High priority taxa

Following taxa (27 out of 31) were found to be high priority taxa to collect:

  • S. amplum
  • S. angustum
  • S. aterrimum
  • S. brachypodum
  • S. bulbosum
  • S. ecarinatum
  • S. exstans
  • S. grande
  • S. halepense
  • S. interjectum
  • S. intrans
  • S. laxiflorum
  • S. leiocladum
  • S. macrospermum
  • S. matarankense
  • S. miliaceum
  • S. mjoebergii
  • S. nitidum
  • S. pauciflorum
  • S. plumosum
  • S. propinquum
  • S. somaliense
  • S. stipoideum
  • S. timorense
  • S. trichocladum
  • S. usorum
  • S. versicolor

See the priorities list here

Identified gaps for Sorghum genepool

(see downloads)

We found data for 29 wild species and 2 infraspecific taxa (S. bicolor subsp. drummondii, S. bicolor subsp. arundinaceum), accounting to a total of 31 taxa for analysis. We have classified Sorghum taxa using Stenhouse et al., (1997) genepool classification, which suggest the following genepools:

Primary genepool
Secondary genepool
Tertiary genepool
S. bicolor subsp. bicolor cultivars and races
S. halepense
All other sections/subgenera of Sorghum
S. bicolor subsp. arundinaceum

S. bicolor subsp. drummondii
S. propinquum

The analysis dataset (download) contained 4,337 observations, with 4,111 (95%) being herbarium specimens and 226 (5%) being genebank accessions. The average number of total samples per taxon was 140 (standard deviation of 426), indicating that available data is relatively abundant, although it is concentrated in certain taxa (i.e. S. halepense [2,399], S. plumosum [276], S. stipoideum [226], S. bicolor subsp. arundinaceum [146], S. bicolor subsp. drummondii [147]). Other taxa such as S. pauciflorum (1), S. usorum (1) and S. somaliense (2), along with others, present a very limited sampling and/or data availability and thus need further characterization and sampling for assessing a reliable ecogeographic evaluation on them.

The gap analysis of the Sorghum genepool showed that there are 27 taxa that are either underrepresented or not represented in any way in genebanks out of the 31 taxa under analysis and these taxa were therefore flagged as high priority species. 7 of these taxa presented only 10 or less data points (sum of herbarium and germplasm), which indicate that these species in particular need to be further collected (i.e. S. pauciflorum, S. usorum, S. aterrimum, S. miliaceum, S. somaliense, S. mjoebergii, S. trichocladum). There were no species flagged as very well conserved ex-situ, which indicates either genebanks are or correctly storing wild Sorghum diversity or access to their data is not available. Species S. almum and S. purpureo-sericeum appear to be relatively poorly conserved and were thus flagged as medium priority species, whilst taxa S. bicolor subsp. arundinaceum and S. bicolor subsp. drummondii appear to be the most conserved taxa among the genepool.

Potential sampling zones

GE View in Google Earth

Sorghum high priority taxa were found to be distributed in central Asia, part of Oceania, India and Africa. Zones in the figures above are those in which the species is likely to exist and no genebank accessions have been collected.

Potential sampling richness

GE View in Google Earth

The greatest sampling-richness was found in the Northern Territory of Australia.

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
Genebank accessions
Herbarium samples
Total
Sorghum amplum
0
18
18
Sorghum angustum
0
23
23
Sorghum aterrimum
0
2
2
Sorghum brachypodum
0
27
27
Sorghum bulbosum
0
48
48
Sorghum ecarinatum
0
11
11
Sorghum exstans
0
42
42
Sorghum grande
0
17
17
Sorghum halepense
6
2393
2399
Sorghum interjectum
0
45
45
Sorghum intrans
1
109
110
Sorghum laxiflorum
0
100
100
Sorghum leiocladum
0
177
177
Sorghum macrospermum
0
19
19
Sorghum matarankense
0
22
22
Sorghum miliaceum
0
2
2
Sorghum mjoebergii
0
4
4
Sorghum nitidum
0
164
164
Sorghum pauciflorum
0
1
1
Sorghum plumosum
1
275
276
Sorghum propinquum
0
24
24
Sorghum somaliense
0
2
2
Sorghum stipoideum
0
226
226
Sorghum timorense
0
173
173
Sorghum trichocladum
0
7
7
Sorghum usorum
0
1
1
Sorghum versicolor
6
6
12
Sorghum bicolor subsp. arundinaceum
75
71
146
Sorghum bicolor subsp. drummondii
113
34
147
Sorghum almum
16
63
79
Sorghum purpureosericeum
8
5
13

Species’ taxonomy was reviewed using Maxted and Kell (2009) as a first stage, the GRIN taxonomical review in second place, and the Royal Botanic Gardens, Kew taxonomy database. 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 61 different collections from which data were readily available:

