Additional file 1: Table S1. The 162 accessions of Daucus, and two accessions of related genera characterized in this study, improvement status, locality information and new identification. Taxon and 2n Improvement Geographic Accessionsa Chromosome Location or Sourcec New Identification Status Region Numberb Daucus aureus PI 319403 Wild Desf. (22) + Israel. Mediterranean Region. D. carota L. Ames 25731 (18, all Wild Syria. Al-Qastal: 30 km D. guttatus subspecies) + northeast of Al Ladhiqiyah. Syria. Al-Qastal: 30 km Ames 25732 D. carota + Wild D. guttatus northeast of Al Ladhiqiyah. Middle Ames 25771 D. carota Wild D. carota subsp. carota Syria. Kfarya: Near Salma. East Ames 25778 D. carota + Wild D. guttatus Syria. Kasab. Iberian Ames 26404 D. carota Wild Portugal. Evora: Near Portel. D. carota subsp. maximus Peninsula Portugal. Beja: Near Iberian Ames 26405 D. carota Wild D. carota subsp. maximus Baleizão. Peninsula Iberian Ames 26406 D. carota Wild Portugal. Beja: Near Ourique. D. carota subsp. maximus Peninsula Iberian Ames 26409 D. carota Wild Portugal. Faro: Near Salema. D. carota subsp. maximus Peninsula Uzbekistan. On main road from Central Ames 27396 D. carota Wild D. carota subsp. carota Village of Sijjak. Asia Ames 27400 D. carota Cultivated Uzbekistan. Tashkent. Eastern D. carota subsp. sativus Central Ames 27411 D. carota Wild D. carota subsp. carota Uzbekistan. Asia Central Ames 27413 D. carota Wild D. carota subsp. carota Uzbekistan. Chetsuv Village. Asia Central Ames 27414 D. carota Wild Uzbekistan. Chetsuv Village. D. carota subsp. carota Asia Uzbekistan. Chetsuv Village: Central Ames 27415 D. carota Wild Approximately 50 meters from D. carota subsp. carota Asia Z10. Ames 29084 D. carota Landrace Tunisia. D. carota subsp. sativus Tunisia. Nabuel: along Route North Ames 30250 D. carota Wild 28 at junction of road to D. carota subsp. carota Africa Takelsa. Tunisia. Nabuel: Sidi Daoud, North Ames 30252 D. carota Wild D. carota subsp. carota 1 km from Route 27. Africa Tunisia. Bizerte: along Route North Ames 30260 D. carota Wild D. carota subsp. carota 51, west of Ghzab. Africa Tunisia. Bizerte: grounds of North Ames 30261 D. carota Wild Direction Regionale Mogods, D. carota subsp. carota Africa Khroumerie Sejnane. Morocco. Sefrou: Along Route Ames 31548 D. carota Wild N8, 24 miles north of Azrou, Morocco D. carota subsp. maximus Oulad Mkoudou Region. Morocco. Fes: Along Route N6 (road to Taza from Fes), just Ames 31553 D. carota Wild Morocco D. carota subsp. maximus east of deviation with Route N8, Sidi Harazem. Morocco. Fes: Along Route N6 (road to Taza), 13 kilometers from deviation with Route N8, Ames 31554 D. carota Wild Morocco D. carota subsp. maximus 28 kilometers east of downtown Fes, Sidi Harazem Region. Morocco. Sefrou: Along Route N6, 28 kilometers from Ames 31555 D. carota Wild deviation with Route N8, 58 Morocco D. carota subsp. maximus kilometers east of downtown Fes, Bir Tam Tam Region. Morocco. Sefrou: Along Route R503, south side of Fes, 6 Ames 31558 D. carota Wild Morocco D. carota subsp. maximus kilometers north of Sefrou, Aghbalou Aqorar Region. Morocco. Meknes: Along Route N4, 36 kilometers west of Ames 31559 D. carota Wild Morocco D. carota subsp. maximus Fes, east of Sidi Kacem, Mhaya Region. Morocco. Sidi Kacem: Along Route 410, 4 kilometers south Ames 31562 D. carota Wild Morocco D. carota