Evolution of Wheat Under Cultivation

Feldman, Moshe; Levy, Avraham A.

doi:10.1007/978-3-031-30175-9_13

Cited by 3 publications

(3 citation statements)

References 246 publications

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“…Some reviews focused on semolina and pasta quality, such as the rheological properties of semolina [22], phenolic compounds and strategies to formulate functional pasta [23], nutritional value, and the technological and sensory properties of durum pasta enriched with dietary compounds [24][25][26]. Other reviews concern different cereal crops, including durum wheat, i.e., they focus on wheat evolution [27,28], heat and drought resilience [29], wheat breeding [30], the influence of climate on agricultural decisions [31], and pesticide risk assessment [32].…”

Section: Introductionmentioning

confidence: 99%

Structure and Trends of Worldwide Research on Durum Wheat by Bibliographic Mapping

Blanco

2024

IJPB

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The bibliometric mapping approach is a quantitative methodology to analyze the structure and evolution of research activities in a scientific area or a discipline. The objective of the current study was to perform a bibliometric analysis of the worldwide durum wheat literature published from 1961 to 2022 to identify topics and trends and their evolution over time. A total of 7512 documents were analyzed to generate bibliometric maps illustrating the main research topics. Most of the articles (91.6%) were published in indexed journals, with a low percentage (3.4%) in conference proceedings. The most active journals were the Journal of Cereal Science, Euphytica, Theoretical and Applied Genetics, Cereal Research Communications, and Cereal Chemistry. Italy, the USA, Canada, Spain, and France were the countries publishing the most documents. Research interests were focused on mutagenesis, interspecific hybridization, and technological quality in 1961–1980 and moved to conservation farming, molecular genetics, and nutritional quality in the last two decades. Future durum wheat production is facing challenges from climate change, water scarcity, and rising demand for sustainable food production. Advancements in molecular breeding techniques, genome editing, precision agriculture, and conservation farming can expedite wheat improvement and pave the way toward a healthier environment. The analysis of a large amount of bibliographic data provides useful information for researchers and policymakers and represents a starting point for a comprehensive discussion for future research.

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Section: Introductionmentioning

confidence: 99%

Structure and Trends of Worldwide Research on Durum Wheat by Bibliographic Mapping

Blanco

2024

IJPB

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“…Wheat ( Triticum aestivum L.) is one of the most important staple crops in the world and, along with its close relatives in the tribe Triticeae (the wheat tribe) of the grass family, is mainly distributed in arid and semi-arid areas 13,14 . Drought stress is a limiting factor for wheat growth and often results in significant grain yield reduction and quality decline 15,16 .…”

Section: Introductionmentioning

confidence: 99%

Horizontally acquiredCSPgenes contribute to wheat adaptation and improvement

Wang,

Guo,

Bai

et al. 2024

Preprint

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Although horizontal gene transfer (HGT) often facilitates environmental adaptation of recipient organisms, whether and how they might affect crop evolution and domestication is unclear. Here we show that three genes encoding cold shock proteins (CSPs) were transferred from bacteria to the last common ancestor of Triticeae, a tribe of the grass family that includes several major staple crops such as wheat, barley, and rye. The acquiredCSPgenes in wheat (TaCSPs) are functionally conserved with their bacterial homologs by encoding a nucleic acid binding protein. Experimental evidence indicates thatTaCSPgenes positively regulate drought response and improve photosynthetic efficiency under water deficit conditions, by directly targeting a type 1 metallothionein gene to increase ROS scavenging, which in turn contributed to the geographic expansion of wheat. We identified an eliteCSPhaplotype inAegilops-tauschii, introduction of which to wheat significantly increased drought tolerance, photosynthetic efficiency and grain yields. These findings not only provide major insights into the role of HGT in crop adaptation and domestication, but also demonstrate that novel microbial genes introduced through HGT offer a stable and naturally optimized resource for transgenic crop breeding and improvement.

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“…Improvement in the yield and quality of wheat is another important goal for breeders, particularly with the world's population expected to grow by 50% by 2050 (Grassini et al, 2013;FAO, 2023). Domestication of wheat allowed the introduction of several key traits including kernel shattering resistance, larger seeds and free threshing that enabled easier harvest, better reproducibility and diversified end uses (Feldman, 2001;Charmet, 2011;Peng et al, 2011;Zohary et al, 2012;Gioia et al, 2015). Nevertheless, it is presumed that natural genetic variability in wheat was gradually lost in the process of domestication and also in the course of natural and human selection pressure for the improvement of modern cultivars (Diamond, 2002;Haudry et al, 2007;Rahman et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Genome-wide association analysis of tan spot disease resistance in durum wheat accessions from Tunisia

Laribi,

Fredua-Agyeman,

Ben M’Barek

et al. 2023

Front. Genet.

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Background: Tunisia harbors a rich collection of unexploited durum wheat landraces (Triticum durum ssp. durum) that have been gradually replaced by elite cultivars since the 1970s. These landraces represent an important potential source for broadening the genetic background of elite durum wheat cultivars and for the introgression of novel genes for key traits, including disease resistance, into these cultivars.Methods: In this study, single nucleotide polymorphism (SNP) markers were used to investigate the genetic diversity and population structure of a core collection of 235 durum wheat accessions consisting mainly of landraces. The high phenotypic and genetic diversity of the fungal pathogen Pyrenophora tritici-repentis (cause of tan spot disease of wheat) in Tunisia allowed the assessment of the accessions for tan spot resistance at the adult plant stage under field conditions over three cropping seasons. A genome-wide association study (GWAS) was performed using a 90k SNP array.Results: Bayesian population structure analysis with 9191 polymorphic SNP markers classified the accessions into two groups, where groups 1 and 2 included 49.79% and 31.49% of the accessions, respectively, while the remaining 18.72% were admixtures. Principal coordinate analysis, the unweighted pair group method with arithmetic mean and the neighbor-joining method clustered the accessions into three to five groups. Analysis of molecular variance indicated that 76% of the genetic variation was among individuals and 23% was between individuals. Genome-wide association analyses identified 26 SNPs associated with tan spot resistance and explained between 8.1% to 20.2% of the phenotypic variation. The SNPs were located on chromosomes 1B (1 SNP), 2B (4 SNPs), 3A (2 SNPs), 3B (2 SNPs), 4A (2 SNPs), 4B (1 SNP), 5A (2 SNPs), 5B (4 SNPs), 6A (5 SNPs), 6B (2 SNPs), and 7B (1 SNP). Four markers, one on each of chromosomes 1B, and 5A, and two on 5B, coincided with previously reported SNPs for tan spot resistance, while the remaining SNPs were either novel markers or closely related to previously reported SNPs. Eight durum wheat accessions were identified as possible novel sources of tan spot resistance that could be introgressed into elite cultivars.Conclusion: The results highlighted the significance of chromosomes 2B, 5B, and 6A as genomic regions associated with tan spot resistance.

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Evolution of Wheat Under Cultivation

Cited by 3 publications

References 246 publications

Structure and Trends of Worldwide Research on Durum Wheat by Bibliographic Mapping

Structure and Trends of Worldwide Research on Durum Wheat by Bibliographic Mapping

Horizontally acquiredCSPgenes contribute to wheat adaptation and improvement

Genome-wide association analysis of tan spot disease resistance in durum wheat accessions from Tunisia

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