Table S1: Liste of accessions used for phenetic analysis in C. mucosospermus, C. lanatus, C. amarus, and C. colocynthis. More information on accessions available on http://www.ars-grin.gov/npgs/acc/acc_queries.html (USDA) and http://gbis.ipk-gatersleben.de (IPK-Gaterleben)

No. / Accession code / Scientific name / Country of origin / Herbarium specimen repository
1 / CIT 204 / Citrullus amarus / Congo / GAT
2 / PI 525083 / Citrullus amarus / Egypt / USDA
3 / PI 179881 / Citrullus amarus / India / USDA
4 / NAM 943 / Citrullus amarus / Namibia / USDA
5 / CIT 138 / Citrullus amarus / Russia / GAT
6 / CIT 139 / Citrullus amarus / Russia / GAT
7 / CIT 058 / Citrullus amarus / Russia / GAT
8 / GRIF 15896 / Citrullus amarus / Russia / USDA
9 / GRIF 15897 / Citrullus amarus / Russia / USDA
10 / PI 244019 / Citrullus amarus / South Africa / USDA
11 / PI 270562 / Citrullus amarus / South Africa / USDA
12 / PI 270563 / Citrullus amarus / South Africa / USDA
13 / PI 271769 / Citrullus amarus / South Africa / USDA
14 / PI 271779 / Citrullus amarus / South Africa / USDA
15 / PI 299378 / Citrullus amarus / South Africa / USDA
16 / PI 299379 / Citrullus amarus / South Africa / USDA
17 / PI 596653 / Citrullus amarus / South Africa / USDA
18 / PI 596656 / Citrullus amarus / South Africa / USDA
19 / PI 596659 / Citrullus amarus / South Africa / USDA
20 / PI 596662 / Citrullus amarus / South Africa / USDA
21 / PI 596665 / Citrullus amarus / South Africa / USDA
22 / PI 596666 / Citrullus amarus / South Africa / USDA
23 / PI 596667 / Citrullus amarus / South Africa / USDA
24 / PI 596668 / Citrullus amarus / South Africa / USDA
25 / PI 596669 / Citrullus amarus / South Africa / USDA
26 / PI 596670 / Citrullus amarus / South Africa / USDA
27 / PI 596671 / Citrullus amarus / South Africa / USDA
28 / PI 596675 / Citrullus amarus / South Africa / USDA
29 / PI 596676 / Citrullus amarus / South Africa / USDA
30 / PI 596677 / Citrullus amarus / South Africa / USDA
31 / PI 596691 / Citrullus amarus / South Africa / USDA
32 / PI 596696 / Citrullus amarus / South Africa / USDA
33 / PI 255137 / Citrullus amarus / South Africa / USDA
34 / CIT 011 / Citrullus amarus / Switzerland / GAT
35 / CIT 079 / Citrullus amarus / Unknown / GAT
36 / CIT 084 / Citrullus amarus / Unknown / GAT
37 / CIT 094 / Citrullus amarus / Unknown / GAT
38 / CIT 313 / Citrullus amarus / Yemen / GAT
39 / PI 189225 / Citrullus amarus / Zaïre (RDC) / USDA
40 / PI 225201 / Citrullus amarus / Zimbabwe / USDA
41 / PI 482252 / Citrullus amarus / Zimbabwe / USDA
42 / CIT 101 / Citrullus amarus / Russia / GAT
43 / CIT 150 / Citrullus colocynthis / Canary Islands / GAT
44 / PI 432337 / Citrullus colocynthis / Chypre / USDA
45 / PI 525082 / Citrullus colocynthis / Egypt / USDA
46 / PI 195927 / Citrullus colocynthis / Ethiopia / USDA
47 / CIT 192 / Citrullus colocynthis / India / GAT
48 / GRIF 14201 / Citrullus colocynthis / India / USDA
49 / PI 386015 / Citrullus colocynthis / Iran / USDA
50 / PI 386024 / Citrullus colocynthis / Iran / USDA
51 / PI 386026 / Citrullus colocynthis / Iran / USDA
52 / PI 388770 / Citrullus colocynthis / Morocco / USDA
53 / PI 537277 / Citrullus colocynthis / Pakistan / USDA
