The rice annexin gene <i>OsAnn5</i> is involved in cold stress tolerance at the seedling stage

Que, Zhiqun; Lu, Qineng; Li, Qixiu; Shen, Chunxiu

doi:10.1002/pld3.539

Cited by 8 publications

(3 citation statements)

References 39 publications

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“…Plant annexins, comprising a multigene family of calcium-dependent phospholipidbinding proteins, play a vital role in responding to environmental stresses and signaling pathways during the growth and development of plants. The role of annexin genes in plant abiotic stress has been extensively studied in various crops, such as Arabidopsis [37], durum wheat [38], pepper [39], cotton [40], maize [41], and rice [42]. Annexins have been shown to regulate the flow of Ca 2+ in the root epidermis, enhancing tolerance to salt, alkali, and osmotic stress.…”

Section: Discussionmentioning

confidence: 99%

The Evolution, Expression Patterns, and Domestication Selection Analysis of the Annexin Gene Family in the Barley Pan-Genome

Chen,

et al. 2024

IJMS

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Plant annexins constitute a conserved protein family that plays crucial roles in regulating plant growth and development, as well as in responses to both biotic and abiotic stresses. In this study, a total of 144 annexin genes were identified in the barley pan-genome, comprising 12 reference genomes, including cultivated barley, landraces, and wild barley. Their chromosomal locations, physical–chemical characteristics, gene structures, conserved domains, and subcellular localizations were systematically analyzed to reveal the certain differences between wild and cultivated populations. Through a cis-acting element analysis, co-expression network, and large-scale transcriptome analysis, their involvement in growth, development, and responses to various stressors was highlighted. It is worth noting that HvMOREXann5 is only expressed in pistils and anthers, indicating its crucial role in reproductive development. Based on the resequencing data from 282 barley accessions worldwide, genetic variations in thefamily were investigated, and the results showed that 5 out of the 12 identified HvMOREXanns were affected by selection pressure. Genetic diversity and haplotype frequency showed notable reductions between wild and domesticated barley, suggesting that a genetic bottleneck occurred on the annexin family during the barley domestication process. Finally, qRT-PCR analysis confirmed the up-regulation of HvMOREXann7 under drought stress, along with significant differences between wild accessions and varieties. This study provides some insights into the genome organization and genetic characteristics of the annexin gene family in barley at the pan-genome level, which will contribute to better understanding its evolution and function in barley and other crops.

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Section: Discussionmentioning

confidence: 99%

The Evolution, Expression Patterns, and Domestication Selection Analysis of the Annexin Gene Family in the Barley Pan-Genome

Chen,

et al. 2024

IJMS

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“…In contrast, like other stresses, positive regulators of cold stress have also been reported. Like, editing of the fifth exon of annexin (OsAnn5) gene caused cold sensitivity in rice seedlings (Que et al 2020). Further, CRISPR-Cas9 based editing of OsWRKY76 TF produced cold sensitive rice lines (Zhang et al 2022a, b).…”

Section: Coldmentioning

confidence: 99%

CRISPR-Cas System, a Possible “Savior” of Rice Threatened by Climate Change: An Updated Review

Shaheen,

Ahmad,

Alghamdi

et al. 2023

Rice

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Climate change has significantly affected agriculture production, particularly the rice crop that is consumed by almost half of the world’s population and contributes significantly to global food security. Rice is vulnerable to several abiotic and biotic stresses such as drought, heat, salinity, heavy metals, rice blast, and bacterial blight that cause huge yield losses in rice, thus threatening food security worldwide. In this regard, several plant breeding and biotechnological techniques have been used to raise such rice varieties that could tackle climate changes. Nowadays, gene editing (GE) technology has revolutionized crop improvement. Among GE technology, CRISPR/Cas (Clustered Regularly Interspaced Short Palindromic Repeats/CRISPR-associated protein) system has emerged as one of the most convenient, robust, cost-effective, and less labor-intensive system due to which it has got more popularity among plant researchers, especially rice breeders and geneticists. Since 2013 (the year of first application of CRISPR/Cas-based GE system in rice), several trait-specific climate-resilient rice lines have been developed using CRISPR/Cas-based GE tools. Earlier, several reports have been published confirming the successful application of GE tools for rice improvement. However, this review particularly aims to provide an updated and well-synthesized brief discussion based on the recent studies (from 2020 to present) on the applications of GE tools, particularly CRISPR-based systems for developing CRISPR rice to tackle the current alarming situation of climate change, worldwide. Moreover, potential limitations and technical bottlenecks in the development of CRISPR rice, and prospects are also discussed.

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“…In recent years, annexins have been reported to be involved in regulating abiotic and biotic stress responses in rice [22]. For example, OsANN5 is reported to be involved in cold stress tolerance at the rice seedling stage [23]. OsANN1 positively regulates heat stress tolerance by modulating ROS homeostasis [24].…”

Section: Introductionmentioning

confidence: 99%

Rice OsANN9 Enhances Drought Tolerance through Modulating ROS Scavenging Systems

Jia,

Gu,

Chai

et al. 2023

IJMS

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Drought is a critical abiotic stress which leads to crop yield and a decrease in quality. Annexins belong to a multi-gene family of calcium- and lipid-binding proteins and play diverse roles in plant growth and development. Herein, we report a rice annexin protein, OsANN9, which in addition to regular annexin repeats and type-II Ca2+ binding sites, also consists of a C2H2-type zinc-finger domain. We found that the expression of OsANN9 was upregulated by polyethylene glycol (PEG) or water-deficient treatment. Moreover, plants that overexpressed OsANN9 had increased survival rates under drought stress, while both OsANN9-RNAi and osann9 mutants showed sensitivity to drought. In addition, the overexpression of OsANN9 increased superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) activities, which regulate reactive oxygen species homeostasis. Collectively, these findings indicate that OsANN9 may function as a positive regulator in response to drought stress by modulating antioxidant accumulation. Interestingly, the setting rates of osann9 mutant rice plants significantly decreased in comparison to wild-type plants, suggesting that OsANN9 might be involved in other molecular mechanisms in the rice seed development stage.

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The rice annexin gene OsAnn5 is involved in cold stress tolerance at the seedling stage

Cited by 8 publications

References 39 publications

The Evolution, Expression Patterns, and Domestication Selection Analysis of the Annexin Gene Family in the Barley Pan-Genome

The Evolution, Expression Patterns, and Domestication Selection Analysis of the Annexin Gene Family in the Barley Pan-Genome

CRISPR-Cas System, a Possible “Savior” of Rice Threatened by Climate Change: An Updated Review

Rice OsANN9 Enhances Drought Tolerance through Modulating ROS Scavenging Systems

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