1
Figure S1
2
Geographic distribution of groups of Acacia senegal populations delineated by chloroplast microsatellite (cpDNA) SAMOVA; circle sizes
3
are proportional to the number of individuals (cf. STRUCTURE clusters, Figures S2 a and b; see also Table S5).
4
5
Figure S2
6
Genetic structure of cpSSR of 290 individuals from 39 populations. (a) Bar plot showing clustering of individuals by STRUCTURE with K
7
= 2 (Pritchard et al., 2000). Colour represents proportion of ancestry derived from each cluster; red = cluster 1 (FST = 0.188, mainly East
8
Africa), green = cluster 2 (FST = 0.283, mainly West Africa). Gray lines represent populations listed as follows: 1, Ngane; 2, Diamenar; 3,
9
Daiba; 4, Kidira; 5, Aite; 6, Kirane; 7, Djiguéni; 8, Somo; 9, Karofane; 10, Burkina Di; 11, Burkina Bissiga Fc; 12, Maroua; 13, Tourba;
10
14, Sudan RBGE specimens; 15, Fallatu; 16, Kordofan; 17, Sodera; 18, Kaleing’; 19, Kakuma; 20, Lokichar; 21, Ngurunit; 22, Merille; 23,
11
Serolipi; 24, Rimoi; 35, Kulamawe; 26 Ngarendare; 27, Marigat; 28, Koriema; 29, Ntumburi; 30, Magadi; 31, Kajiado; 32, Kibwezi; 33,
12
Kigwe; 34, Wangingombe; 35, South Africa RBGE specimens; 36, Oman (Dhofar) RBGE specimens; 37, India (Jodhpur World
13
Agroforestry Centre collection); 38, India Jodhpur Inde50; 39, India Jodhpur Inde60. (b) Bar plot showing clustering in regions and
1
14
subregions: 1, West Africa; 2, Central Africa (Cameroon and Chad); 3, Sudan; 4, East Africa; 5, South Africa; 6, Arabian Peninsula
15
(Dhofar, Oman); 7, India.
16
2