subsp. maximus of Mechra Belqsiri, Sefsaf Region. Morocco. Larache: approximately 10 kilometers Ames 31570 D. carota Wild Morocco D. carota subsp. maximus south of Larache, Laouamra Region. Morocco. Nador: Along Route N16, 41 kilometers west of Ames 31580 D. carota Wild Morocco D. carota subsp. gummifer Nador, approximately 0.5 kilometer from Mediterranean Sea, Amejjaou Region. Morocco. Berkane: Along Route S403, approximately 5 Ames 31584 D. carota Wild kilometers northwest of road Morocco D. carota subsp. maximus to Sidi Bouhria, Rislane Region. Morocco. Safi: 11 kilometers Ames 31592 D. carota Wild east of Safi on Route 204, Morocco D. carota subsp. maximus Khatazakane Region. PI 163234 D. carota Cultivated India. Madhya Pradesh. Eastern D. carota subsp. sativus PI 163235 D. carota Cultivated Pakistan. Punjab. Eastern D. carota subsp. sativus PI 176563 D. carota Cultivated Turkey. Kutahya. Eastern D. carota subsp. sativus PI 187235 D. carota Cultivated Belgium. Western D. carota subsp. sativus PI 222249 D. carota Cultivated Iran. Tehran. Eastern D. carota subsp. sativus PI 249535 D. carota Cultivated Spain. Western D. carota subsp. sativus PI 256066 D. carota Cultivated Afghanistan. Kabul. Eastern D. carota subsp. sativus PI 264235 D. carota Cultivated France. Western D. carota subsp. sativus PI 264236 D. carota Cultivated France. Western D. carota subsp. sativus PI 264543 D. carota Cultivated Japan. Osaka. Eastern D. carota subsp. sativus PI 268382 D. carota Cultivated Afghanistan. Kabul. Eastern D. carota subsp. sativus PI 269319 D. carota Cultivated Sweden. Western D. carota subsp. sativus PI 271348 D. carota Cultivated India. Delhi. Eastern D. carota subsp. sativus Spain. Madrid (Botanic PI 279759 D. carota Landrace D. carota subsp. sativus Garden). PI 279762 D. carota Landrace D. carota subsp. sativus Denmark. Copenhagen. Spain. Madrid (Botanic PI 279798 D. carota Landrace D. carota subsp. sativus Garden). South D. carota Wild D. carota subsp. maximus PI 280706 Chile. Concepcion. America PI 341204 D. carota Cultivated France. Western D. carota subsp. sativus PI 502914 D. carota Cultivated Germany. Western D. carota subsp. sativus PI 634651 D. carota Cultivated USA. Minnesota. Western D. carota subsp. sativus PI 643114 D. carota Cultivated USA. California. Western D. carota subsp. sativus Portugal. Vila Real: S. Joao Iberian PI 652222 D. carota Wild da Pesqueira, Tras-os-Montes D. carota subsp. carota Peninsula (Alto Douro) Province. Bulgaria. Lovech: Balkan Balkan D. carota Wild D. carota subsp. carota PI 652237 Mountains. Peninsula PI 652257 D. carota Cultivated India. Delhi. Eastern D. carota subsp. sativus Greece. Ionian Islands: Balkan PI 652301 D. carota Wild D. carota subsp. carota Englouvi. Peninsula PI 652335 D. carota Cultivated Syria. Damascus. Eastern D. carota subsp. sativus PI 652336 D. carota Cultivated Syria. Damascus. Eastern D. carota subsp. sativus Middle PI 652337 D. carota Wild D. carota subsp. carota Syria. Sweida. East Middle PI 652338 D. carota Wild D. carota subsp. carota Syria. Sweida. East Middle PI 652348 D. carota Wild Turkey. Izmir: West of Izmir. D. carota subsp. carota East USA. Washington: South side of Route 507 (old Highway North PI 661219 D. carota Wild 99), just southwest of Tenino D. carota subsp. carota America Avenue junction with Mina Acres Drive, Thurston County USA. California: Crescent North