mean of 33.11%) and starch (82.81%). The Pacific yam could be improved through conventional hybridisation or used for interspecific crosses with related economically important species. Recommendations are made for further research.

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References

  • Abbot IA (1992) La’au Hawaii: traditional Hawaiian uses of plants. Bishop Museum Press, Honolulu

    Google Scholar 

  • Abraham K, Nair PG (1991a) Detection of ploidy levels by stomatal chloroplast count in Dioscorea alata L. J Root Crops ISRC National Symposium 1990 special issue 1–4

  • Abraham K, Nair PG (1991b) Polyploidy and sterility in relation to sex in Dioscorea alata L. (Dioscoreaceae). Genetica 83:93–97

    Article  Google Scholar 

  • Asiedu R, Sartie A (2010) Crops that feed the world: yams for income and food security. Food Secur 2:205–315

    Article  Google Scholar 

  • Barrau J (1956) Les ignames alimentaires des iles du Pacifique Sud. JATBA 3(7–8):385–401

    Article  Google Scholar 

  • Barrau J (1965) Witness of the past: notes on some food plants of Oceania. Ethnology 4(3):282–294

    Article  Google Scholar 

  • Bedford S (2006) Pieces of the Vanuatu puzzle: archaeology of the North, South and Centre. Terra Australis, vol 23. The Australian National University, Canberra

    Google Scholar 

  • Bourke M, Vlassak V (2004) Estimates of food crop production in Papua New Guinea. Land Management Group. The Australian National University, Canberra

    Google Scholar 

  • Bourret D (1973) Etude ethnobotanique des Dioscoreacées alimentaires: ignames de Nouvelle-Calédonie. Dissertation, Paris University

  • Bourrieau M (2000) Valorisation des racines et tubercules tropicaux pour l’alimentation humaine en Océanie: le cas du laplap au Vanuatu. Thesis, ENSIA-SIARC

  • Bradbury JH, Holloway WD (1988) Chemistry of tropical root crops: significance for nutrition and agriculture in the Pacific. ACIAR Monograph No. 6, Canberra

  • Brown R (1810) Prodomus florae Novae Hollandiae et insulae Van Diemen (Prodromus of the flora of New Holland and Van Diemen’s Land). Dioscoreae. Richard Taylor & Son, London

    Google Scholar 

  • Brunt AA, Jackson GVH, Frison EA (1989) Technical guidelines for the safe movement of yam germplasm. Food and Agriculture Organization of the United Nations, Rome/International Board for Plant Genetic Resources, Rome

    Google Scholar 

  • Burkill IH (1951) Dioscoreaceae: flora Malesiana. In: Hansen B (ed) Dioscoreaceae: studies in the flora of Thailand. Dansk Botanisk Arkiv, Copenhagen, pp 461–463

    Google Scholar 

  • Burkill IH (1960) Organography and evolution of Dioscoreaceae, the family of yams. J Linn Soc 56(367):319–412

    Article  Google Scholar 

  • Cable WJ, Wilson JE (1984) Dioscorea nummularia Lam.: the primary edible yam of western Samoa. In: Proceedings of the sixth symposium of the ISTRC. International Potato Centre (CIP), Lima, pp 599–605

  • Chaïr H, Sardos J, Supply A, Mournet P, Malapa R, Lebot V (2016) Plastid phylogenetics of Oceania yams (Dioscorea spp., Dioscoreaceae) reveals natural interspecific hybridization of the greater yam (D. alata). Bot J Linn Soc 180(3):319–333

    Article  Google Scholar 

  • Chi VL, Hue NTG, Trinh LG (2005) Root and tuber crops in Vietnam: focus on yam germplasm. Ethnobot Res Appl 5:259–264

    Google Scholar 

  • Coursey DG (1967) Yams: an account of the nature, origins, cultivation and utilisation of the useful members of the Dioscoreaceae. Tropical agriculture series. Longmans, London

    Google Scholar 

  • Cruz VMV, Altoveros NC, Mendioro MS, Ramirez DA (1999) Geographical patterns of diversity in the Philippines edible yam collection. Plant Gene Res News 119:7–11

