Table 1.
Maize genotypes used in the study
| Genotypes | Pedigree | Adaptation |
|---|---|---|
| 178a | Selected from an introduced hybrid | Temperate |
| 18Reda | American hybrid P78599 | Temperate |
| 18Whitea | American hybrid P78599 | Temperate |
| 48-2a | Synthesized population | Temperate |
| A318 | Improved S37 | Tropical |
| B73a | BSSS | Temperate |
| Dan598a | (Dan340 × Danhuang11) × (Danhuang02 × Dan599) | Temperate |
| ES40a | Landrace Linshuidadudu selected from Sichuan | Temperate |
| Han21a | American hybrid P78599 | Temperate |
| Huangzao4a | Improved from Landrace, TangSiPingTou | Temperate |
| Lu9801 | Ye502 × H21 | Temperate |
| Mo17a | C103 × 187-2 | Temperate |
| RP125a | Derived from hybrid Chuandan9 | Temperate |
| Ye478a | U8112 × Shen5003 | Temperate |
| Zheng22a | (Duqing × E28) × Lu Jiu Kuan | Temperate |
| 81565a | (Huobai × Jin03)S2 × Heibai94 | Tropical/subtropical |
| CML411a | P28C7-S4-#-BBBBBBBBBBB | Tropical/subtropical |
| CML206 | [EV7992#/EVPO44SRBC3]#BF37SR-2-3SR-2-4-3-BB | Tropical/subtropical |
| CML85 | P34C5F21-2-#1-2-2-# | Tropical/subtropical |
| P1a | Unknown | Tropical/subtropical |
| Z. mexicanaa | Zea mays ssp. mexicana | Tropical |
| Z. parviglumis | Zea mays ssp. parviglumis | Tropical |
| Z. huehuetenangensis | Zea mays ssp. huehuetenangensis | Tropical |
| Z. nicaraguensis | Zea nicaraguensis | Tropical |
| Z. luxurians | Zea luxurians | Tropical |
| Z. perennis | Zea perennis | Tropical |
| Z. diploperennis | Zea diploperennis | Tropical |
All the materials were used for experimental validation.
aMaterials were only used for SSR identification and markers development. The chromosome number is 2n = 40 for Z. perennis and 2n = 20 for other species.