Heteromorphic seeds of wheat wild relatives show germination niche differentiation

Plant Biology ◽  
2019 ◽  
Vol 22 (2) ◽  
pp. 191-202 ◽  
Author(s):  
M. Gianella ◽  
A. Balestrazzi ◽  
A. Pagano ◽  
J. V. Müller ◽  
A. C. Kyratzis ◽  
...  
Keyword(s):  
Niche Differentiation ◽  
Wild Relatives ◽  
Wheat Wild Relatives ◽  
Germination Niche

scholarly journals Drought-adaptive traits derived from wheat wild relatives and landraces

2006 ◽  
Vol 58 (2) ◽  
pp. 177-186 ◽  
Author(s):  
M. Reynolds ◽  
F. Dreccer ◽  
R. Trethowan
Keyword(s):  
Wild Relatives ◽  
Adaptive Traits ◽  
Wheat Wild Relatives

Evaluation of Wheat Wild Relatives for Resistance to Septoria Tritici Blotch

Crop Science ◽  
1994 ◽  
Vol 34 (4) ◽  
pp. 1080-1084 ◽  
Author(s):  
A. L. McKendry ◽  
G. E. Henke
Keyword(s):  
Wild Relatives ◽  
Septoria Tritici Blotch ◽  
Septoria Tritici ◽  
Wheat Wild Relatives

scholarly journals Variation in key leaf photosynthetic traits across wheat wild relatives is accession dependent not species dependent

2020 ◽  
Vol 228 (6) ◽  
pp. 1767-1780
Author(s):  
Lorna McAusland ◽  
Silvere Vialet‐Chabrand ◽  
Iván Jauregui ◽  
Amanda Burridge ◽  
Stella Hubbart‐Edwards ◽  
...  
Keyword(s):  
Wild Relatives ◽  
Wheat Wild Relatives ◽  
Photosynthetic Traits

CLONNING OF DREB1 GENE IN WHEAT WILD RELATIVES AND DEVELOPMENT OF A DNA MARKER FOR ITS MONITORING IN WHEAT BACKGROUND

2018 ◽  
Vol 53 (3) ◽  
pp. 499-510
Author(s):  
A.A. Pochtovyy ◽  
◽  
P.Yu. Kroupin ◽  
M.G. Divashuk ◽  
A.A. Kocheshkova ◽  
...  
Keyword(s):  
Dna Marker ◽  
Wild Relatives ◽  
Wheat Wild Relatives

scholarly journals Genome‐wide sequence information reveals recurrent hybridization among diploid wheat wild relatives

2020 ◽  
Vol 102 (3) ◽  
pp. 493-506 ◽  
Author(s):  
Nadine Bernhardt ◽  
Jonathan Brassac ◽  
Xue Dong ◽  
Eva‐Maria Willing ◽  
C. Hart Poskar ◽  
...  
Keyword(s):  
Wild Relatives ◽  
Diploid Wheat ◽  
Sequence Information ◽  
Genome Wide ◽  
Wheat Wild Relatives

scholarly journals Harnessing the Wild Relatives and Landraces for Fe and Zn Biofortification in Wheat through Genetic Interventions—A Review

2021 ◽  
Vol 13 (23) ◽  
pp. 12975
Author(s):  
Vivek Sharma ◽  
Mukesh Choudhary ◽  
Pawan Kumar ◽  
Jeet Ram Choudhary ◽  
Jaswant S. Khokhar ◽  
...  
Keyword(s):  
Wild Relatives ◽  
Micronutrient Deficiencies ◽  
Wheat Varieties ◽  
Transgenic Breeding ◽  
Zn Content ◽  
High Heritability ◽  
Genetic Interventions ◽  
Wheat Wild Relatives ◽  
Genomic Regions ◽  
Encoding Genes

Micronutrient deficiencies, particularly iron (Fe) and zinc (Zn), in human diets are affecting over three billion people globally, especially in developing nations where diet is cereal-based. Wheat is one of several important cereal crops that provide food calories to nearly one-third of the population of the world. However, the bioavailability of Zn and Fe in wheat is inherently low, especially under Zn deficient soils. Although various fortification approaches are available, biofortification, i.e., development of mineral-enriched cultivars, is an efficient and sustainable approach to alleviate malnutrition. There is enormous variability in Fe and Zn in wheat germplasm, especially in wild relatives, but this is not utilized to the full extent. Grain Fe and Zn are quantitatively inherited, but high-heritability and genetic correlation at multiple locations indicate the high stability of Fe and Zn in wheat. In the last decade, pre-breeding activities have explored the potential of wild relatives to develop Fe and Zn rich wheat varieties. Furthermore, recent advances in molecular biology have improved the understanding of the uptake, storage, and bioavailability of Fe and Zn. Various transportation proteins encoding genes like YSL 2, IRT 1, OsNAS 3, VIT 1, and VIT 2 have been identified for Fe and Zn uptake, transfer, and accumulation at different developing stages. Hence, the availability of major genomic regions for Fe and Zn content and genome editing technologies are likely to result in high-yielding Fe and Zn biofortified wheat varieties. This review covers the importance of wheat wild relatives for Fe and Zn biofortification, progress in genomics-assisted breeding, and transgenic breeding for improving Fe and Zn content in wheat.

