Table 3.
Summary on genes conferring resistance against maize dwarf mosaic virus (MDMV).
| Chromosome | Locus | Resistance Source | Screening Method | Level of Resistance | References |
|---|---|---|---|---|---|
| 6 (short arm) | Mdm1 | Pa405 Oh1V1 |
Mechanical inoculation/Greenhouse Mechanical inoculation/Field |
High resistance (Dominant gene) |
[140,143] |
| 6 | Mdm1 co-localizes with Wsm1 |
Wsm1 NIL (near isogenic lines) Oh28SS/RR/SS Left: Wsm2 alleles Middle: Mdm1/Wsm1 alleles Right: Wsm3 (Two Mdm1/Wsm1 allele) |
Mechanical inoculation/Greenhouse/Field condition | High resistance | [80] |
| 6 | Mdm1 co-localizes with Wsm1 |
Wsm1 × Oh28 F1 Oh28SS/RS/SS Left: Wsm2 alleles Middle: Mdm1/Wsm1 alleles Right: Wsm3 (One Mdm1/Wsm1 allele) |
Mechanical inoculation/Greenhouse/Field condition | Intermediate resistance | [80] |
| 3 & 6 | Wsm2 combine with Mdm1/Wsm1 |
Wsm1 Wsm2 NIL Oh28RR/RR/SS Left: Wsm2 alleles Middle: Mdm1/Wsm1 alleles Right: Wsm3 |
Mechanical inoculation/Greenhouse/Field condition | Lowers symptom incidence | [80,142] |
| 3 & 6 | Wsm2 combine with Mdm1/Wsm1 |
Wsm1 Wsm2 × Oh28 F1 Oh28RS/RS/SS Left: Wsm2 alleles Middle: Mdm1/Wsm1 alleles Right: Wsm3 |
Mechanical inoculation/Greenhouse/Field condition | Lowers incidence and severity of disease | [80,142] |
| 6 & 10 | Wsm3 combine with Mdm1/Wsm1 |
Wsm1 Wsm3 × Oh28 F1 Oh28SS/RS/RS Left: Wsm2 alleles Middle: Mdm1/Wsm1 alleles Right: Wsm3 |
Mechanical inoculation/Greenhouse/Field condition | Lowers disease incidence and severity | [80,141] |
| 3 & 6 | Scmv2 combined with Scmv1 | F7 RR/RR Left: Scmv2 alleles Right: Scmv1 alleles R: Susceptible parent F7 R: Resistant parent FAP1360A |
Mechanical inoculation by rubbing infected leaves | Complete resistance | [155] |