    Google Scholar 

  • Degras LM (1993) The yam: a tropical root crop. MacMillan Press Ltd, London

    Google Scholar 

  • Ding Z, Gilbert MG (2000) Dioscoreaceae. In: Wu Z, Raven PH (eds) Flora of China, vol 24. Science Press, Missouri Botanical Garden Press, Beijing, St. Louis, pp 276–296

    Google Scholar 

  • Essad S (1984) Variation géographique des nombres chromosomiques de base et polyploïdie dans le genre Dioscorea à propos du dénombrement des espèces transversa Brown, pilosiuscula Bert. et trifida L. Agronomie 4(7):611–617

    Article  Google Scholar 

  • Fauziah KRP, Mas’udah S (2015) Explorations diversity of Dioscorea spp varieties from Pasuran, East Java: inventory and characterization. Agrivita 37(3):193–203

    Article  Google Scholar 

  • Filloux D, Murrell S, Koohapitagtam M, Golden M, Julian C, Galzi S, Uzest M, Rodier-Goud M, D’Hont A, Vernerey MS, Wilkin P, Peterschmitt M, Winter S, Murrell B, Martin DP, Roumagnac P (2015) The genomes of many yam species contain transcriptionally active endogenous geminiviral sequences that may be functionally expressed. Virus Evol. doi:10.1093/ve/vev002

    PubMed  PubMed Central  Google Scholar 

  • Flach M, Rumawas F (1996) Plant resources of South-East Asia No. 9: plants yielding non-seed carbohydrates. Backhuys Publishers, Leiden

    Google Scholar 

  • French BR (2006) Food plants of Papua New Guinea: a compendium, revised edition. Australia and Pacific Science Foundation, Asgrove

    Google Scholar 

  • French BR (2010) Food plants of the Solomon Islands: a compendium. Part 1. Food Plants International Inc, Devonport

    Google Scholar 

  • Fullagar R, Field J, Denham T, Lentfer C (2006) Early and mid-Holocene tool use and processing of taro (Colocasia esculenta), yam (Dioscorea sp.) and other plants at Kuk Swamp in the highlands of Papua New Guinea. J Archaeol Sci 33(1):595–614

    Article  Google Scholar 

  • Ghosh A (2014) The Genus Dioscorea in Andaman and Nicobar Islands, India. Ind J Plant Sci 3(3):7–14

    Google Scholar 

  • Govaerts R, Wilkin P, Saunders RMK (2007) World checklist of Dioscoreales, yams and their allies. Kew Publishing, Royal Botanic Gardens, Kew

    Google Scholar 

  • Horrocks M, Bedford S (2010) Introduced Dioscorea spp. starch in Lapita and later eposits, Vao Island, Vanuatu. N Z J Bot 48(34):179–183

    Article  Google Scholar 

  • Horrocks M, Bulmer S, Gardner RO (2008a) Plant microfossils in prehistoric archaeological deposits from Yuku shelter, Western Highlands, Papua New Guinea. J Archaeol Sci 35:290–301

    Article  Google Scholar 

  • Horrocks M, Grant-Mackie J, Matisoo-Smith L (2008b) Introduced taro (Colocasia esculenta) and yams (Dioscorea spp.) in Podtanean (2700–1800 years BP) deposits from Mé Auré Cave (WMD007), Moindou, New Caledonia. J Archaeol Sci 35:169–180

    Article  Google Scholar 

  • Hsu KM, Tsai JL, Chen MY, Ku HM, Liu SC (2013) Molecular phylogeny of Dioscorea (Dioscoreaceae) in East and Southeast Asia. Blumea 58:21–27

    Article  Google Scholar 

  • IPGRI/IITA (1997) Descriptors for yam (Dioscorea spp.). International Institute of Tropical Agriculture, Nigeria/International Plant Genetic Resources Institute, Rome

    Google Scholar 

  • Jackson GVH (1994) Taro and yam genetic resources in the Pacific and Asia: a report prepared for the Australian Centre for International Agricultural research and the International Plant Genetic Research Institute. Anutech Pty Ltd, Canberra

    Google Scholar 

  • Kenyon L, Lebas B, Seal S, Lebot V (2000) Viruses infecting Dioscorea yams in the South Pacific islands. In: Twelfth symposium of the international society for tropical root crops (ISTRC). Potential of root crops for food and industrial resources. Tsukuba, pp 395–397

