Breeding for flooding tolerant maize using "teosinte" as a germplasm resource
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概要
- 論文の詳細を見る
Flooding or waterlogging is a major factor in reducing crop yields. In order to increase crop productivity in temporarily flooded soils, development of flooding-tolerant lines is required. Three primary factors affecting flooding tolerance in plants have been reported: (1) the ability to grow adventitious roots at the soil surface during flooding; (2) the capacity to form root aeren-chyma; and (3) tolerance to toxins (e.g., Fe2+, H2S) under reducing soil conditions. By analyzing these components separately, it could be possible to perform selections for genotypes exhibiting varying degrees of flooding tolerance. In quantitative trait locus (QTL) analyses for flooding tolerance, using teosinte as a germ-plasm resource, we have identified several QTLs associated to flooding traits. Based on the DNA marker information linked to flooding tolerance-related QTLs, the potential transfer of QTLs conferring flooding tolerance from teosinte to maize and pyramiding these QTLs into selected maize lines are now possible.
- 根研究学会の論文
著者
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Mano Yoshiro
Forage Crop Breeding Res. Team National Inst. Of Livestock And Grassland Sci.
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Omori Fumie
Forage Crop Breeding Res. Team National Inst. Of Livestock And Grassland Sci.
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Mano Yoshiro
Forage Crop Breeding Research Team, National Institute of Livestock and Grassland Science
関連論文
- Identification of QTL Controlling Flooding Tolerance in Reducing Soil Conditions in Maize (Zea mays L.) Seedlings(Genetic Resources Evaluation)
- QTL Mapping of Adventitious Root Formation under Flooding Conditions in Tropical Maize (Zea mays L.) Seedlings
- Verification of QTL controlling root aerenchyma formation in a maize×teosinte "Zea nicaraguensis" advanced backcross population
- High-density linkage map around the root aerenchyma locus Qaer1.06 in the backcross populations of maize Mi29×teosinte "Zea nicaraguensis"
- Accurate evaluation and verification of varietal ranking for flooding tolerance at the seedling stage in barley (Hordeum vulgare L.)
- Breeding for flooding tolerant maize using "teosinte" as a germplasm resource
- Variation for the capacity to form root aerenchyma and selection for highly aerenchyma forming lines in the rare teosinte Zea nicaraguensis