Ramie (Boehmeria nivea L. Gaud) Genetic Improvement

Satya, Pratik; Mitra, Sabyasachi; Ray, Deb Prasad

doi:10.1007/978-3-030-23265-8_5

Cited by 4 publications

(4 citation statements)

References 53 publications

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“…Current development in genetic and genomic resources, including genome sequencing, diversity analysis, transcriptome characterization, the construction of genetic maps, and the development of transgenic cultivars, provide new prospects to improve the genetic makeup of the ramie cultivars for better output and higher resistance to biotic and abiotic stresses. These parameters have been significantly reviewed in ramie [31]. Unfortunately, the information on QTL mapping in ramie is negligible, which needs urgent studies to screen the population for Cd tolerance and identify the QTL to be used in the QTL pyramiding program [36,126].…”

Section: Qtl Mapping For CD Tolerance In Ramiementioning

confidence: 99%

“…More significantly, ramie can accumulate a comparatively large number of heavy metals in its above-ground portion [30]. Ramie is a relatively tolerant crop against heavy metals stress, especially Cd stress, as it absorbs Cd from heavy metals-contaminated soils [27,30,31]. An earlier study showed that ramie has a certain degree of tolerance to soil Cd stress at a concentration of ≤20 mg/kg [32].…”

Section: Introductionmentioning

confidence: 99%

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A Systematic Review on the Improvement of Cd Stress Tolerance in Ramie Crop, Limitations and Future Prospective

Rasheed,

Jie,

et al. 2023

Agronomy

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Cadmium (Cd) is a non-essential, highly phytotoxic metal and damages ramie plant growth and development even at low concentrations. Ramie is one of the most significant crops in China, with excellent fiber quality and immense industrial importance. Planting Cd-tolerant ramie cultivars can prevent yield loss on contaminated soil. Previously, significant efforts have been made to develop Cd tolerance in ramie. However, the Cd tolerance mechanism is still not fully understood; hence, breeding industrial crops is critical to tackling the ongoing challenges. Cd tolerance is a complex genetic mechanism requiring high-level molecular studies to clarify the genes network. Genetic studies have identified several Cd-tolerant genes in ramie, which led to the development of several ramie cultivars suitable to grow on toxic soils; however, due to the continuous rise in Cd toxicity, potent molecular tools are critical in modern-day breeding programs. Genetic engineering, and transcriptome analysis have been used to develop abiotic stress tolerance in ramie, but QTL mapping and clustered regularly interspaced short palindromic repeats (CRISPR) are rarely studied. However, studies are still limited in addressing this issue. This review critically elaborated on using QTL mapping, transcriptomes, transcription factors, CRISPR/Cas9, and genetic engineering to enhance Cd tolerance in ramie. These genes/QTL should be transferred or edited into sensitive cultivars using genetic engineering or CRISPR/Cas9. CRISPR/Cas9 is highly recommended because it provides targeted gene editing in ramie, its use is limited and can address the research gaps, and it would revolutionize the field of agriculture. Limitations, gaps, and future potential are briefly discussed. This review paper presents new clues to help future researchers comprehensively understand Cd tolerance in ramie and develop tolerant cultivars for industrial purposes.

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Section: Qtl Mapping For CD Tolerance In Ramiementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Systematic Review on the Improvement of Cd Stress Tolerance in Ramie Crop, Limitations and Future Prospective

Rasheed,

Jie,

et al. 2023

Agronomy

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“…The production and success of ramie farming systems are deteriorating slowly, and there is a critical need to improve farming methods. Because of this reason, the need to identify genetic factors behind drought tolerance (DT) is a critical need at this time ( Satya et al, 2019 ). There is an urgent need to investigate different signaling cascades because of DS, keeping in mind the current situation to identify the genetics of DT mechanism in ramie ( An et al, 2015b ).…”

Section: Introductionmentioning

confidence: 99%

Improving Drought Stress Tolerance in Ramie (Boehmeria nivea L.) Using Molecular Techniques

Rasheed

Jie²,

Nawaz³

et al. 2022

Front. Plant Sci.