  • Kenyon L, Lebas BSM, Seal SE (2008) Yams (Dioscorea spp.) from the South Pacific islands contain many novel badnaviruses: implications for international movement of yam germplasm. Arch Virol. doi:10.1007/s00705-008-0062-5

    PubMed  Google Scholar 

  • Kinaston R, Buckley H, Valentin F, Bedford S, Spriggs M, Hawkins S, Herrscher E (2014) Lapita diet in remote Oceania: new stable isotope evidence from the 3000-year-old Teouma site, Efate Island, Vanuatu. PLoS ONE 9(3):e90376. doi:10.1371/journal.pone.0090376

    Article  PubMed  PubMed Central  Google Scholar 

  • Kirch PV (1994) The wet and the dry: irrigation and agricultural intensification in Polynesia. The University of Chicago Press, Chicago

    Google Scholar 

  • Knuth R (1924) Dioscoreaceae. In: Engler HGA (ed) Das Pflanzenreich. Verlag von Wilhelm Engelmann, Leipzig, pp 1–387

    Google Scholar 

  • Lamarck JBAPM (1789) Encyclopédie Méthodique Botanique, 3rd edn. Panckoucke, Plomteux, Paris

    Google Scholar 

  • Lebot V (1999) Biomolecular evidence for plant domestication in Sahul. Genet Resour Crop Evol 46(6):619–628

    Article  Google Scholar 

  • Lebot V (2009) Tropical root and tuber crops: cassava, sweet potato, yams and aroids. Centre for Agriculture and Bioscience International, Wallingford

    Google Scholar 

  • Lebot V, Malapa R, Molisalé T, Marchand JL (2006) Physico-chemical characterisation of yam (Dioscorea alata L.) tubers from Vanuatu. Genet Resour Crop Evol 53(6):1199–1208

    Article  Google Scholar 

  • Lepofsky D (2003) The ethnobotany of cultivated plants of the Maohi of the Society Islands. Econ Bot 57(1):73–92

    Article  Google Scholar 

  • Low T (1991) Wild food plants of Australia. HarperCollins Publishers, Sydney

    Google Scholar 

  • Malapa R (2005) Description de la diversité de Dioscorea alata L. du Vanouatou à l’aide de marqueurs agro-morphologiques et moléculaires (AFLP). Relations avec les autres espèces de la section Enantiophyllum. Dissertation, University of Rennes

  • Malapa R, Arnau G, Noyer JL, Lebot V (2005) Genetic diversity of the greater yam (Dioscorea alata L.) and relatedness to D. nummularia Lam. and D. transversa Br. as revealed with AFLP markers. Genet Resour Crop Evol 52(7):919–929

    Article  CAS  Google Scholar 

  • Malapa R, Noyer JL, Marchand JL, Lebot V (2006) Genetic relationship between D. alata and D. nummularia as revealed by AFLP. In: Motley TJ, Zerega N, Cross H (eds) Darwin’s harvest. Columbia University Press, New York, pp 239–265

    Google Scholar 

  • Misra RC, Sahoo HK, Pani DR, Bhandari DC (2013) Genetic resources of wild tuberous food plants traditionally used in Similipal Biosphere Reserve, Odisha, India. Genet Resour Crop Evol 60:2033–2054

    Article  Google Scholar 

  • Parkinson S (1984) The preservation and preparation of rootcrops and some other traditional foods in the South Pacific. RAS 83/001, Field document 1. FAO/SPC, Suva

  • Phillips S, Briddon RW, Brunt AA, Hull R (1999) The partial characterisation of badnavirus infecting the greater Asiatic or water yam (Dioscorea alata). J Phytopath 147:265–269

    Article  CAS  Google Scholar 

  • Prain D, Burkill IH (1939) An account of the Genus Dioscorea. Part II: species which turn to the right. Ann Rev Bot Gard 14:211–528

    Google Scholar 

  • Rolland-Sabaté A, Amani NG, Dufour D, Guilois S, Colonna P (2003) Macromolecular characteristics of ten yam (Dioscorea spp.) starches. J Sci Food Agric 83:927–936

    Article  Google Scholar 

  • Rumphius GE (1747) Herbarium Amboinense, vol 5, Amstelaedami: Apud Fransicum Chaguion, Joannem Catuffe, Hermannum Uytwerf