scholarly journals The grain quality of wheat wild relatives in the evolutionary context

2021 ◽  
Author(s):  
Frederike Zeibig ◽  
Benjamin Kilian ◽  
Michael Frei
Keyword(s):  
Grain Quality ◽  
Storage Proteins ◽  
Crop Wild Relatives ◽  
Continuous Selection ◽  
Wild Relatives ◽  
Crop Species ◽  
Evolutionary Patterns ◽  
Full Diversity ◽  
Evolutionary Context ◽  
Wheat Wild Relatives

Abstract Key message We evaluated the potential of wheat wild relatives for the improvement in grain quality characteristics including micronutrients (Fe, Zn) and gluten and identified diploid wheats and the timopheevii lineage as the most promising resources. Abstract Domestication enabled the advancement of civilization through modification of plants according to human requirements. Continuous selection and cultivation of domesticated plants induced genetic bottlenecks. However, ancient diversity has been conserved in crop wild relatives. Wheat (Triticum aestivum L.; Triticum durum Desf.) is one of the most important staple foods and was among the first domesticated crop species. Its evolutionary diversity includes diploid, tetraploid and hexaploid species from the Triticum and Aegilops taxa and different genomes, generating an AA, BBAA/GGAA and BBAADD/GGAAAmAm genepool, respectively. Breeding and improvement in wheat altered its grain quality. In this review, we identified evolutionary patterns and the potential of wheat wild relatives for quality improvement regarding the micronutrients Iron (Fe) and Zinc (Zn), the gluten storage proteins α-gliadins and high molecular weight glutenin subunits (HMW-GS), and the secondary metabolite phenolics. Generally, the timopheevii lineage has been neglected to date regarding grain quality studies. Thus, the timopheevii lineage should be subject to grain quality research to explore the full diversity of the wheat gene pool.

scholarly journals Transferability of barley microsatellite markers for assessing genetic relationships of wheat wild relatives of Triticum and Aegilops genera

2020 ◽  
Vol 22 (2) ◽  
pp. 152-167
Author(s):  
Ahmad Ahmadi Laki ◽  
سید ابوالقاسم Mohammadi ◽  
Mohammad Moghaddam ◽  
Mostata Valizadeh ◽  
◽  
...  
Keyword(s):  
Microsatellite Markers ◽  
Genetic Relationships ◽  
Wild Relatives ◽  
Wheat Wild Relatives

scholarly journals Genetic diversity of wheat wild relatives using SSR markers

Genetika ◽  
2018 ◽  
Vol 50 (1) ◽  
pp. 131-141 ◽  
Author(s):  
Marzeih Salehi ◽  
Ahmad Arzani ◽  
Majid Talebi ◽  
Asad Rokhzadi
Keyword(s):  
Genetic Diversity ◽  
Ssr Markers ◽  
Polymorphic Information Content ◽  
Aegilops Tauschii ◽  
Wild Relatives ◽  
Wild Relative ◽  
Neighbor Joining ◽  
Aegilops Cylindrica ◽  
Wheat Improvement ◽  
Wheat Wild Relatives

Wild relatives of wheat are potential sources of valuable genetic materials for wheat improvement. Knowledge of the genetic diversity of wild relative species of wheat is crucial for their conservation and utilization. The objective of the current study was to investigate the genetic diversity of inter and intra species of Triticum monococcum ssp. aegilopoides (AA), Aegilops tauschii (DD) and Aegilops cylindrica (CCDD) originating from northern and western Iran. Thirty microsatellite (SSR) markers belonging to A, B, C and D genomes were used for analysis and 20 found to be polymorphic within and between species. The SSR markers generated a total number of 180 alleles with an average of 9 alleles per locus in 21 genotypes. The genetic diversity for all loci ranged from 0.74-0.90 with an average of 0.83. The highest genetic diversity was estimated for Xgwm186 and Xgwm205 which the latter could amplify in the A, D and CD genomes of T. monococcum, Ae. tauschii and Ae. cylindrica, respectively. In addition, the number of bands generated by Xgwm205 along with other four markers in Ae. cylindrica (CD) was two-fold than that of Ae. tauschii (D). Polymorphic information content ranged from 0.7-0.89 with an average of 0.82. The dendrogram obtained from the neighbor-joining method divided the genotypes of the three species into three distinctive groups. It can be concluded that SSR markers can be useful not only in differentiating wild species of wheat possessing A, D and C genomes, but also in assessing the genetic variation of genotypes within these species.

Phenotypic and genetic diversity of leaf rust resistance in wheat wild relatives

2020 ◽  
Vol 168 (7-8) ◽  
pp. 428-438
Author(s):  
Ali Aliakbari Sadeghabad ◽  
Ali Dadkhodaie ◽  
Bahram Heidari
Keyword(s):  
Genetic Diversity ◽  
Leaf Rust ◽  
Rust Resistance ◽  
Leaf Rust Resistance ◽  
Wild Relatives ◽  
Wheat Wild Relatives ◽  
Phenotypic And Genetic Diversity
Sign in / Sign up

Export Citation Format

Share Document