Species | Zea mays subsp. mays (Maize) [ GR_tax:014546 ] | ||||
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Accession | GR:0200254 | ||||
Gene Symbol | hm1 | ||||
Gene Name | Helminthosporium carbonum susceptibility1 | ||||
Synonyms (3) |
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E.C. Numbers (0) | |||||
Pathway Reactions (0) | |||||
Chromosome No. | 1 | ||||
Gene Type | Not classified | ||||
Has Phenotype | not curated | ||||
Description | Disease lesions vs. yellowish flecks (Hm1, resistant) on leaves with Cochliobolus carbonum race 1. Dominant Hm1, resistance (yellow flecks) to Cochliobolus carbonum (=Bipolaris zeicola; Helminthosporium carbonum) race 1. In hm1/hm1 plants, severity of disease lesions is determined by the allelic state at the hm2 locus, but Hm1 alleles are epistatic to hm2 (Nelson and Ullstrip 1964 J Hered 55:194). There are also alleles (hm1-A and hm1-B) conditioning intermediate degrees of resistance in plants that are also hm2/hm2. (O. Nelson) Hm1 encodes for NADPH-dependent reductase whose function is to reduce (detoxify) the HC-toxin that the fungus produces to cause disease in susceptible maize. The locus has been cloned from B73 (Johal and Briggs 1992 Sci 258:985). This gene was originally curated in MaizeGDB Database and the map position was displayed on the maize bins map if feasible. |
Map Type | Map Set | Name | Map | Position | Ext. Links | |||
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Bin | Bins | BNL6.32 | 1 | 112.9-142.8bins | View Comparative Map | |||
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Genetic | IBM2 Neighbors 2008 | BNL6.32 | 1 | 607.09-607.09cM | View Comparative Map | |||
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QTL | Maize Bins QTL 2005 | BNL6.32 | 1 | 112.9-142.8cM | View Comparative Map | |||
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Map Position [ View in Marker DB ] | |||||
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# | Map Set Name | Linkage Group | Start Position | Stop Position | CMap Feature Acc |
1 | Bins | 1 | 112.9 cM | 142.8 cM | maize-bins-ip-267 |
2 | Maize Bins QTL 2005 | 1 | 112.9 cM | 142.8 cM | maize-bins-qtl-ip-267 |
3 | IBM2 2005 Neighbors | 1 | 607.32 cM | 607.32 cM | ibm2-2005-1-3002 |