New genetic resources in wheat breeding for increased grain protein content

Митрофанова, О. П.; Khakimova, A. G.

doi:10.1134/s2079059717040062

Cited by 13 publications

(4 citation statements)

References 40 publications

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“…Grain protein content holds significant importance in human and animal nutrition (Mitrofanova & Khakimova, 2017). Previous studies have demonstrated substantial increases in grain protein content, up to 34.4%, under abiotic stress conditions (Zhang et al., 2014).…”

Section: Discussionmentioning

confidence: 99%

Improving resilience to high temperature in drought: water replenishment enhances sucrose and amino acid metabolisms in maize grain

Wang,

Zhu

et al. 2024

The Plant Journal

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SUMMARYHeat stress poses a significant threat to maize, especially when combined with drought. Recent research highlights the potential of water replenishment to ameliorate grain weight loss. However, the mitigating mechanisms of heat in drought stress, especially during the crucial early grain‐filling stage, remain poorly understood. We investigated the mechanism for mitigating heat in drought stress by water replenishment from the 12th to the 32nd days after silking in a controlled greenhouse experiment (Exp. I) and field trial (Exp. II). A significant reduction in grain weight was observed in heat stress compared to normal conditions. When water replenishment was applied to increase soil water content (SWC) under heat stress, the grain yield exhibited a notable increase ranging from 28.4 to 76.9%. XY335 variety was used for transcriptome sequencing to analyze starch biosynthesis and amino acid metabolisms in Exp. I. With water replenishment, the transcripts of genes responsible for trehalose 6‐phosphate phosphates (TPP), alpha‐trehalase (TRE), ADP‐glcpyrophosphorylase, and starch synthase activity were stimulated. Additionally, the expression of genes encoding TPP and TRE contributed to an enhanced conversion of trehalose to glucose. This led to the conversion of sucrose from glucose‐1‐phosphate to ADP‐glucose and ADP‐glucose to amylopectin, ultimately increasing starch production by 45.1%. Water replenishment to boost SWC during heat stress also elevated the levels of essential amino acids in maize, including arginine, serine, tyrosine, leucine, glutamic acid, and methionine, providing valuable support to maize plants in adversity. Field trials further validated the positive impact of water replenishment on SWC, resulting in a notable increase in grain yield ranging from 7.1 to 9.2%. This study highlights the vital importance of adapting to abiotic stress and underscores the necessity of developing strategies to counteract its adverse effects on crop yield.

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Section: Discussionmentioning

confidence: 99%

Improving resilience to high temperature in drought: water replenishment enhances sucrose and amino acid metabolisms in maize grain

Wang,

Zhu

et al. 2024

The Plant Journal

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“…Plant yield improvement is an important goal of wheat breeding programs (Mitrofanova and Khakimova, 2017; Nazari et al , 2018, 2019; Rasheed et al ., 2018; Tadesse et al ., 2019). In this regard, the determination of plant yield and growth components is one of the major areas of breeding programs.…”

Section: Discussionmentioning

confidence: 99%

Effects of salinity stress on proline content and expression ofΔ¹-pyrroline-5-carboxylate synthaseandvacuolar-type H⁺subunit Egenes in wheat

Goharrizi

Baghizadeh

Afroushteh

et al. 2020

Plant Genet. Resour.

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To evaluate the responses of some important agronomic traits of 14 bread wheat cultivars, a split plot experiment was conducted based on a randomized complete block design under non-stress, moderate and severe salinity stress conditions. In this study, Backcross and Roshan were identified as the most salinity-tolerant cultivars, while Mihan and Shirudi were considered as the most salinity-sensitive cultivars. The proline content, as well as Δ1-pyrroline-5-carboxylate synthase (P5CS) and vacuolar-type H+-ATPase subunit E (W36) gene expression levels, were examined in these cultivars under normal, moderate and high salinity stress conditions. The proline content and P5CS gene expression level increased with a rise in NaCl concentration. Further, a direct relationship was observed between the proline content and P5CS gene expression in all samples. Our results showed that W36 gene expression in Backcross and Roshan cultivars, as the most resistant ones, strongly increased with elevation of the NaCl concentrations. On the other hand, in the sensitive cultivars such as Mihan and Shirudi, small changes were observed in the gene expression levels with rising salinity levels. Additionally, Backcross and Roshan cultivars had the highest proline content as well as P5CS and W36 genes expression levels under moderate and high salinity stress levels.

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“…oryzae), "Swarna" against abiotic stress including drought and salinity (Sundaram et al, 2008;Khanna et al, 2015;Ratna Madhavi et al, 2016); Wheat products "Overlay" and "Jagger" (Kuraparthy et al, 2009); In pearl millet, "HHB 67 improved" against downy mildew disease (Rai et al, 2008); Pulse product "Pusa 10216" having drought tolerant traits. "Farnum Somerse VR 1128" were developed in United States, Canada, and Australia respectively using GAB for "grain protein content" (Mitrofanova and Khakimova, 2017).…”

Section: Post-genomic Era In Crop Breedingmentioning

confidence: 99%

Smart breeding approaches in post-genomics era for developing climate-resilient food crops

et al. 2022

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New genetic resources in wheat breeding for increased grain protein content

Cited by 13 publications

References 40 publications

Improving resilience to high temperature in drought: water replenishment enhances sucrose and amino acid metabolisms in maize grain

Improving resilience to high temperature in drought: water replenishment enhances sucrose and amino acid metabolisms in maize grain

Effects of salinity stress on proline content and expression ofΔ¹-pyrroline-5-carboxylate synthaseandvacuolar-type H⁺subunit Egenes in wheat

Smart breeding approaches in post-genomics era for developing climate-resilient food crops

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New genetic resources in wheat breeding for increased grain protein content

Cited by 13 publications

References 40 publications

Improving resilience to high temperature in drought: water replenishment enhances sucrose and amino acid metabolisms in maize grain

Improving resilience to high temperature in drought: water replenishment enhances sucrose and amino acid metabolisms in maize grain

Effects of salinity stress on proline content and expression ofΔ1-pyrroline-5-carboxylate synthaseandvacuolar-type H+subunit Egenes in wheat

Smart breeding approaches in post-genomics era for developing climate-resilient food crops

Contact Info

Product

Resources

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Effects of salinity stress on proline content and expression ofΔ¹-pyrroline-5-carboxylate synthaseandvacuolar-type H⁺subunit Egenes in wheat