54 / CIT 307 / Citrullus colocynthis / South Africa / USDA
55 / CIT 091 / Citrullus colocynthis / Unknown / USDA
56 / CIT 092 / Citrullus colocynthis / Unknown / USDA
57 / 06NIA103 / Citrullus lanatus Neri-type / Ghana / GAT
58 / 06NIA111 / Citrullus lanatus Neri-type / Ghana / GAT
59 / 06NIA095 / Citrullus lanatus Neri-type / Ghana / GAT
60 / GRIF 12335 / Citrullus lanatus subsp. lanatus / China / USDA
61 / GRIF 12336 / Citrullus lanatus subsp. lanatus / China / USDA
62 / GRIF 17300 / Citrullus lanatus subsp. lanatus / China / USDA
63 / GRIF 17310 / Citrullus lanatus subsp. lanatus / China / USDA
64 / GRIF 17330 / Citrullus lanatus subsp. lanatus / China / USDA
65 / GRIF 17340 / Citrullus lanatus subsp. lanatus / China / USDA
66 / PI 192937 / Citrullus lanatus subsp. lanatus / China / USDA
67 / PI 270550 / Citrullus lanatus subsp. lanatus / Ghana / USDA
68 / PI 185636 / Citrullus lanatus subsp. lanatus / Ghana / USDA
69 / GRIF 14199 / Citrullus lanatus subsp. lanatus / India / USDA
70 / GRIF 55950 / Citrullus lanatus subsp. lanatus / India / USDA
71 / GRIF 55960 / Citrullus lanatus subsp. lanatus / India / USDA
72 / GRIF 55970 / Citrullus lanatus subsp. lanatus / India / USDA
73 / GRIF 55980 / Citrullus lanatus subsp. lanatus / India / USDA
74 / GRIF 55990 / Citrullus lanatus subsp. lanatus / India / USDA
75 / GRIF 56000 / Citrullus lanatus subsp. lanatus / India / USDA
76 / PI 165451 / Citrullus lanatus subsp. lanatus / Mexique / USDA
77 / NAM 47 / Citrullus lanatus subsp. lanatus / Namibia / USDA
78 / PI 248774 / Citrullus lanatus subsp. lanatus / Namibia / USDA
79 / PI 249010 / Citrullus lanatus subsp. lanatus / Nigeria / USDA
80 / PI 189316 / Citrullus lanatus subsp. lanatus / Nigeria / USDA
81 / PI 189317 / Citrullus lanatus subsp. lanatus / Nigeria / USDA
82 / CIT 153 / Citrullus lanatus subsp. lanatus / South Africa / GAT
83 / CIT 309 / Citrullus lanatus subsp. lanatus / South Africa / GAT
84 / PI 271778 / Citrullus lanatus subsp. lanatus / South Africa / USDA
85 / CIT 121 / Citrullus lanatus subsp. lanatus / Unknown / GAT
86 / PI 203551 / Citrullus lanatus subsp. lanatus / USA / USDA
87 / PI 248178 / Citrullus lanatus subsp. lanatus / Zaïre (RDC) / USDA
88 / CIT 108 / Citrullus lanatus subsp. vulgaris / Armenia / GAT
89 / CIT 111 / Citrullus lanatus subsp. vulgaris / Armenia / GAT
90 / 06NIA567 / Citrullus lanatus subsp. vulgaris / Benin / GAT
91 / CIT 136 / Citrullus lanatus subsp. vulgaris / Bulgaria / GAT
92 / CIT 142 / Citrullus lanatus subsp. vulgaris / Bulgaria / GAT
93 / CIT 060 / Citrullus lanatus subsp. vulgaris / Croatia / GAT
94 / CIT 156 / Citrullus lanatus subsp. vulgaris / Georgia / GAT
95 / CIT 173 / Citrullus lanatus subsp. vulgaris / Georgia / GAT
96 / 07NIA995 / Citrullus lanatus subsp. vulgaris / Ghana / GAT
97 / CIT 054 / Citrullus lanatus subsp. vulgaris / Greece / GAT
98 / CIT 086 / Citrullus lanatus subsp. vulgaris / Greece / GAT
99 / CIT 008 / Citrullus lanatus subsp. vulgaris / Greece / GAT
100 / CIT 096 / Citrullus lanatus subsp. vulgaris / Hungary / GAT
101 / CIT 097 / Citrullus lanatus subsp. vulgaris / Hungary / GAT
102 / CIT 230 / Citrullus lanatus subsp. vulgaris / Israël / USDA
103 / CIT 065 / Citrullus lanatus subsp. vulgaris / Italia / GAT
