Table 2.

Pulse crops and data used in the seed size comparison

Common name	Centre of domestication	Domesticated landrace	Wild relative(s)	Literature sources
Chickpea	Western Asia	Cicer arietinum L.	Cicer reticulatum Ladiz.	(Zohary et al. 2012)
Common Bean	Mesoamerica	Phaseolus vulgaris L.	Phaseolus vulgaris var. aborigineus (Burkart) Baudet	(Gepts and Debouck 1991)
Cowpea	Sub‐Saharan Africa	Vigna unguiculata (L.) Walp.	Vigna unguiculata subsp. dekindtiana (Harms) Verdc.	(Lush and Evans 1981)
Lentil	Western Asia	Lens culinaris Medik.	Lens culinaris subsp. orientalis (Boiss.) Ponert	(Zohary et al. 2012)
Lima Bean	Mesoamerica	Phaseolus lunatus L.	Phaseolus lunatus L.	(Serrano‐Serrano et al. 2012)
Mung Bean	India	Vigna radiata (L.) R. Wilczek	Vigna radiata var. sublobata (Roxb.) Verdc.	(Fuller 2007; Kang et al. 2014)
Pea	Western Asia	Pisum sativum L.	Pisum sativum L. (including subsp. elatius (M.Bieb.) Asch. & Graebn.)	(Zohary et al. 2012)
Peanut	South America	Arachis hypogaea L.	Arachis monticola Krapov. & Rigoni	(Grabiele et al. 2012)
Soybean	China	Glycine max (L.) Merr.	Glycine max subsp. soja (Siebold & Zucc.) H. Ohashi	(Kim et al. 2010)

All are annual legume (Fabaceae) species exploited for their seeds (pulses). For each species, we list its geographical center of domestication, Linnaean names of the domesticated landrace and its wild relative(s), literature sources to support the choice of wild relative(s) in each case, and use the taxonomy of ILDIS (2005). All data and materials were sourced from the USDA GRIN/NPGS database (GRIN) or the Australian Plant Genetic Resources Information System (AusPGRIS) (Mung Bean only).