  1. Árboles de la Península de Yucatán, Flora del Distrito de Tehuantepec, Oaxaca y Familia Asteraceae en México (IBUNAM)
  2. Arizona State University Vascular Plant Herbarium
  3. Australian National Herbarium (CANB)
  4. BDBCV BioBlitz in Penyagolosa (Castellon, Spain)
  5. Biodiversidad de Costa Rica
  6. Bishop Museum Natural History Specimen Data
  7. Botanical Society of the British Isles - Vascular Plants Database
  8. Bundesamt fuer Naturschutz / Netzwerk Phytodiversitaet Deutschland
  9. California State University, Chico
  10. Database Schema for UC Davis [Herbarium Labels]
  11. Direccion General de Investigacion, Desarrollo Tecnologico e Innovacion de la Junta de Extremadura(DGIDTI): HSS
  12. EURISCO, The European Genetic Resources Search Catalogue
  13. Fairchild Tropical Botanic Garden Virtual Herbarium Darwin Core format
  14. FloVegSI - Floristical and fitocenological database of ZRC SAZU
  15. Galapagos grasses and sedges
  16. Herbario de la Universidad de Sevilla, SEV-Historico
  17. Herbario del Instituto de Ecologia, A.C., México (IE-BAJIO)
  18. Herbarium (UNA)
  19. Herbarium GJO
  20. Herbarium of Oskarshamn (OHN)
  21. Herbarium Specimens of Bonin and Ryukyu Islands
  22. Herbarium Specimens of Museum of Nature and Human Activities, Hyogo Pref., Japan
  23. Herbarium Willing
  24. Herbarium WU
  25. Herbier de la Guyane
  26. Hortus Botanicus Sollerensis Herbarium (FBonaf+¿)
  27. ICRISAT SORGHUM
  28. Instituto de Ciencias Naturales
  29. IPK Genebank
  30. Israel Nature and Parks Authority
  31. Leiner-Herbar Konstanz
  32. Lund Botanical Museum (LD)
  33. MEXU/Plantas Vasculares
  34. Missouri Botanical Garden
  35. Natural History Museum Rotterdam (NMR)
  36. New Zealand National Plant Herbarium (CHR)
  37. Nordic Herbarium (S)
  38. NSW herbarium collection
  39. Observations du Conservatoire botanique national du Bassin parisien.
  40. Phanerogamie
  41. Plants (GBIF-SE:Artdatabanken)
  42. Plants of Papua New Guinea
  43. Real Jardin Botanico (Madrid), Vascular Plant Herbarium (MA)
  44. Repatriacion de datos del Herbario de Arizona (ARIZ)
  45. Specimen Database of Colorado Vascular Plants
  46. The AAU Herbarium Database
  47. The Deaver Herbarium, Northern Arizona University
  48. The System-wide Information Network for Genetic Resources (SINGER)
  49. United States National Plant Germplasm System Collection
  50. Universidad de Almeria, HUAL
  51. Universidad de Extremadura, UNEX
  52. Universidad de Malaga: MGC-Cormof
  53. University and Jepson Herbaria DiGIR provider
  54. USDA PLANTS Database
  55. USU-UTC Specimen Database
  56. Utah Valley State College Herbarium
  57. Vascular Plant Collection
  58. Vascular Plant Collection - University of Washington Herbarium (WTU)
  59. Vascular Plant Herbarium, Oslo (O)
  60. Vascular Plant Type Specimens
  61. Zoological specimens

Downloads

Climatic niche model for S. almum
Climatic niche model for S. amplum
Climatic niche model for S. angustum
Climatic niche model for S. bicolor subsp.arundinaceum
Climatic niche model for S. bicolor subsp. drummondii
Climatic niche model for S. brachypodum
Climatic niche model for S. bulbosum
Climatic niche model for S. ecarinatum
Climatic niche model for S. exstans
Climatic niche model for S. grande
Climatic niche model for S. halepense
Climatic niche model for S. interjectum
Climatic niche model for S. intrans
Climatic niche model for S. leiocladum
Climatic niche model for S. matarankense
Climatic niche model for S. nitidum
Climatic niche model for S. plumosum
Climatic niche model for S. propinquum
Climatic niche model for S. purpureosericeum
Climatic niche model for S. stipoideum
Climatic niche model for S. timorense
Sorghum potential collecting zones
Sorghum potential collecting richness
Predicted species richness under current climatic conditions
Predicted species richness under future climatic conditions
Changes on predicted species richness due to climate change
Sampling density (200km cell size) for germplasm accessions
Sampling density (200km cell size) for herbarium samples
Conservation priorities list for Sorghum genepool
Dataset used for this analysis

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