Molecular characterization of differentTriticum monococcumssp.monococcum Glu-A1mxalleles

Li, H.Y.; Li, Z.L.; Zeng, X.X.; Zhao, Li; Chen, G.; Kou, C.L.; Ning, Shunzong; Yuan, Zhongwei; Zheng, Youliang; Liu, D.C.; Zhang, L.Q.

doi:10.1556/0806.44.2016.006

Cited by 9 publications

(4 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…monococcum accessions expressed two HMW glutenin subunits (Figure 5). Based on earlier research, the Glu‐A1 m x subunits were 1Ax2.1 b for PI 418582 and 1Ax2.1 d for PI 573524 (Li et al, 2016, 2018). Only two subunits were expressed in the tetraploid PI 119442 and were also expressed in the T .…”

Section: Resultsmentioning

confidence: 91%

Molecular cytogenetic identification of a new synthetic amphiploid (Triticum timococcum, A^tA^tGGA^mA^m) with a seed setting rate comparable with that of natural Triticum zhukovskyi

et al. 2022

View full text Add to dashboard Cite

Triticum timopheevii (AtAtGG) was previously cultivated in western Georgia, and Triticum zhukovskyi (AtAtGGAmAm) is a natural allohexaploid originating from hybridization of T. timopheevii and Triticum monococcum (AmAm). In this study, two synthetic amphiploids (Triticum timococcum, AtAtGGAmAm), Syn‐AtGAm‐20 and Syn‐AtGAm‐21, were developed by chromosome doubling of F1 hybrids between T. timopheevii and T. monococcum. Chromosomes of these two amphiploids were identified by fluorescence in situ hybridization (FISH) utilizing oligonucleotide probes Oligo‐pSc119.2‐1, Oligo‐pTa535‐1, Oligo‐pTa71‐2 and Oligo‐(AAC)7. Each amphiploid had 42 chromosomes derived from its parents, but the Glu‐A1mx subunits from einkorn were both not expressed. Syn‐AtGAm‐20 had low average seed setting rates of 19.86% and 20.50% in two different years, with abnormal spikes similar to those reported before. Syn‐AtGAm‐21 had normal spikes with average seed setting rates of 65.88% and 61.56% in two different years, comparable with those of natural T. zhukovskyi. However, the relationship between Syn‐AtGAm‐21 and natural T. zhukovskyi requires further study. This research provides new materials for studying the origin of T. zhukovskyi.

show abstract

Section: Resultsmentioning

confidence: 91%

Molecular cytogenetic identification of a new synthetic amphiploid (Triticum timococcum, A^tA^tGGA^mA^m) with a seed setting rate comparable with that of natural Triticum zhukovskyi

et al. 2022

View full text Add to dashboard Cite

show abstract

“…monococcum) landraces were found, and among them Glu-A1x2*+Glu-A1y1 had the highest frequency of approximately 31% (Şan et al, 2015). Li et al (2016) detected eight Glu-A1x alleles in the cultivated diploid wheat, and five from them were novel alleles. We succeeded to transfer the same A1x2*+A1y1 subunit pair from T. boeoticum into four durum wheat progenies through the amphiploid SHW8A-Tb.…”

Section: Resultsmentioning

confidence: 97%

Characterisation of synthetic hexaploid wheat (BBAuAuAmAm) and its potential use in wheat breeding

Daskalova

Doneva

Stanoeva

et al. 2022

Zemdirbyste-Agriculture

View full text Add to dashboard Cite

Free-threshing einkorn wheat (Triticum sinskajae A. Filat. et Kurk.) is an excellent source of resistance against wheat diseases and grain quality parameters. A new synthetic hexaploid amphiploid SHW45 (T. durum 198-2 × Triticum sinskajae acc. 18397) was studied in C 2-7 generations and characterised for field growing. Some traits such as a plant height and spike features including fertility and spike fragility revealed a large phenotypic variation. A strong selection for resistance to spikelet dispersal and a number of seeds per selfed spike led to the creation of several lines. They manifested a variety of resistance to powdery mildew at the seedling stage. Three amphiploid lines with diverse phenotypes and a complete resistance to spike brittleness were crossed as females to the wheat cultivar 'Sadovska ranozreika-4'. Viable hybrid seeds are obtained only when the synthetic form is a female parent. F 1 hybrids of amphiploid line 45-10 bore an average of 9 seeds per isolated spike, which was a significantly better yield than that of other hybrids. The lines showed homogeneity in high molecular weight (HMW) glutenins, as subunit pairs Ax2*+Ay1 and Bx17+By18 are inherited from the T. sinskajae, and T. durum form 198-2, respectively. In total, 14 F 2 , 22 BC 1 , and 141 F 2 -BC 1 seeds from the crosses with two bread wheat cultivars were planted in the field. The synthetic amphiploid lines might be promising genetic resources for resistance to powdery mildew and grain quality in wheat breeding.

