Production of Haploid & Use of Doubled Haploids in Wheat Breeding

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Summaryof Wheat x Maize System• Superior to other systems in wheat• Potential to improve this technique for practicaluse in breeding programs• Desirable method to generate genetic and mappingpopulations• Economical application for special targeted traits• Some drawbacks need to be improved
Some Drawbackswith Doubled Haploid Production• GENERAL:– more expensive: expertise, facilities– restriction on number of crosses• SPECIFIC:– mutagenic treatment– genotype dependent in anther culture or microsporeculture and bulbosum method– need improvement of haploid regeneration frequency
Page 4 and 5: Breeding Using Doubled Haploid Syst
Page 6: Backcrossing or Pyramiding• Paren
Page 10 and 11: Application of Doubled HaploidGenet
Page 12 and 13: Methodologies for inducing haploid
Page 14 and 15: Barley x H. Bulbosum• Conventiona
Page 16 and 17: Proceduresof Wheat x Maize Hybridiz
Page 18 and 19: Pollination• Fresh pollen• Poll
Page 20 and 21: Embryo Culture• Excise embryos fr
Page 22 and 23: Doubled Haploid Production• Colch
Page 24 and 25: Colchicine Treatment• Colchicine
Page 26 and 27: Colchicine Treatment• Colchicine
Page 28 and 29: After Colchicine Treatment
Page 30 and 31: Factors?• Pre-hybridization• Ge
Page 32 and 33: Table1. Haploid production by wheat
Page 34 and 35: Haploid Productionin Twelve Wheat F
Page 36 and 37: Efficiency of Haploid Production•
Page 38 and 39: Increase the Efficacyof Wheat x Mai

Production of Haploid & Use of Doubled Haploids in Wheat Breeding

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