Identified gaps for Vigna genepool

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We found data for 68 wild species and 51 infraspecific taxa of different wild species, accounting to a total of 119 taxa for analysis. The different taxa were found to be classified as follows, according to their closeness to the cropped species Vigna unguiculata subsp. unguiculata var. unguiculata using Maxted et al., (2004) as follows:

The analysis dataset (download) contained 8953 observations, with 6444 (72%) being herbarium specimens and 2509 (28%) being genebank accessions. The average number of total samples per taxon was 75 (but with standard deviation of 152), which indicates that the information is abundant but concentrated in certain taxa, probably in those more studied over time such as V. subterranea, V. unguiculata.

The gap analysis of the Vigna genepool found that there are 48 taxa that are either underrepresented or not represented in genebank holdings out of the 119 taxa under analysis; 48 of these taxa have less than 10 observations in total, which indicates the urgent need of a collecting mission for them (or the need of more genebank and herbarium data readily available). The rest of these taxa were mapped and their potential collecting zones are shown as follows:

Potential sampling richness

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Potential sampling zones

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Vigna high priority taxa were found to be distributed in Africa. Zones in the figures above are those in which the species is likely to exist and no genebank accessions have been collected.

Brief description of data used in the analysis

The table below shows the number of records (herbarium, germplasm, total) used per species for the Eleusine genepool gap analysis.

Species’ taxonomy was reviewed using Maxted et al. (2004) as a first stage, the GRIN taxonomical review in second place, and Maxted and Kell (2009). After cross-checking and correcting both synonyms and orthography of the species’ names, a thorough georeferencing process is carried out to obtain a spatially explicit database containing as many records as possible for each species. After this, records outside continental boundaries were deleted and a final dataset was produced for analyses.

These are the 34 different collections from which data were readily available:

1. AAU Herbarium Jutlandicum, Botanical Institute, University of Aarhus
2. B Botanischer Garten und Botanisches Museum Berlin-Dahlem
3. BOL Bolus Herbarium, Botany Department, University of Cape Town
4. BM British Museum (Natural History)
5. BR Herbarium, Nationale Plantentuin van Belgie, Jardin Botanique Nationale de Belgique
6. C Botanical Museum, University of Copenhaguen
7. COI Herbarium, Botanical Institute, University of Coimbra
8. EA Herbarium, National Museums of Kenya
9. FT Erbario Tropicale di Firenze
10. G Herbarium, Conservatoire et Jardin Botaniques de la Ville de Geneve
11. GENT Herbarium, Laboratory of Plant Sustematics, State University of Gent
12. K Herbarium, Royal Botanic Gardens, Kew
13. L Riijkscherbarium
14. LISC Herbário, Centro de Botanica, Instituto de Investigacao Cientificas Tropical
15. LISU Herbário, Instituto Botanica, Faculdade de Ciencias
16. MAL National Herbarium and Botanic Gardens of Malawi
17. MO Herbarium, Missouri Botanical Garden
18. MOG National Herbarium, National Range Agency
19. NBG Compton Herbarium, National Botanic Gardens of South Africa
20. NH Natal Herbarium, Botanical Research Unit
21. P Herbier, Laboratoire de Phanérogamie, Muséum National d’Histoire Naturelle
22. PRE National Herbarium, Botanic Research Institute, South Africa
23. PRU Herbarium, Agriculture Department, South Africa
24. SAM South African Museum Herbarium
25. SRGH National Herbarium and Botanic Garden, Zimbabwe
26. TAN Herbier, Département Botanique, Madagascar
27. UPS Botanical Museum (Fytoteket), Uppsala University
28. W Department of Botany, Naturhistorisches Musem Wein, Austria
29. WAG Herbarium Vadense, Department of Plant Taxonomy, Wageningen
30. WU Herbarium, Institut fuer Botanik, Universitaet Wien, Austria
31. BR Jardin Botanique Nationale de Belgique
32. CIAT Centro Internacional de Agricultura Tropical
33. IITA International Institute of Tropical Agriculture
34. ILRI International Livestock Research Institute

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