Appendix 1.

Information on samples of Parkia biglobosa used in this study.

Voucher specimen accession no.a	Collection localityb	Geographic coordinates	No. of individuals in the herbarium	No. of individuals used for development of primers	No. of individuals used for testing primers for polymorphism	No. of individuals used for characterizing the primers
Pbg-001-MO	Tiba, Zitenga, Oubritenga	12°42′26.26″N, 1°18′2.04″W	3	3	11	40
Pbg-002-MO	Loumbila, Loumbila, Oubritenga	12°28′54.17″N, 1°24′28.97″W	1	1	2	0
Pbg-003-MO	Boulbi, Komsilga, Kadiogo	12°13′38.71″N, 1°31′59.53″W	3	1	2	0
Pbg-004-MO	Pinyiri, Pô, Nahouri	11°14′34.89″N, 1°8′1.73″W	2	5	15	40

Note: MO = Moussa Ouédraogo, collector.

^aVouchers are deposited in the Herbarium at the Centre National de Semences Forestières, Route de Kaya, 01 BP 2682 Ouagadougou, Burkina Faso.

^bVillage, department, and province in Burkina Faso.