Comparison of Polyhaploid Production Frequencies in Crosses of Hexaploid Wheat with Maize, Pearl Millet and Sorghuml.

Inagaki, M.; Mujeeb‐Kazi, A.

doi:10.1270/jsbbs1951.45.157

Cited by 43 publications

(36 citation statements)

References 20 publications

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“…During mitosis, chromosome elimination in somatic cells has been observed in many interspecific hybrids such as in crosses between Triticum aestivum L. and Zea mays L., Sorghum bicolor (L.) Moench (Inagaki and Mujeeb-Kazi, 1995), Imperata cylindrica (L.) Beauv. (Komeda et al, 2007), Hordeum vulgare L. (Barclay, 1975), Pennisetum glaucum (L.) R. Br.…”

Section: Introductionmentioning

confidence: 99%

Mitotic and meiotic behavior of rye chromosomes in wheat - Psathyrostachys huashanica amphiploid x triticale progeny

Xie

Kang²,

Sparkes³

et al. 2013

Genet. Mol. Res.

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ABSTRACT. The dynamics of rye chromosomes during mitosis and meiosis was analyzed in a subset comprising 33 F 3 lines from the cross of wheat, Psathyrostachys huashanica amphiploid (AABBDDNsNs) and hexaploid triticale (AABBRR), as visualized by genomic in situ hybridization. The results indicated that 31 of the total lines contained 4-14 rye chromosomes. Twenty-eight combinations had more rye chromosomes than the F 1 hybrids, suggesting the occurrence of spontaneous quantitative increment. No P. huashanica chromosomes were detected in all of the combinations tested. Mitotic analysis showed that rye chromosomes progressed normally with the wheat counterparts without loss. However, abnormal meiosis was found in almost all lines. Similar progression between wheat and rye genomes appeared from interphase to metaphase I. It was at anaphase I that many rye univalents lagged behind those of wheat, followed by equational division. This resulted in the formation of chromosomal segments and micronuclei at telophase I or II. Micronuclei could also be generated from the immobilized univalents in the periphery of cells. Synapsis and translocations between wheat and rye genomes, chromosome bridges, and unreduced gametes were detected. Therefore, it is proposed that rye chromosome elimination may involve chromatid lagging, fragmentation and micronucleation, or the immobilization of certain univalents during meiosis instead of mitosis in the relatively advanced generations. This mechanism, together with spontaneous incremental increase of rye chromosome number, permitted the generation of various germplasms for wheat improvement.

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Section: Introductionmentioning

confidence: 99%

Mitotic and meiotic behavior of rye chromosomes in wheat - Psathyrostachys huashanica amphiploid x triticale progeny

Xie

Kang²,

Sparkes³

et al. 2013

Genet. Mol. Res.

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“…Bread wheat DH are produced by various intergeneric crosses viz., wheat x maize (Laurie and Reymondie, 1991;Inagaki and Mujeeb-Kazi, 1995;Inagaki, 2003) wheat x pearl millet (Inagaki and MujeebKazi, 1995;Amin et al, 2010), wheat x teosinte (Suenaga et al, 1997), wheat x barely (Barclay, 1975) and wheat x sorghum (Inagaki and Mujeeb-Kazi, 1995). The crossability of T. aestivum × Hordeum bulbosum depends on the wheat allelic composition for the Kr genes responsible for the incompatibility between these two species (Sitch and Snape, 1987).…”

Section: Wheat X Maize Wide Cross Methods Of Haploid Inductionmentioning

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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“…A population of 114 doubled haploid lines was derived from F 1 plants of Keumkang and Olgeuru crosses using the wheat × maize system according to the procedures of Inagaki and Mujeeb-Kazi (1995) at International Maize and Wheat Improvement Center (CIMMYT, El Batan, Mexico). The doubled haploid lines were grown at the Crop Experimental Farm of the National Institute of Crop Science, RDA (Iksan, Korea), for seed multiplication in 2009.…”

Section: Plant Materialsmentioning

confidence: 99%

Mapping of QTL for Color of Noodle Dough Sheet in a Doubled Haploid Population

Kang¹,

Chen²,

Kim³

et al. 2015

JAS

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This study was conducted for identification of the quantitative trait loci (QTL) associated with the color of flour and noodle dough sheets for the production of white salted noodles by analysis of a doubled haploid population from a cross between Korean wheat cultivars carrying different color values for the flour and noodle dough sheets. The DH population was evaluated in replicated field trials in 2011 and 2012 in upland conditions in Iksan, Korea. The color differences were measured as CIE-LAB L, a and b values. Xgwm190 located on chromosome 5D explained 13.3%-22.8% of the phenotypic variation in the color of flour over the average of two years. Xgwm190 also explained 11.8% and 24.1% of the phenotypic variation for the L and b values of the noodle dough sheets for the average of two years, respectively. Xbarc81 and Xgwm133 accounted for 7.9% and 9.8% of the phenotypic variation in the b value of flour produced in 2012 and the noodle dough sheets from flour produced in 2011, respectively. The putative marker for flour and noodle dough sheet color, Xgwm190, was applied to validate the relationship between genotypes of 24 Korean wheat cultivars. Fourteen of the Korean wheat cultivars contained genotype a, which represented homozygous to Keumkang at Xgwm190, showed lower L values of the flour and noodle dough sheets (91.6 and 83.5, respectively) than genotype b (93.6 and 85.1, respectively), which represented homozygous to Olgeuru at Xgwm190. Xgwm190 could be used for the selection of wheat lines with bright color in Korean wheat breeding programs.

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Comparison of Polyhaploid Production Frequencies in Crosses of Hexaploid Wheat with Maize, Pearl Millet and Sorghuml.

Cited by 43 publications

References 20 publications

Mitotic and meiotic behavior of rye chromosomes in wheat - Psathyrostachys huashanica amphiploid x triticale progeny

Mitotic and meiotic behavior of rye chromosomes in wheat - Psathyrostachys huashanica amphiploid x triticale progeny

Recent advances and application of doubled haploids in wheat breeding

Mapping of QTL for Color of Noodle Dough Sheet in a Doubled Haploid Population

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