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Table 3 Maize populations in Mangae, Morogoro, surveyed by SNP analysis

From: Modern maize varieties going local in the semi-arid zone in Tanzania

Seed lot name Source Characteristic/color Number of plants (in final analysis) Number of polymorphic loci HO HE
Staha breeder’s seed ARI Ilonga White Flint-Dent 8(8) 95 0.298 0.371
Staha basic seed* ASA seed farm White Flint-Dent 8(8) 79 0.314 0.344
Staha commercial Seed shop White Flint-Dent 8(7) 100 0.309 0.383
Staha local 1 Farmer in Mangae White Flint-Dent 8(7) 99 0.298 0.343
Staha local 2 Farmer in Mangae White Flint-Dent 8(7) 80 0.365 0.373
Staha recycled Farmer in Mangae White-Purple 8(8) 77 0.436 0.396
TMV1 breeder’s seed ARI Ilonga White Flint 8(7) 88 0.307 0.377
TMV1 basic seed ASA seed farm White Flint 8(5) 74 0.401 0.402
TMV1 commercial Seed shop White Flint 8(3) 66 0.318 0.489
TMV1 local Farmer in Mangae White Flint 8(8) 77 0.339 0.378
Local variety 1 Farmer in Mangae Red 8(6) 88 0.344 0.371
Local variety 2 Farmer in Mangae Brown-White 8(6) 47 0.317 0.411
  1. Observed heterozygosity (HO) and expected heterozygosity (gene diversity) (HE) calculated according to Nei (1987) [34].
  2. *The term “Basic” used by the Organization for Economic Cooperation (OECD) is here used instead of the term “Foundation” seeds from the Association of Official Seed Certifying Agency (AOSCA), but the terms are used interchangeably in Tanzania.