Unrevalling phenotypic diversity of root system architecture in ancient wheat species versus modern wheat cultivars

Hayati AKMAN; Emine YILDIRIM; Seydi Ahmet BAĞCI

doi:10.55779/nsb15411703

Authors

Hayati AKMAN Department of Plant and Animal Production, Sarayönü Vocational School, Selçuk University, 42430 (TR)
Emine YILDIRIM Department of Plant and Animal Production, Sarayönü Vocational School, Selçuk University, 42430 (TR)
Seydi Ahmet BAĞCI Department of Plant and Animal Production, Sarayönü Vocational School, Selçuk University, 42430 (TR)

DOI:

https://doi.org/10.55779/nsb15411703

Keywords:

ancient wheat, rooting depth, root biomass, shoot traits, phenotyping

Abstract

Understanding the phenotypic variability in root system architecture and root-shoot relationships across different growth stages of wheat is of utmost importance for the improvement of genotypes with enhanced nutrient uptake and resource-use efficiency. This study focused on identifying variations and relationships in the root and shoot characteristics of seven modern cultivars and twelve ancient wheat accessions of different species, including T. monococcum, T. turanicum, T. polonicum, T. mirabile, T. durum, and T. aestivum, during the early vegetative growth and stem elongation stages. The results demonstrated significant phenotypic variation among the genotypes for shoot traits, root biomass, rooting depth, R/S ratio, and seminal and nodal root numbers. When considering both growth stages, the dry land-adapted cultivar ‘Taner’ and ancient wheat species, such as T. turanicum (2) and T. monococcum (1) accessions, exhibited deeper roots, which can enhance access to water in drought-prone areas. Furthermore, it was observed that modern wheat cultivars and T. turanicum accessions exhibited increased root biomass, suggesting a higher allocation of resources towards root growth, which could potentially enhance nutrient uptake. Conversely, T. monococcum accessions and T. mirabile revealed lower root biomass compared to other ancient species and modern cultivars. Additionally, the unrooted cluster analysis based on root biomass, rooting depth, and root to shoot ratio at both growth stages indicated a distinct separation of T. monococcum accessions and T. mirabile from other genotypes. Overall, these findings underscore the importance of phenotypic diversity in root traits for crop improvement and adaptation to varying environments. Identifying genotypes with desirable root characteristics can enhance nutrient and water uptake efficiencies, leading to increased crop productivity and sustainability.

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References

Akman H, Karaduman Y (2021). Evaluating technological quality of cultivated Triticum species, interspecific, and intergeneric hybrids for wheat-based products and breeding programs. Journal of Cereal Science 99:1-9. https://doi.org/10.1016/j.jcs.2021.103188

Araki H, Iijima M (2001). Deep rooting in winter wheat: rooting nodes of deep roots in two cultivars with deep and shallow root systems. Plant Production Science, 4(3):215-219. https://doi.org/10.1626/pps.4.215

Bakhshandeh S, Kertesz MA, Corneo PE, Dijkstra FA (2016). Dual-labeling with 15 N and H 2 18 O to investigate water and N uptake of wheat under different water regimes. Plant and Soil 408:429-441. https://doi.org/10.1007/s11104-016-2944-8

Blanco A, Mangini G, Giancaspro A, Giove SL, Simeone R, Signorile AM, ... Paschen B (2017). Differences in root morphology of modern wheat and barley varieties and their wild ancestors. Doctoral dissertation, Hochschule Rhein-Waal.

Duncan EG, O'Sullivan CA, Roper MM, Palta J, Whisson K, Peoples MB (2018). Yield and nitrogen use efficiency of wheat increased with root length and biomass due to nitrogen, phosphorus, and potassium interactions. Journal of Plant Nutrition and Soil Science 181(3):364-373. https://doi.org/10.1002/jpln.201700376

Gregory PJ. Bengough AG, Grinev DV, Valentine TA (2013). Crop root systems and nutrient uptake from soils. In Crop Physiology: Applications for Genetic Improvement and Agronomy. Academic Press, pp 1-32.

Jordan WR, Dugas Jr WA, Shouse PJ (1983). Strategies for crop improvement for drought-prone regions. In Developments in Agricultural and Managed Forest Ecology 12:281-299).