PI 661231 D. carota Wild D. carota subsp. carota City, Del Norte County. America Iberian Ames 26395 D. carota Wild Portugal. Faro: Near Fuseta. D. carota subsp. maximus Peninsula Uzbekistan. Northeast of Central Ames 27395 D. carota Wild Gazelkent on main road to D. carota subsp. carota Asia Tashkent. Tunisia. Jendouba: Road 11 North Ames 30267 D. carota Wild between Ain Draham to Beja, D. carota subsp. carota Africa near km 47.5. Pakistan. Four miles west of Central PI 274298 D. carota Wild D. carota subsp. carota Parachinar. Asia PI 344447 D. carota Cultivated Iran. Hamadan. Eastern D. carota subsp. sativus North PI 478874 D. carota Wild Italy. Sicily: Catania. D. carota subsp. carota Africa PI 652224 D. carota Wild Poland. Lomza. Europe D. carota subsp. carota Greece. Ionian Islands: Balkan PI 652299 D. carota Wild D. carota subsp. carota Vasiliki. Peninsula Greece. Peloponnese: 10 km Balkan PI 652304 D. carota Wild south of Patrai, toward D. carota subsp. carota Peninsula Pyrgos. Greece. Peloponnese: Near Balkan PI 652306 D. carota Wild Koklas village, toward D. carota subsp. carota Peninsula Sparti, Messenia Prefecture. Middle PI 652349 D. carota Wild Turkey. Izmir: West of Izmir. D. carota subsp. carota East Middle PI 652352 D. carota Wild Turkey. Izmir: Near Bağarasi. D. carota subsp. carota East D. carota subsp. Tunisia. Medenine: Djerba North Ames 30198 capillifolius Wild Island, Boumellel, 2 km north Africa (Gilli) Arbizu of Houmt Souk. Tunisia. Medenine: Djerba D. carota subsp. North Ames 30202 Wild Island, just outside of south capillifolius Africa end of El May. Tunisia. Medenine: Road to El D. carota subsp. North Ames 30207 Wild Kantara, south of Djerba capillifolius Africa Island. D. carota subsp. North PI 279764 Wild capillifolius Libya. Near Jefren. Africa D. carota subsp. Middle Ames 25740 Wild carota Syria. As Samra. East D. carota subsp. Middle Ames 25762 Wild carota Syria. Deir Mama. East D. carota subsp. Portugal. Porto: Near Vila do Iberian Ames 26374 Wild D. carota subsp. carota carota Conde. Peninsula D. carota subsp. Portugal. Portalegre: Near Iberian Ames 26377 Wild D. carota subsp. maximus carota Monforte. Peninsula D. carota subsp. Portugal. Portalegre: Near Iberian Ames 26379 Wild D. carota subsp. carota carota Marvao. Peninsula Uzbekistan. Along main road Central Ames 27397 D. carota subsp. Wild between Yalangoch and Sobir Asia carota Raximova. D. carota subsp. Tunisia. Zaghouan: Along road North Ames 30245 Wild carota between Fahs and El Magrane. Africa Tunisia. Nabeul: Along Route D. carota subsp. North Ames 30249 Wild 26 between Saliman and Sidi carota Africa Aissa. Tunisia. Nabuel: Route 26, between Takelsa and El North Ames 30251 Wild D. carota subsp. Haouaria, 26 km from El Africa carota Haouaria. Tunisia. Beja: road from North Ames 30262 D. carota subsp. Wild Route 7, just west of Sejnane Africa carota to Cap Negro. D. carota subsp. Tunisia. Beja: Road between North Ames 30271 Wild carota Beja and Nefza. Africa D. carota subsp. Tunisia. Jendouba: South of North Ames 30272 Wild carota Hotel Tabarka beach. Africa PI 274297 Wild Central D. carota subsp. Pakistan. Northern areas. carota Asia D. carota subsp. Hungary. Pest (Botanic PI 279775 Landrace D. carota subsp. sativus carota Garden). D. carota subsp. Austria. Vienna (Museum of PI 279788 Landrace D. carota subsp. sativus carota Natural History).