Analysis of grain elements and identification of best genotypes for Fe and P in Afghan wheat landraces

Kondou, Youichi; Manickavelu, Alagu; Kono, Kenji; Arifi, Mujiburahman; Kawashima, Mika; Ishii, Takayoshi; Hattori, Tomohiro; Iwata, Hiroyoshi; Tsujimoto, Hisashi; Ban, Tomohiro; Matsui, Minami

doi:10.1270/jsbbs.16041

Cited by 10 publications

(4 citation statements)

References 28 publications

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“…Kondou et al observed that the landraces exhibited greater variability than the check varieties regarding P, K, Mg, and Fe in Japan [29]. In the present study, we added two new elements and one new environment, and determined that the landraces were more variable and had higher average values than the check varieties for all elements except Fe at both locations.…”

Section: Resultsmentioning

confidence: 56%

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Genetic Nature of Elemental Contents in Wheat Grains and Its Genomic Prediction: Toward the Effective Use of Wheat Landraces from Afghanistan

et al. 2017

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Profiling elemental contents in wheat grains and clarifying the underlying genetic systems are important for the breeding of biofortified crops. Our objective was to evaluate the genetic potential of 269 Afghan wheat landraces for increasing elemental contents in wheat cultivars. The contents of three major (Mg, K, and P) and three minor (Mn, Fe, and Zn) elements in wheat grains were measured by energy dispersive X-ray fluorescence spectrometry. Large variations in elemental contents were observed among landraces. Marker-based heritability estimates were low to moderate, suggesting that the elemental contents are complex quantitative traits. Genetic correlations between two locations (Japan and Afghanistan) and among the six elements were estimated using a multi-response Bayesian linear mixed model. Low-to-moderate genetic correlations were observed among major elements and among minor elements respectively, but not between major and minor elements. A single-response genome-wide association study detected only one significant marker, which was associated with Zn, suggesting it will be difficult to increase the elemental contents of wheat by conventional marker-assisted selection. Genomic predictions for major elemental contents were moderately or highly accurate, whereas those for minor elements were mostly low or moderate. Our results indicate genomic selection may be useful for the genetic improvement of elemental contents in wheat.

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Section: Resultsmentioning

confidence: 56%

“…Three major nutrients (Mg, K, and P) and three minor nutrients (Mn, Fe, and Zn) were analyzed. Details on the methodology used are given in Kondou et al [29]. A portion of the resulting elemental concentration data (P, K, Mg and Fe in Japan) have already been reported by Kondou et al [29].…”

Section: Methodsmentioning

confidence: 99%

Genetic Nature of Elemental Contents in Wheat Grains and Its Genomic Prediction: Toward the Effective Use of Wheat Landraces from Afghanistan

et al. 2017

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“…Manickavelu et al [19] conducted a genome-wide association study on 352 Afghan wheat landraces and revealed new resistance loci for wheat stripe rust. Kondou et al [22] and Manickavelu et al [20] evaluated the collection for grain elements.…”

Section: Discussionmentioning

confidence: 99%

Tracking the adoption of bread wheat varieties in Afghanistan using DNA fingerprinting

Dreisigacker

Sharma²,

Huttner

et al. 2019

BMC Genomics

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Background Wheat is the most important staple crop in Afghanistan and accounts for the main part of cereal production. However, wheat production has been unstable during the last decades and the country depends on seed imports. Wheat research in Afghanistan has emphasized releases of new, high-yielding and disease resistant varieties but rates of adoption of improved varieties are uncertain. We applied DNA fingerprinting to assess wheat varieties grown in farmers’ fields in four Afghan provinces. Results Of 560 samples collected from farmers’ fields during the 2015–16 cropping season, 74% were identified as varieties released after 2000, which was more than the number reported by farmers and indicates the general prevalence of use of improved varieties, albeit unknowingly. At the same time, we found that local varieties and landraces have been replaced and were grown by 4% fewer farmers than previously reported. In 309 cases (58.5%), farmers correctly identified the variety they were growing, while in 219 cases (41.5%) farmers did not. We also established a reference library of released varieties, elite breeding lines, and Afghan landraces, which confirms the greater genetic diversity of the landraces and their potential importance as a genetic resource. Conclusions Our study is the first in wheat to apply DNA fingerprinting at scale for an accurate assessment of wheat varietal adoption and our findings point up the importance of DNA fingerprinting for accuracy in varietal adoption studies. Electronic supplementary material The online version of this article (10.1186/s12864-019-6015-4) contains supplementary material, which is available to authorized users.

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“…Similarly, the average content in Fe, Zn, Mn, Cu, and strontium (Sr) in wheat grain was reported to be significantly higher in 12 Sicilian landraces than in 3 modern cultivars [65]. Other study found seven Afghan wheat landraces with higher content in Fe than reference lines in three different locations [66]. In the case of rice, two Indian landraces showed a higher content in Zn in brown and even polished (considered a poor source of micronutrients) grains than the commercial variety 'BPT 5204' ('Samba Mahsuri'), very appreciated for its high yield and quality [67].…”

Section: Mineral Micronutrientsmentioning

confidence: 92%

Nutritional Value and Phytochemical Content of Crop Landraces and Traditional Varieties

Medina-Lozano¹,

Díaz²

2021

Landraces - Traditional Variety and Natural Breed

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Over the years, crops have been improved through breeding, mainly to increase production and, secondly, to introduce resistance to diseases and to achieve tolerance to abiotic stresses, these two latter by resorting to Crop Wild Relatives (CWR). This has resulted, in most cases, in homogeneous and nutritionally poor commercial varieties. Landraces and traditional varieties, barely taken into account, are key resources as they retain nutrients frequently “washed away” in the commercial varieties and also harbour a great genetic variability. They could represent a shortcut when compared to CWR in breeding, saving time and resources. The consumer’s growing interest in health and food quality has caused breeders to redirect their attention toward them. This chapter provides information about the content in compounds with health benefits, such as phenolics, minerals, vitamins, etc., of landraces and traditional varieties of the most important crops, which could help to obtain healthier and more nutritious products.

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Analysis of grain elements and identification of best genotypes for Fe and P in Afghan wheat landraces

Cited by 10 publications

References 28 publications

Genetic Nature of Elemental Contents in Wheat Grains and Its Genomic Prediction: Toward the Effective Use of Wheat Landraces from Afghanistan

Genetic Nature of Elemental Contents in Wheat Grains and Its Genomic Prediction: Toward the Effective Use of Wheat Landraces from Afghanistan

Tracking the adoption of bread wheat varieties in Afghanistan using DNA fingerprinting

Nutritional Value and Phytochemical Content of Crop Landraces and Traditional Varieties

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