  • Salda VB, Ramsden L, Sun M, Corke H (1998) Genetic variation in physical properties of flour from selected Asian yams (Dioscorea spp.). Trop Agric 75(2):212–216

    Google Scholar 

  • Sardos J, Muller S, Duval MF, Noyer JL, Lebot V (2015) Root crops diversity and agricultural resilience: a case study of traditional agrosystems in Vanuatu (Oceania). Agric Human Values. doi:10.1007/s10460-015-9657-0

    Google Scholar 

  • Sastrapradja S (1982) Dioscorea alata: its variation and importance in Java, Indonesia. In: Miège J, Lyonga SN (eds) Yams-ignames. Clarendon Press, Oxford, pp 44–49

    Google Scholar 

  • Schols P, Furness CA, Wilkin P, Smet E, Cielen V, Huysmans S (2003) Pollen morphology of Dioscorea (Dioscoreaceae) and its relation to systematics. Bot J Linn Soc 143:375–390

    Article  Google Scholar 

  • Scott GJ, Rosegrant M, Ringler C (1998) Roots and tubers for the 21st century: trends, projections and policy for developing countries. Food, agriculture and the environment: discussion paper. International Food Policy Research Institute. Washington, D.C

  • SPYN (2003) Yam: cultivar selection for disease resistance and commercial potential in the Pacific islands. EU-INCO-DC project final report. Cirad, Montpellier

  • Summerhayes GR, Leavesley M, Fairbairn A, Mandui H, Field J, Ford A, Fullagar R (2010) Human Adaptation and Plant Use in Highland New Guinea 49,000 to 44,000 years ago. Science 330:78–81

    Article  CAS  PubMed  Google Scholar 

  • Taylor M, McGregor A, Dawson B (2016) Vulnerability of Pacific island agriculture and forestry to climate change. Pacific Community (SPC), Nouméa

    Google Scholar 

  • Telford IRH (1986) Dioscoreaceae. Flora Aust 46:196–202

    Google Scholar 

  • Van Wijmeersch P, Bule F (1988) Research and development of root crops in Vanuatu. Food and Agriculture Organization of the United Nations, TCP/VAN/4403 and 6652, Santo

  • Viruel J, Segarra-Moragues JG, Raz L, Forest F, Wilkin P, Sanmartin I, Catalan P (2016) Late Cretaceous–early Eocene origin of yams (Dioscorea, Dioscoreaceae) in the Laurasian Palaearctic and their subsequent Oligocene-Miocene diversification. J Biogeogr 43:750–762

    Article  Google Scholar 

  • Walter A, Lebot V (2007) Gardens of Oceania. ACIAR Monograph No. 122, Canberra

  • Whistler WA (2009) Plants of the Canoe people: an ethnobotanical voyage through Polynesia. National Tropical Botanical Garden, Lawai

    Google Scholar 

  • Wilkin P, Thapyai C (2009) Flora of Thailand 10(1):1–140. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok

  • Wilkin P, Thapyai C, Chayamarit K (2007) Lectotypification of Dioscorea L. (Dioscoreaceae) names from Thailand. Kew Bull 62(2):251–257

    Google Scholar 

  • Zhu F (2015) Isolation, composition, structure, properties, modifications, and uses of yam starch. Compr Rev Food Sci Food Saf 14:357–386

    Article  CAS  Google Scholar 

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Acknowledgements

This work was financially supported by the ‘Agropolis Fondation’ under the reference ID 1403-023 through the ‘Investissements d’avenir’ programme (Labex Agro:ANR-10-LABX-0001-01).

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Authors and Affiliations

  1. CIRAD, UMR AGAP, P.O. Box 946, Port-Vila, Vanuatu

    V. Lebot

  2. VARTC, P.O. Box 231, Luganville, Santo, Vanuatu

    R. Malapa

  3. ICAR-CTCRI, Thiruvananthapuram, Kerala, 695017, India

    K. Abraham

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  1. V. Lebot
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Correspondence to V. Lebot.

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Lebot, V., Malapa, R. & Abraham, K. The Pacific yam (Dioscorea nummularia Lam.), an under-exploited tuber crop from Melanesia. Genet Resour Crop Evol 64, 217–235 (2017). https://doi.org/10.1007/s10722-016-0475-z

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