Wheat Breeding: Procedures and Strategies

Baenziger, P. Stephen; DePauw, R. M.

doi:10.1002/9780813818832.ch13

Cited by 27 publications

(22 citation statements)

References 111 publications

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“…Breeding systems are highly flexible and dependent upon resources and the target set of environments [1,2]. Potential improvements or modification are constantly evaluated.…”

Section: Achieving Synergism Between Organic and Conventional Breedinmentioning

confidence: 99%

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Structuring an Efficient Organic Wheat Breeding Program

et al. 2011

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Our long-term goal is to develop wheat cultivars that will improve the profitability and competitiveness of organic producers in Nebraska and the Northern Great Plains. Our approach is to select in early generations for highly heritable traits that are needed for both organic and conventional production (another breeding goal), followed by a targeted organic breeding effort with testing at two organic locations (each in a different ecological region) beginning with the F 6 generation. Yield analyses from replicated trials at two organic breeding sites and 7 conventional breeding sites from F 6 through F 12 nurseries revealed, using analyses of variance, biplots, and comparisons of selected lines that it is inappropriate to use data from conventional testing for making germplasm selections for organic production. Selecting and testing lines under organic production practices in different ecological regions was also needed and cultivar selections for organic production were different than those for conventional production. Modifications to this breeding protocol may include growing early generation bulks in an organic cropping system. In the future, our selection efforts should also focus on using state-of-the-art, non-transgenic breeding technologies (genomic selection, marker-assisted breeding, and high throughput phenotyping) to synergistically improve organic and conventional wheat breeding. OPEN ACCESSSustainability 2011, 3 1191

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“…Breeding systems are highly flexible and dependent upon resources and the target set of environments [1,2]. Potential improvements or modification are constantly evaluated.…”

Section: Achieving Synergism Between Organic and Conventional Breedinmentioning

confidence: 99%

“…The principle is often written as P = G + E + G × E [1,2]. The phenotype is important because that is what producers harvest.…”

Section: Introductionmentioning

confidence: 99%

Structuring an Efficient Organic Wheat Breeding Program

et al. 2011

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“…Wheat cultivar 'Sadovska ranozreika-4'was sown as a standard at regular intervals every 25 rows. Pureline selection was applied in the sense that individual plants with the desired HMW glutenin pair 4t+10.1t were selected, their progeny were evaluated and the best onethree plants in derived progeny for grain number and kernel weight per main spike were used to obtain the next generation (Baenziger, DePauw, 2009). Each family obtained from a selected plant consisted of 20 seeds, sown in two replications.…”

Section: Methodsmentioning

confidence: 99%

Transfer of novel storage proteins from a synthetic hexaploid line into bread wheat

Doneva

Daskalova

Spetsov³

2018

Zemdirbyste-Agriculture

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Pure line selection for the presence of Glu-D1-4t+10.1t in high molecular weight glutenin subunits was applied in a cross between a synthetic hexaploid wheat (SHW) 530-1 (Triticum dicoccum / Aegilops tauschii acc. 19088) (2n = 42, . Grain number and seed weight per plant of selected BC 1 F 5-7 individuals accompanied this high molecular weight subunit pair to create 9 wheat genotypes. They were tested in the field and showed sufficient germination and winter survival with high seed set. Hierarchical cluster analysis divided them in two groups (four in the first, including standard wheat cultivar 'Sadovska ranozreika-4' and six lines in the second cluster). The urea / SDS-PAGE method separated the new lines in two high molecular weight glutenin variants, Glu-A1-2*, Glu-B1-7+8, Glu-D1-4t+10.1t (8 genotypes) and Glu-A1-null, Glu-B1-7+8, Glu-D1-4t+10.1t (1 genotype), displaying equal low molecular weight glutenins. All families expressed two ω-gliadin bands: the gliadin #1 originated from SHW530-1, while #2 was transferred from wheat cultivar 'Albena'. The former one appeared to be the unique gliadin subunit in the genotypes, not expressed in both wheat parents. The incorporated high molecular weight glutenin alleles might serve as new genetic resources for improving the grain quality of modern common wheat.

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“…Recent advances in plant tissue culture and its related disciplines opened an avenue that greatly facilitated the haplodiplodization breeding scheme, which enables the extraction of instant homozygous lines/varieties from crop plants with any degree of heterogeneity in a single generation (Baenziger and DePauw, 2009;Wu et al, 2012). Haploid individuals are sporophytes with gametic chromosome number (Riley, 1974;Ouyang et al, 1973) and by doubling the haploid chromosome complements doubled haploids (DH) can instantly be produced.…”

Section: Introductionmentioning

confidence: 99%

“…Isolation of homozygous and homogeneous genotypes through conventional inbreeding methods (single seed descent, backcrossing and selfing in the field, plus in some cases, the use of offseason nurseries and shuttle breeding approaches) requires several cycles of inbreeding and selection, making it the most tedious, time consuming and expensive phase of any breeding program. Furthermore, in conventional plant breeding, truly homozygous lines are rare and most selection contains some heterozygous loci (Baenziger and Peterson, 1992;Baenziger and DePauw, 2009).…”

Section: Introductionmentioning

confidence: 99%

Recent advances and application of doubled haploids in wheat breeding

Tadesse¹,

Inagaki²,

Tawkaz³

et al. 2012

Afr. J. Biotechnol.

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Genetic improvement to develop varieties with high yield potential and resistance/tolerance to abiotic and biotic stresses with acceptable end use qualities is the most viable and environment friendly option to increase wheat yield in a sustainable fashion. In vitro haploid production followed by chromosome doubling greatly enhances the production of complete homozygous wheat lines in a single generation and increases the precision and efficiency of selection process in wheat breeding. It also enables the detection of linkage and gene interactions, estimate genetic variance and the number of genes for quantitative characteristics, produce genetic translocations, substitutions and chromosome addition lines, and facilitate genetic transformation and mutation studies. Wheat cultivars developed from doubled haploids using anther-culture and maize induction systems have been released for cultivation in both developed and developing countries. In this review, the origin and production of haploids, techniques in anther-culture and wheat x maize wide crosses, and their application in wheat breeding are summarized.

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Wheat Breeding: Procedures and Strategies

Cited by 27 publications

References 111 publications

Structuring an Efficient Organic Wheat Breeding Program

Structuring an Efficient Organic Wheat Breeding Program

Transfer of novel storage proteins from a synthetic hexaploid line into bread wheat

Recent advances and application of doubled haploids in wheat breeding

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