show abstract

“…Researchers found three allelic variants (alleles a, b and c) [11], and seven subunits, three for Glu-A1x, and four for Glu-A1y [12]. A wider variation for the Glu-A1x was detected [13][14][15]. The spectrum of A1y-subunits was extended by 1Ay8* and 1Ay12* [16] and 1Ay8.2 and 1Ay8.3 [17,18].…”

Section: Diploid Triticum Speciesmentioning

confidence: 99%

Allelic Variation of High-Molecular-Weight Glutenin Genes in Triticum Species and Triticale (× Triticosecale Wittmack)

Spetsov,

Daskalova

2024

OBM Genet

View full text Add to dashboard Cite

High-molecular-weight glutenin subunits (HMW-GS) encoded by alleles at the Glu-A1, Glu-B1, and Glu-D1 loci confer unique bread-making properties of common wheat (Triticum aestivum L.). The identification of HMW-GS is the prerequisite for pyramiding high-quality glutenin genes. The present review is designed to list all published HMW-GS alleles in Triticum species and triticale (A- and B genomes), focusing on methods for their identification. T. monococcum is characterized by 37 alleles at the Glu-1 locus versus four alleles in T. thaoudar and 39 in T. urartu. In total, 80 alleles at Glu-A1 of diploid Triticum species and about 42 alleles found in polyploid wheat landraces and varieties (4x and 6x), including triticale, were listed. Allelic variation at the Glu-B1 locus is divided into 3 groups: a – z, aa – az, and ba – ct, comprising 121 alleles, of which 26 subunits have unspecified alleles. At least 51 allelic variants at locus Glu-D1 of Triticum species were indicated, along with carriers of the species level. In addition, subunit-specific genetic loci have been tagged, facilitating molecular marker development of high-gluten wheat cultivars through marker-assisted breeding.

show abstract

Molecular characterization of differentTriticum monococcumssp.monococcum Glu-A1^mxalleles

Cited by 9 publications

References 36 publications

Molecular cytogenetic identification of a new synthetic amphiploid (Triticum timococcum, A^tA^tGGA^mA^m) with a seed setting rate comparable with that of natural Triticum zhukovskyi

Molecular cytogenetic identification of a new synthetic amphiploid (Triticum timococcum, A^tA^tGGA^mA^m) with a seed setting rate comparable with that of natural Triticum zhukovskyi

Characterisation of synthetic hexaploid wheat (BBAuAuAmAm) and its potential use in wheat breeding

Allelic Variation of High-Molecular-Weight Glutenin Genes in <i>Triticum</i> Species and Triticale (× <i>Triticosecale</i> Wittmack)

Contact Info

Product

Resources

About

Molecular characterization of differentTriticum monococcumssp.monococcum Glu-A1mxalleles

Cited by 9 publications

References 36 publications

Molecular cytogenetic identification of a new synthetic amphiploid (Triticum timococcum, AtAtGGAmAm) with a seed setting rate comparable with that of natural Triticum zhukovskyi

Molecular cytogenetic identification of a new synthetic amphiploid (Triticum timococcum, AtAtGGAmAm) with a seed setting rate comparable with that of natural Triticum zhukovskyi

Characterisation of synthetic hexaploid wheat (BBAuAuAmAm) and its potential use in wheat breeding

Allelic Variation of High-Molecular-Weight Glutenin Genes in <i>Triticum</i> Species and Triticale (× <i>Triticosecale</i> Wittmack)

Contact Info

Product

Resources

About

Molecular characterization of differentTriticum monococcumssp.monococcum Glu-A1^mxalleles

Molecular cytogenetic identification of a new synthetic amphiploid (Triticum timococcum, A^tA^tGGA^mA^m) with a seed setting rate comparable with that of natural Triticum zhukovskyi

Molecular cytogenetic identification of a new synthetic amphiploid (Triticum timococcum, A^tA^tGGA^mA^m) with a seed setting rate comparable with that of natural Triticum zhukovskyi