Kashiwagi J, Krishnamurthy L, Crouch JH, Serraj R (2017). Variability of root length density and its contributions to seed yield in chickpea (Cicer arietinum L.) under terminal drought stress. Field Crops Research 201:146-157. https://doi.org/10.1016/j.fcr.2005.02.012

Kilian B, Özkan H, Walther A, Kohl J, Dagan T, Salamini F, Martin W (2007). Molecular diversity at 18 loci in 321 wild and 92 domesticate lines reveal no reduction of nucleotide diversity during Triticum monococcum (einkorn) domestication: implications for the origin of agriculture. Molecular Biology and Evolution 24(12):2657-2668. https://doi.org/10.1093/molbev/msm192

Koevoets IT, Venema JH, Elzenga JT, Testerink C (2016). Roots withstanding their environment: exploiting root system architecture responses to abiotic stress to improve crop tolerance. Frontiers in Plant Science 7:1-19. https://doi.org/10.3389/fpls.2016.01335

Kulkarni M, Soolanayakanahally R, Ogawa S, Uga Y, Selvaraj MG, Kagale S (2017). Drought response in wheat: key genes and regulatory mechanisms controlling root system architecture and transpiration efficiency. Frontiers in Chemistry 5:1-13. https://doi.org/10.3389/fchem.2017.00106

Manschadi AM, Manske GGB, Vlek PLG (2013). Root architecture and resource acquisition: Wheat as a model plant. Plant roots: The hidden half 1-22.

Manske GG, Ortiz-Monasterio JI, van Ginkel M, González RM (2016). Traits associated with improved P-uptake efficiency in CIMMYT's semidwarf spring bread wheat grown on an acid andisol in Mexico. Euphytica 212(1):33-45.

Matsuoka Y (2011). Evolution of polyploid Triticum wheats under cultivation: the role of domestication, natural hybridization, and allopolyploid speciation in their diversification. Plant Cell Physiology 52(5):750-764. https://doi.org/10.1093/pcp/pcr018

Ober ES, Alahmad S, Cockram J, Forestan C, Hickey LT, Kant J, ... Watt M (2021). Wheat root systems as a breeding target for climate resilience. Theoretical and Applied Genetics 134(6):1645-1662. https://doi.org/10.1007/s00122-021-03819-w

Odone A, Popovic O, Thorup-Kristensen K (2023). Genotypic variation in deep roots: implications for nitrogen uptake and drought tolerance in winter wheat. Plant and Soil 1-27. https://doi.org/10.21203/rs.3.rs-2639804/v1

Pask AJD, Reynolds MP (2013). Breeding for yield potential has increased deep soil water extraction capacity in irrigated wheat. Crop Science 53(5):2090-2104. https://doi.org/10.2135/cropsci2013.01.0011

Rathod GR, Pandey R, Chinnusamy V, Paul V, Jain N, Singh MP, Mandal PK (2022). Deeper root system architecture confers better stability to photosynthesis and yield compared to shallow system under terminal drought stress in wheat (Triticum aestivum L.). Plant Physiology Reports 27(2):250-259. https://doi.org/10.1007/s40502-022-00652-1

Ruiz M, Giraldo P, González JM (2018). Phenotypic variation in root architecture traits and their relationship with eco-geographical and agronomic features in a core collection of tetraploid wheat landraces (Triticum turgidum L.). Euphytica 214(3):1-17. https://doi.org/10.1007/s10681-018-2133-3

Saengwilai P, Tian X, Lynch JP (2014). Low crown root number enhances nitrogen acquisition from low-nitrogen soils in maize. Plant Physiologly 166:581-589. https://doi.org/10.1104/pp.113.232603

Shorinola O, Kaye R, Golan G, Peleg Z, Kepinski S, Uauy C (2019). Genetic screening for mutants with altered seminal root numbers in hexaploid wheat using a high-throughput root phenotyping platform. G3: Genes, Genomes, Genetics 9(9):2799-2809. https://doi.org/10.1534/g3.119.400537

Waines JG, Ehdaie B (2007). Domestication and crop physiology: roots of green-revolution wheat. Annals of Botany 100(5):991-998. https://doi.org/10.1093/aob/mcm180

Xu F, Chen S, Yang X, Zhou S, Chen X, Li J, ... He D (2021). Genome-wide association study on seminal and nodal roots of wheat under different growth environments. Frontiers in Plant Science 11:1-13. https://doi.org/10.3389/fpls.2020.602399

Wang HJ, Huang XQ, Röder MS, Börner A (2002). Genetic mapping of loci determining long glumes in the genus Triticum. Euphytica 123:287-293.

White PJ, George TS, Gregory PJ, Bengough AG, Hallett PD, McKenzie BM (2013). Matching roots to their environment. Annals of Botany 112(2):207-222. https://doi.org/10.1093/aob/mct123

Willcox G (2005). The distribution, natural habitats and availability of wild cereals in relation to their domestication in the Near East: multiple events, multiple centres. Vegetation History and Archaeobotany 14(4):534-541. https://doi.org/10.1007/s00334-005-0075-x

York LM, Slack S, Bennett MJ, Foulkes MJ (2018). Wheat shovelomics I: a field phenotyping approach for characterizing the structure and function of root systems in tillering species. BioRxiv 280875. https://doi.org/10.1101/280875

Zohary D, Hopf M, Weiss E (2012). Domestication of Plants in the Old World: The Origin and Spread of Cultivated Plants in West Asia, Europe, and the Nile Valley. Oxford University Press.