104 / CIT 066 / Citrullus lanatus subsp. vulgaris / Italia / GAT
105 / CIT 067 / Citrullus lanatus subsp. vulgaris / Italia / GAT
106 / CIT 068 / Citrullus lanatus subsp. vulgaris / Italia / GAT
107 / CIT 069 / Citrullus lanatus subsp. vulgaris / Italia / GAT
108 / CIT 070 / Citrullus lanatus subsp. vulgaris / Italia / GAT
109 / 06NIA224 / Citrullus lanatus subsp. vulgaris / Mali / GAT
110 / 1005SE032 / Citrullus lanatus subsp. vulgaris / Mali / GAT
111 / CIT 128 / Citrullus lanatus subsp. vulgaris / Mongolia / GAT
112 / CIT 182 / Citrullus lanatus subsp. vulgaris / Mongolia / GAT
113 / CIT 306 / Citrullus lanatus subsp. vulgaris / Portugal / GAT
114 / CIT 315 / Citrullus lanatus subsp. vulgaris / Portugal / GAT
115 / Cit 110 / Citrullus lanatus subsp. vulgaris / Russia / GAT
116 / CIT 133 / Citrullus lanatus subsp. vulgaris / Russia / GAT
117 / CIT 134 / Citrullus lanatus subsp. vulgaris / Russia / GAT
118 / CIT 232 / Citrullus lanatus subsp. vulgaris / Russia / GAT
119 / CIT 308 / Citrullus lanatus subsp. vulgaris / South Africa / GAT
120 / CIT 202 / Citrullus lanatus subsp. vulgaris / Tadjikistan / USDA
121 / CIT 112 / Citrullus lanatus subsp. vulgaris / Ukraine / GAT
122 / CIT 053 / Citrullus lanatus subsp. vulgaris / Ukraine / GAT
123 / CIT 125 / Citrullus lanatus subsp. vulgaris / Unknown / GAT
124 / CIT 163 / Citrullus lanatus subsp. vulgaris / Unknown / GAT
125 / CIT 169 / Citrullus lanatus subsp. vulgaris / Unknown / GAT
126 / CIT 185 / Citrullus lanatus subsp. vulgaris / Unknown / GAT
127 / CIT 334 / Citrullus lanatus subsp. vulgaris / Unknown / GAT
128 / CIT 038 / Citrullus lanatus subsp. vulgaris / Unknown / GAT
129 / CIT 046 / Citrullus lanatus subsp. vulgaris / Unknown / GAT
130 / CIT 074 / Citrullus lanatus subsp. vulgaris / Unknown / GAT
131 / CIT 075 / Citrullus lanatus subsp. vulgaris / Unknown / GAT
132 / CIT 078 / Citrullus lanatus subsp. vulgaris / Unknown / GAT
133 / CIT 220 / Citrullus lanatus subsp. vulgaris / USA / GAT
134 / CIT 221 / Citrullus lanatus subsp. vulgaris / USA / GAT
135 / CIT 233 / Citrullus lanatus subsp. vulgaris / USA / GAT
136 / CIT 240 / Citrullus lanatus subsp. vulgaris / USA / GAT
137 / CIT 243 / Citrullus lanatus subsp. vulgaris / USA / GAT
138 / CIT 254 / Citrullus lanatus subsp. vulgaris / USA / GAT
139 / CIT 256 / Citrullus lanatus subsp. vulgaris / USA / GAT
140 / CIT 035 / Citrullus lanatus subsp. vulgaris / USA / GAT
141 / CIT 250 / Citrullus lanatus subsp. vulgaris / USA / GAT
142 / CIT 241 / Citrullus lanatus subsp. vulgaris / USA / GAT
143 / CIT 314 / Citrullus lanatus subsp. vulgaris / Yemen / GAT
144 / CIT 043 / Citrullus lanatus subsp. vulgaris / Yugoslavia / GAT
145 / CIT 044 / Citrullus lanatus subsp. vulgaris / Yugoslavia / GAT
146 / 1033SN022 / Citrullus mucosospermus / Benin / GAT
147 / 1068SN045 / Citrullus mucosospermus / Benin / GAT
148 / 1053SN035 / Citrullus mucosospermus / Benin / GAT
149 / 804AA501 / Citrullus mucosospermus / Benin / GAT
150 / 808AA508 / Citrullus mucosospermus / Benin / GAT
151 / 809AA603 / Citrullus mucosospermus / Benin / GAT
152 / 811AA607 / Citrullus mucosospermus / Benin / GAT
153 / 812AA608 / Citrullus mucosospermus / Benin / GAT