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Ramie is one of the most significant fiber crops and contributes to good quality fiber. Drought stress (DS) is one of the most devastating abiotic factors which is accountable for a substantial loss in crop growth and production and disturbing sustainable crop production. DS impairs growth, plant water relation, and nutrient uptake. Ramie has evolved a series of defense responses to cope with DS. There are numerous genes regulating the drought tolerance (DT) mechanism in ramie. The morphological and physiological mechanism of DT is well-studied; however, modified methods would be more effective. The use of novel genome editing tools like clustered regularly interspaced short palindromic repeats (CRISPR) is being used to edit the recessive genes in crops to modify their function. The transgenic approaches are used to develop several drought-tolerant varieties in ramie, and further identification of tolerant genes is needed for an effective breeding plan. Quantitative trait loci (QTLs) mapping, transcription factors (TFs) and speed breeding are highly studied techniques, and these would lead to the development of drought-resilient ramie cultivars. The use of hormones in enhancing crop growth and development under water scarcity circumstances is critical; however, using different concentrations and testing genotypes in changing environments would be helpful to sort the tolerant genotypes. Since plants use various ways to counter DS, investigating mechanisms of DT in plants will lead to improved DT in ramie. This critical review summarized the recent advancements on DT in ramie using novel molecular techniques. This information would help ramie breeders to conduct research studies and develop drought tolerant ramie cultivars.

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“…Cells in its stem phloem are long, with a maximum length of 60 cm, and are made up of nearly pure cellulose (ca. 96%) ( Satya et al, 2019 ). These long bast cells have traditionally been used as natural fibers to produce a variety of products, such as cloth, finishing net, and upholstery fabrics.…”

Section: Introductionmentioning

confidence: 99%

Seasonal Nutrient Cycling and Enrichment of Nutrient-Related Soil Microbes Aid in the Adaptation of Ramie (Boehmeria nivea L.) to Nutrient-Deficient Conditions

Song

Iqbal

et al. 2021

Front. Plant Sci.

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The breeding for varieties tolerant of adverse growing conditions is critical for sustainable agriculture, especially for ramie (Boehmeria nivea L.). However, a lack of information on the tolerance of ramie to nutrient-deficient conditions has hindered efforts to breed ramie varieties tolerant of such conditions. The main objective of this study was to explore the tolerance strategies of ramie plants under poor soil conditions using long-term (8–9 years) field trials. Genotypes of Duobeiti 1 and Xiangzhu XB were highly tolerant of poor soil conditions. The contributions of seasonal nutrient cycling and rhizobacteria to the ability of ramie to tolerate poor soil were tested. Nitrogen and phosphorus retranslocation to the root at the end of the growing season helped ramie adapt to poor soil conditions. The contribution of the microbial community was analyzed using high-throughput Illumina MiSeq sequencing technology. The enrichment of beneficial bacteria (mainly Bradyrhizobium, Gaiella, and norank_o_Gaiellales) and the reduction of harmful fungi (mainly Cladosporium and Aspergillus) also contributed to the ability of ramie to tolerate poor soils. The results of this study provide new insight into the ability of ramie to tolerate adverse conditions and aid future efforts to breed and cultivate ramie tolerant of adverse conditions.

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Ramie (Boehmeria nivea L. Gaud) Genetic Improvement

Cited by 4 publications

References 53 publications

A Systematic Review on the Improvement of Cd Stress Tolerance in Ramie Crop, Limitations and Future Prospective

A Systematic Review on the Improvement of Cd Stress Tolerance in Ramie Crop, Limitations and Future Prospective

Improving Drought Stress Tolerance in Ramie (Boehmeria nivea L.) Using Molecular Techniques

Seasonal Nutrient Cycling and Enrichment of Nutrient-Related Soil Microbes Aid in the Adaptation of Ramie (Boehmeria nivea L.) to Nutrient-Deficient Conditions

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