154 / 849BSN001 / Citrullus mucosospermus / Benin / GAT
155 / 850BSN001 / Citrullus mucosospermus / Benin / GAT
156 / 975MAT007 / Citrullus mucosospermus / Benin / GAT
157 / 976MAT007 / Citrullus mucosospermus / Benin / GAT
158 / 977MAT008 / Citrullus mucosospermus / Benin / GAT
159 / 979OAF006 / Citrullus mucosospermus / Benin / GAT
160 / PI 185635 / Citrullus mucosospermus / Ghana / USDA
161 / PI 186975 / Citrullus mucosospermus / Ghana / USDA
162 / PI 494527 / Citrullus mucosospermus / Nigeria / USDA
163 / PI 559992 / Citrullus mucosospermus / Nigeria / USDA
164 / PI 559993 / Citrullus mucosospermus / Nigeria / USDA
165 / PI 559994 / Citrullus mucosospermus / Nigeria / USDA
166 / PI 559995 / Citrullus mucosospermus / Nigeria / USDA
167 / PI 559996 / Citrullus mucosospermus / Nigeria / USDA
168 / PI 559997 / Citrullus mucosospermus / Nigeria / USDA
169 / PI 559999 / Citrullus mucosospermus / Nigeria / USDA
170 / PI 560000 / Citrullus mucosospermus / Nigeria / USDA
171 / PI 560001 / Citrullus mucosospermus / Nigeria / USDA
172 / PI 560002 / Citrullus mucosospermus / Nigeria / USDA
173 / PI 560003 / Citrullus mucosospermus / Nigeria / USDA
174 / PI 560004 / Citrullus mucosospermus / Nigeria / USDA
175 / PI 560005 / Citrullus mucosospermus / Nigeria / USDA
176 / PI 560006 / Citrullus mucosospermus / Nigeria / USDA
177 / PI 560007 / Citrullus mucosospermus / Nigeria / USDA
178 / PI 560008 / Citrullus mucosospermus / Nigeria / USDA
179 / PI 560009 / Citrullus mucosospermus / Nigeria / USDA
180 / PI 560010 / Citrullus mucosospermus / Nigeria / USDA
181 / PI 560011 / Citrullus mucosospermus / Nigeria / USDA
182 / PI 560012 / Citrullus mucosospermus / Nigeria / USDA
183 / PI 560013 / Citrullus mucosospermus / Nigeria / USDA
184 / PI 560014 / Citrullus mucosospermus / Nigeria / USDA
185 / PI 560015 / Citrullus mucosospermus / Nigeria / USDA
186 / PI 560016 / Citrullus mucosospermus / Nigeria / USDA
187 / PI 560017 / Citrullus mucosospermus / Nigeria / USDA
188 / PI 560018 / Citrullus mucosospermus / Nigeria / USDA
189 / PI 560019 / Citrullus mucosospermus / Nigeria / USDA
190 / PI 560020 / Citrullus mucosospermus / Nigeria / USDA
191 / PI 560023 / Citrullus mucosospermus / Nigeria / USDA
192 / PI 560024 / Citrullus mucosospermus / Nigeria / USDA
193 / CIT 280 / Citrullus sp. / Brasil / GAT
194 / CIT 271 / Citrullus sp. / Canada / GAT
195 / GRIF 15895 / Citrullus sp. / Canada / USDA
196 / CIT 206 / Citrullus sp. / China / USDA
197 / CIT 195 / Citrullus sp. / Georgia / USDA
198 / CIT 267 / Citrullus sp. / Japan / GAT
199 / CIT 274 / Citrullus sp. / Japan / GAT
200 / CIT 323 / Citrullus sp. / Japan / GAT
201 / CIT 265 / Citrullus sp. / Mexico / GAT
202 / CIT 320 / Citrullus sp. / Unknown / GAT
203 / CIT 321 / Citrullus sp. / Unknown / GAT
204 / CIT 322 / Citrullus sp. / Unknown / GAT
205 / CIT 226 / Citrullus sp. / USA / USDA
206 / CIT 258 / Citrullus sp. / USA / GAT
207 / CIT 259 / Citrullus sp. / USA / GAT
208 / CIT 275 / Citrullus sp. / USA / GAT
209 / CIT 278 / Citrullus sp. / USA / GAT
210 / GRIF 15898 / Citrullus sp. / USA / USDA
211 / CIT 327 / Citrullus sp. / USA / GAT
212 / CIT 328 / Citrullus sp. / USA / GAT
213 / CIT 329 / Citrullus sp. / USA / GAT